pokeemerald/src/battle_ai_main.c

#include "global.h"
#include "malloc.h"
#include "battle.h"
#include "battle_anim.h"
#include "battle_ai_util.h"
#include "battle_ai_main.h"
#include "battle_factory.h"
#include "battle_setup.h"
#include "data.h"
#include "item.h"
#include "pokemon.h"
#include "random.h"
#include "recorded_battle.h"
#include "util.h"
#include "constants/abilities.h"
#include "constants/battle_ai.h"
#include "constants/battle_move_effects.h"
#include "constants/hold_effects.h"
#include "constants/moves.h"
#include "constants/items.h"

#define AI_ACTION_DONE          0x0001
#define AI_ACTION_FLEE          0x0002
#define AI_ACTION_WATCH         0x0004
#define AI_ACTION_DO_NOT_ATTACK 0x0008
#define AI_ACTION_UNK5          0x0010
#define AI_ACTION_UNK6          0x0020
#define AI_ACTION_UNK7          0x0040
#define AI_ACTION_UNK8          0x0080

// AI states
enum
{
    AIState_SettingUp,
    AIState_Processing,
    AIState_FinishedProcessing,
    AIState_DoNotProcess
};

static u8 ChooseMoveOrAction_Singles(void);
static u8 ChooseMoveOrAction_Doubles(void);
static void BattleAI_DoAIProcessing(void);

// ewram
EWRAM_DATA const u8 *gAIScriptPtr = NULL;   // Still used in contests
EWRAM_DATA u8 sBattler_AI = 0;

// const rom data
static s16 AI_CheckBadMove(u8 battlerAtk, u8 battlerDef, u16 move, s16 score);
static s16 AI_TryToFaint(u8 battlerAtk, u8 battlerDef, u16 move, s16 score);
static s16 AI_CheckViability(u8 battlerAtk, u8 battlerDef, u16 move, s16 score);
static s16 AI_SetupFirstTurn(u8 battlerAtk, u8 battlerDef, u16 move, s16 score);
static s16 AI_Risky(u8 battlerAtk, u8 battlerDef, u16 move, s16 score);
static s16 AI_PreferStrongestMove(u8 battlerAtk, u8 battlerDef, u16 move, s16 score);
static s16 AI_PreferBatonPass(u8 battlerAtk, u8 battlerDef, u16 move, s16 score);
static s16 AI_HPAware(u8 battlerAtk, u8 battlerDef, u16 move, s16 score);
static s16 AI_Roaming(u8 battlerAtk, u8 battlerDef, u16 move, s16 score);
static s16 AI_Safari(u8 battlerAtk, u8 battlerDef, u16 move, s16 score);
static s16 AI_FirstBattle(u8 battlerAtk, u8 battlerDef, u16 move, s16 score);
static s16 AI_DoubleBattle(u8 battlerAtk, u8 battlerDef, u16 move, s16 score);

static s16 (*const sBattleAiFuncTable[])(u8, u8, u16, s16) =
{
    [0] = AI_CheckBadMove,           // AI_FLAG_CHECK_BAD_MOVE
    [1] = AI_TryToFaint,             // AI_FLAG_TRY_TO_FAINT
    [2] = AI_CheckViability,         // AI_FLAG_CHECK_VIABILITY
    [3] = AI_SetupFirstTurn,         // AI_FLAG_SETUP_FIRST_TURN
    [4] = AI_Risky,                  // AI_FLAG_RISKY
    [5] = AI_PreferStrongestMove,    // AI_FLAG_PREFER_STRONGEST_MOVE
    [6] = AI_PreferBatonPass,        // AI_FLAG_PREFER_BATON_PASS
    [7] = AI_DoubleBattle,              // AI_FLAG_DOUBLE_BATTLE.
    [8] = AI_HPAware,                // AI_FLAG_HP_AWARE
    [9] = NULL,                      // AI_FLAG_NEGATE_UNAWARE
    [10] = NULL,                     // AI_FLAG_WILL_SUICIDE
    [11] = NULL,                     // AI_FLAG_HELP_PARTNER
    [12] = NULL,                     // Unused
    [13] = NULL,                     // Unused
    [14] = NULL,                     // Unused
    [15] = NULL,                     // Unused
    [16] = NULL,                     // Unused
    [17] = NULL,                     // Unused
    [18] = NULL,                     // Unused
    [19] = NULL,                     // Unused
    [20] = NULL,                     // Unused
    [21] = NULL,                     // Unused
    [22] = NULL,                     // Unused
    [23] = NULL,                     // Unused
    [24] = NULL,                     // Unused
    [25] = NULL,                     // Unused
    [26] = NULL,                     // Unused
    [27] = NULL,                     // Unused
    [28] = NULL,                     // Unused
    [29] = AI_Roaming,              // AI_FLAG_ROAMING
    [30] = AI_Safari,               // AI_FLAG_SAFARI
    [31] = AI_FirstBattle,          // AI_FLAG_FIRST_BATTLE
};

// Functions
void BattleAI_SetupItems(void)
{
    s32 i;
    u8 *data = (u8 *)BATTLE_HISTORY;

    for (i = 0; i < sizeof(struct BattleHistory); i++)
        data[i] = 0;

    // Items are allowed to use in ONLY trainer battles.
    if ((gBattleTypeFlags & BATTLE_TYPE_TRAINER)
        && !(gBattleTypeFlags & (BATTLE_TYPE_LINK | BATTLE_TYPE_SAFARI | BATTLE_TYPE_BATTLE_TOWER
                               | BATTLE_TYPE_EREADER_TRAINER | BATTLE_TYPE_SECRET_BASE | BATTLE_TYPE_FRONTIER
                               | BATTLE_TYPE_INGAME_PARTNER | BATTLE_TYPE_RECORDED_LINK)
            )
       )
    {
        for (i = 0; i < MAX_TRAINER_ITEMS; i++)
        {
            if (gTrainers[gTrainerBattleOpponent_A].items[i] != 0)
            {
                BATTLE_HISTORY->trainerItems[BATTLE_HISTORY->itemsNo] = gTrainers[gTrainerBattleOpponent_A].items[i];
                BATTLE_HISTORY->itemsNo++;
            }
        }
    }
}

void BattleAI_SetupFlags(void)
{
    if (gBattleTypeFlags & BATTLE_TYPE_RECORDED)
        AI_THINKING_STRUCT->aiFlags = GetAiScriptsInRecordedBattle();
    else if (gBattleTypeFlags & BATTLE_TYPE_SAFARI)
        AI_THINKING_STRUCT->aiFlags = AI_FLAG_SAFARI;
    else if (gBattleTypeFlags & BATTLE_TYPE_ROAMER)
        AI_THINKING_STRUCT->aiFlags = AI_FLAG_ROAMING;
    else if (gBattleTypeFlags & BATTLE_TYPE_FIRST_BATTLE)
        AI_THINKING_STRUCT->aiFlags = AI_FLAG_FIRST_BATTLE;
    else if (gBattleTypeFlags & BATTLE_TYPE_FACTORY)
        AI_THINKING_STRUCT->aiFlags = GetAiScriptsInBattleFactory();
    else if (gBattleTypeFlags & (BATTLE_TYPE_FRONTIER | BATTLE_TYPE_EREADER_TRAINER | BATTLE_TYPE_TRAINER_HILL | BATTLE_TYPE_SECRET_BASE))
        AI_THINKING_STRUCT->aiFlags = AI_FLAG_CHECK_BAD_MOVE | AI_FLAG_CHECK_VIABILITY | AI_FLAG_TRY_TO_FAINT;
    else if (gBattleTypeFlags & BATTLE_TYPE_TWO_OPPONENTS)
        AI_THINKING_STRUCT->aiFlags = gTrainers[gTrainerBattleOpponent_A].aiFlags | gTrainers[gTrainerBattleOpponent_B].aiFlags;
    else
        AI_THINKING_STRUCT->aiFlags = gTrainers[gTrainerBattleOpponent_A].aiFlags;

    if (gBattleTypeFlags & (BATTLE_TYPE_DOUBLE | BATTLE_TYPE_TWO_OPPONENTS) || gTrainers[gTrainerBattleOpponent_A].doubleBattle)
        AI_THINKING_STRUCT->aiFlags |= AI_FLAG_DOUBLE_BATTLE; // Act smart in doubles and don't attack your partner.
}

void BattleAI_SetupAIData(u8 defaultScoreMoves)
{
    s32 i, move, dmg;
    u8 moveLimitations;

    // Clear AI data but preserve the flags.
    u32 flags = AI_THINKING_STRUCT->aiFlags;
    memset(AI_THINKING_STRUCT, 0, sizeof(struct AI_ThinkingStruct));
    AI_THINKING_STRUCT->aiFlags = flags;

    // Conditional score reset, unlike Ruby.
    for (i = 0; i < MAX_MON_MOVES; i++)
    {
        if (defaultScoreMoves & 1)
            AI_THINKING_STRUCT->score[i] = 100;
        else
            AI_THINKING_STRUCT->score[i] = 0;

        defaultScoreMoves >>= 1;
    }

    moveLimitations = CheckMoveLimitations(gActiveBattler, 0, 0xFF);

    // Ignore moves that aren't possible to use.
    for (i = 0; i < MAX_MON_MOVES; i++)
    {
        if (gBitTable[i] & moveLimitations)
            AI_THINKING_STRUCT->score[i] = 0;
    }

    sBattler_AI = gActiveBattler;
    // Simulate dmg for all AI moves against all opposing targets
    for (gBattlerTarget = 0; gBattlerTarget < gBattlersCount; gBattlerTarget++)
    {
        if (GET_BATTLER_SIDE2(sBattler_AI) == GET_BATTLER_SIDE2(gBattlerTarget))
            continue;
        for (i = 0; i < MAX_MON_MOVES; i++)
        {
            dmg = 0;
            move = gBattleMons[sBattler_AI].moves[i];
            if (gBattleMoves[move].power != 0 && !(moveLimitations & gBitTable[i]))
            {
                dmg = AI_CalcDamage(move, sBattler_AI, gBattlerTarget);
                if (dmg == 0)
                    dmg = 1;
            }

            AI_THINKING_STRUCT->simulatedDmg[sBattler_AI][gBattlerTarget][i] = dmg;
        }
    }

    gBattlerTarget = SetRandomTarget(sBattler_AI);
}

u8 BattleAI_ChooseMoveOrAction(void)
{
    u32 savedCurrentMove = gCurrentMove;
    u8 ret;

    if (!(gBattleTypeFlags & BATTLE_TYPE_DOUBLE))
        ret = ChooseMoveOrAction_Singles();
    else
        ret = ChooseMoveOrAction_Doubles();

    gCurrentMove = savedCurrentMove;
    return ret;
}

static void GetAiLogicData(u8 battlerAtk, u8 battlerDef)
{
    // attacker data
    AI_DATA->atkAbility = AI_GetAbility(battlerAtk);
    AI_DATA->atkItem = gBattleMons[battlerAtk].item;
    AI_DATA->atkHoldEffect = AI_GetHoldEffect(battlerAtk);
    AI_DATA->atkParam = GetBattlerHoldEffectParam(battlerAtk);
    AI_DATA->atkSpecies = gBattleMons[battlerAtk].species;
    // target data
    AI_DATA->defAbility = AI_GetAbility(battlerDef);
    AI_DATA->defItem = (AI_GetHoldEffect(battlerDef) == HOLD_EFFECT_NONE) ? ITEM_NONE : gBattleMons[battlerDef].item;
    AI_DATA->defHoldEffect = AI_GetHoldEffect(battlerDef);
    AI_DATA->defParam = GetBattlerHoldEffectParam(battlerDef);
    AI_DATA->defSpecies = gBattleMons[battlerDef].species;
    // attacker partner data
    AI_DATA->battlerAtkPartner = BATTLE_PARTNER(battlerAtk);
    AI_DATA->partnerMove = GetAllyChosenMove();
    AI_DATA->atkPartnerAbility = AI_GetAbility(AI_DATA->battlerAtkPartner);
    AI_DATA->atkPartnerHoldEffect = AI_GetHoldEffect(AI_DATA->battlerAtkPartner);
    // target partner data
    AI_DATA->battlerDefPartner = BATTLE_PARTNER(battlerDef);
    AI_DATA->defPartnerAbility = AI_GetAbility(AI_DATA->battlerDefPartner);
    AI_DATA->defPartnerHoldEffect = AI_GetHoldEffect(AI_DATA->battlerDefPartner);
}

static u8 ChooseMoveOrAction_Singles(void)
{
    u8 currentMoveArray[MAX_MON_MOVES];
    u8 consideredMoveArray[MAX_MON_MOVES];
    u32 numOfBestMoves;
    s32 i, id;
    u32 flags = AI_THINKING_STRUCT->aiFlags;

    RecordLastUsedMoveByTarget();
    GetAiLogicData(sBattler_AI, gBattlerTarget);
    
    while (flags != 0)
    {
        if (flags & 1)
        {
            AI_THINKING_STRUCT->aiState = AIState_SettingUp;
            BattleAI_DoAIProcessing();
        }
        flags >>= 1;
        AI_THINKING_STRUCT->aiLogicId++;
        AI_THINKING_STRUCT->movesetIndex = 0;
    }

    for (i = 0; i < MAX_MON_MOVES; i++)
        gBattleStruct->aiFinalScore[sBattler_AI][gBattlerTarget][i] = AI_THINKING_STRUCT->score[i];

    // Check special AI actions.
    if (AI_THINKING_STRUCT->aiAction & AI_ACTION_FLEE)
        return AI_CHOICE_FLEE;
    if (AI_THINKING_STRUCT->aiAction & AI_ACTION_WATCH)
        return AI_CHOICE_WATCH;

    gActiveBattler = sBattler_AI;
    // If can switch.
    if (CountUsablePartyMons(sBattler_AI) > 0
        && !IsAbilityPreventingEscape(sBattler_AI)
        && !(gBattleMons[gActiveBattler].status2 & (STATUS2_WRAPPED | STATUS2_ESCAPE_PREVENTION))
        && !(gStatuses3[gActiveBattler] & STATUS3_ROOTED)
        && !(gBattleTypeFlags & (BATTLE_TYPE_ARENA | BATTLE_TYPE_PALACE))
        && AI_THINKING_STRUCT->aiFlags & (AI_FLAG_CHECK_VIABILITY | AI_FLAG_CHECK_BAD_MOVE | AI_FLAG_TRY_TO_FAINT | AI_FLAG_PREFER_BATON_PASS))
    {
        // Consider switching if all moves are worthless to use.
        if (GetTotalBaseStat(gBattleMons[sBattler_AI].species) >= 310 // Mon is not weak.
            && gBattleMons[sBattler_AI].hp >= gBattleMons[sBattler_AI].maxHP / 2)
        {
            s32 cap = AI_THINKING_STRUCT->aiFlags & (AI_FLAG_CHECK_VIABILITY) ? 95 : 93;
            for (i = 0; i < MAX_MON_MOVES; i++)
            {
                if (AI_THINKING_STRUCT->score[i] > cap)
                    break;
            }

            if (i == MAX_MON_MOVES && GetMostSuitableMonToSwitchInto() != PARTY_SIZE)
            {
                AI_THINKING_STRUCT->switchMon = TRUE;
                return AI_CHOICE_SWITCH;
            }
        }

        // Consider switching if your mon with truant is bodied by Protect spam.
        // Or is using a double turn semi invulnerable move(such as Fly) and is faster.
        if (GetBattlerAbility(sBattler_AI) == ABILITY_TRUANT
            && IsTruantMonVulnerable(sBattler_AI, gBattlerTarget)
            && gDisableStructs[sBattler_AI].truantCounter
            && gBattleMons[sBattler_AI].hp >= gBattleMons[sBattler_AI].maxHP / 2)
        {
            if (GetMostSuitableMonToSwitchInto() != PARTY_SIZE)
            {
                AI_THINKING_STRUCT->switchMon = TRUE;
                return AI_CHOICE_SWITCH;
            }
        }
    }

    numOfBestMoves = 1;
    currentMoveArray[0] = AI_THINKING_STRUCT->score[0];
    consideredMoveArray[0] = 0;

    for (i = 1; i < MAX_MON_MOVES; i++)
    {
        if (gBattleMons[sBattler_AI].moves[i] != MOVE_NONE)
        {
            // In ruby, the order of these if statements is reversed.
            if (currentMoveArray[0] == AI_THINKING_STRUCT->score[i])
            {
                currentMoveArray[numOfBestMoves] = AI_THINKING_STRUCT->score[i];
                consideredMoveArray[numOfBestMoves++] = i;
            }
            if (currentMoveArray[0] < AI_THINKING_STRUCT->score[i])
            {
                numOfBestMoves = 1;
                currentMoveArray[0] = AI_THINKING_STRUCT->score[i];
                consideredMoveArray[0] = i;
            }
        }
    }
    return consideredMoveArray[Random() % numOfBestMoves];
}

static u8 ChooseMoveOrAction_Doubles(void)
{
    s32 i, j;
    u32 flags;
    s16 bestMovePointsForTarget[MAX_BATTLERS_COUNT];
    s8 mostViableTargetsArray[MAX_BATTLERS_COUNT];
    u8 actionOrMoveIndex[MAX_BATTLERS_COUNT];
    u8 mostViableMovesScores[MAX_MON_MOVES];
    u8 mostViableMovesIndices[MAX_MON_MOVES];
    s32 mostViableTargetsNo;
    s32 mostViableMovesNo;
    s16 mostMovePoints;

    for (i = 0; i < MAX_BATTLERS_COUNT; i++)
    {
        if (i == sBattler_AI || gBattleMons[i].hp == 0)
        {
            actionOrMoveIndex[i] = 0xFF;
            bestMovePointsForTarget[i] = -1;
        }
        else
        {
            if (gBattleTypeFlags & BATTLE_TYPE_PALACE)
                BattleAI_SetupAIData(gBattleStruct->palaceFlags >> 4);
            else
                BattleAI_SetupAIData(0xF);
            
            gBattlerTarget = i;
            GetAiLogicData(sBattler_AI, gBattlerTarget);
            
            if ((i & BIT_SIDE) != (sBattler_AI & BIT_SIDE))
                RecordLastUsedMoveByTarget();

            AI_THINKING_STRUCT->aiLogicId = 0;
            AI_THINKING_STRUCT->movesetIndex = 0;
            flags = AI_THINKING_STRUCT->aiFlags;
            while (flags != 0)
            {
                if (flags & 1)
                {
                    AI_THINKING_STRUCT->aiState = AIState_SettingUp;
                    BattleAI_DoAIProcessing();
                }
                flags >>= 1;
                AI_THINKING_STRUCT->aiLogicId++;
                AI_THINKING_STRUCT->movesetIndex = 0;
            }

            if (AI_THINKING_STRUCT->aiAction & AI_ACTION_FLEE)
            {
                actionOrMoveIndex[i] = AI_CHOICE_FLEE;
            }
            else if (AI_THINKING_STRUCT->aiAction & AI_ACTION_WATCH)
            {
                actionOrMoveIndex[i] = AI_CHOICE_WATCH;
            }
            else
            {
                mostViableMovesScores[0] = AI_THINKING_STRUCT->score[0];
                mostViableMovesIndices[0] = 0;
                mostViableMovesNo = 1;
                for (j = 1; j < MAX_MON_MOVES; j++)
                {
                    if (gBattleMons[sBattler_AI].moves[j] != 0)
                    {
                        if (mostViableMovesScores[0] == AI_THINKING_STRUCT->score[j])
                        {
                            mostViableMovesScores[mostViableMovesNo] = AI_THINKING_STRUCT->score[j];
                            mostViableMovesIndices[mostViableMovesNo] = j;
                            mostViableMovesNo++;
                        }
                        if (mostViableMovesScores[0] < AI_THINKING_STRUCT->score[j])
                        {
                            mostViableMovesScores[0] = AI_THINKING_STRUCT->score[j];
                            mostViableMovesIndices[0] = j;
                            mostViableMovesNo = 1;
                        }
                    }
                }
                actionOrMoveIndex[i] = mostViableMovesIndices[Random() % mostViableMovesNo];
                bestMovePointsForTarget[i] = mostViableMovesScores[0];

                // Don't use a move against ally if it has less than 100 points.
                if (i == (sBattler_AI ^ BIT_FLANK) && bestMovePointsForTarget[i] < 100)
                {
                    bestMovePointsForTarget[i] = -1;
                    mostViableMovesScores[0] = mostViableMovesScores[0]; // Needed to match.
                }
            }

            for (j = 0; j < MAX_MON_MOVES; j++)
                gBattleStruct->aiFinalScore[sBattler_AI][gBattlerTarget][j] = AI_THINKING_STRUCT->score[j];
        }
    }

    mostMovePoints = bestMovePointsForTarget[0];
    mostViableTargetsArray[0] = 0;
    mostViableTargetsNo = 1;

    for (i = 1; i < MAX_BATTLERS_COUNT; i++)
    {
        if (mostMovePoints == bestMovePointsForTarget[i])
        {
            mostViableTargetsArray[mostViableTargetsNo] = i;
            mostViableTargetsNo++;
        }
        if (mostMovePoints < bestMovePointsForTarget[i])
        {
            mostMovePoints = bestMovePointsForTarget[i];
            mostViableTargetsArray[0] = i;
            mostViableTargetsNo = 1;
        }
    }

    gBattlerTarget = mostViableTargetsArray[Random() % mostViableTargetsNo];
    return actionOrMoveIndex[gBattlerTarget];
}

static void BattleAI_DoAIProcessing(void)
{
    while (AI_THINKING_STRUCT->aiState != AIState_FinishedProcessing)
    {
        switch (AI_THINKING_STRUCT->aiState)
        {
            case AIState_DoNotProcess: // Needed to match.
                break;
            case AIState_SettingUp:
                if (gBattleMons[sBattler_AI].pp[AI_THINKING_STRUCT->movesetIndex] == 0)
                {
                    AI_THINKING_STRUCT->moveConsidered = 0;
                }
                else
                {
                    AI_THINKING_STRUCT->moveConsidered = gBattleMons[sBattler_AI].moves[AI_THINKING_STRUCT->movesetIndex];
                }
                AI_THINKING_STRUCT->aiState++;
                break;
            case AIState_Processing:
                if (AI_THINKING_STRUCT->moveConsidered != MOVE_NONE
                  && AI_THINKING_STRUCT->score[AI_THINKING_STRUCT->movesetIndex] > 0)
                {
                    if (AI_THINKING_STRUCT->aiLogicId < ARRAY_COUNT(sBattleAiFuncTable)
                      && sBattleAiFuncTable[AI_THINKING_STRUCT->aiLogicId] != NULL)
                    {
                        // Call AI function
                        AI_THINKING_STRUCT->score[AI_THINKING_STRUCT->movesetIndex] =
                            sBattleAiFuncTable[AI_THINKING_STRUCT->aiLogicId](sBattler_AI,
                              gBattlerTarget,
                              AI_THINKING_STRUCT->moveConsidered,
                              AI_THINKING_STRUCT->score[AI_THINKING_STRUCT->movesetIndex]);
                    }
                }
                else
                {
                    AI_THINKING_STRUCT->score[AI_THINKING_STRUCT->movesetIndex] = 0;
                }

                AI_THINKING_STRUCT->movesetIndex++;
                if (AI_THINKING_STRUCT->movesetIndex < MAX_MON_MOVES && !(AI_THINKING_STRUCT->aiAction & AI_ACTION_DO_NOT_ATTACK))
                    AI_THINKING_STRUCT->aiState = AIState_SettingUp;
                else
                    AI_THINKING_STRUCT->aiState++;
                break;
        }
    }
}

// AI Score Functions
// AI_FLAG_CHECK_BAD_MOVE - decreases move scores
static s16 AI_CheckBadMove(u8 battlerAtk, u8 battlerDef, u16 move, s16 score)
{
    // move data
    u8 atkPriority = GetMovePriority(battlerAtk, move);
    u16 moveEffect = gBattleMoves[move].effect;
    u8 moveType = gBattleMoves[move].type;
    u8 moveTarget = gBattleMoves[move].target;
    u16 accuracy = AI_GetMoveAccuracy(battlerAtk, battlerDef, AI_DATA->atkAbility, AI_DATA->defAbility, AI_DATA->atkHoldEffect, AI_DATA->defHoldEffect, move);
    u8 effectiveness = AI_GetMoveEffectiveness(move, battlerAtk, battlerDef);
    bool32 isDoubleBattle = IsValidDoubleBattle(battlerAtk);
    u32 i;
    u16 predictedMove = gLastMoves[battlerDef]; // TODO better move prediction
    
    if (IsTargetingPartner(battlerAtk, battlerDef))
        return score;
    
    // check non-user target
    if (!(gBattleMoves[move].target & MOVE_TARGET_USER))
    {
        // handle negative checks on non-user target
        // check powder moves
        if (TestMoveFlags(move, FLAG_POWDER) && !IsAffectedByPowder(battlerDef, AI_DATA->defAbility, AI_DATA->defHoldEffect))
        {
            RETURN_SCORE_MINUS(20);
        }
        
        // check ground immunities
        if (moveType == TYPE_GROUND
          && !IsBattlerGrounded(battlerDef)
          && ((AI_DATA->defAbility == ABILITY_LEVITATE
          && DoesBattlerIgnoreAbilityChecks(AI_DATA->atkAbility, move))
          || AI_DATA->defHoldEffect == HOLD_EFFECT_AIR_BALLOON
          || (gStatuses3[battlerDef] & (STATUS3_MAGNET_RISE | STATUS3_TELEKINESIS)))
          && move != MOVE_THOUSAND_ARROWS)
        {
            RETURN_SCORE_MINUS(20);
        }
        
        // check off screen
        if (IsSemiInvulnerable(battlerDef, move) && moveEffect != EFFECT_SEMI_INVULNERABLE && GetWhoStrikesFirst(battlerAtk, battlerDef, TRUE) != 1)
            RETURN_SCORE_MINUS(20);    // if target off screen and we go first, don't use move
        
        // check if negates type
        switch (effectiveness)
        {
        case AI_EFFECTIVENESS_x0:
            RETURN_SCORE_MINUS(20);
            break;
        case AI_EFFECTIVENESS_x0_25:
            RETURN_SCORE_MINUS(10);
            break;
        }
        
        // target ability checks
        if (!DoesBattlerIgnoreAbilityChecks(AI_DATA->atkAbility, move))
        {
            switch (AI_DATA->defAbility)
            {
            case ABILITY_VOLT_ABSORB:
            case ABILITY_MOTOR_DRIVE:
            case ABILITY_LIGHTNING_ROD:
                if (moveType == TYPE_ELECTRIC)
                    RETURN_SCORE_MINUS(20);
                break;
            case ABILITY_WATER_ABSORB:
            case ABILITY_DRY_SKIN:
            case ABILITY_STORM_DRAIN:
                if (moveType == TYPE_WATER)
                    RETURN_SCORE_MINUS(20);
                break;
            case ABILITY_FLASH_FIRE:
                if (moveType == TYPE_FIRE)
                    RETURN_SCORE_MINUS(20);
                break;
            case ABILITY_WONDER_GUARD:
                if (effectiveness != AI_EFFECTIVENESS_x2 && effectiveness != AI_EFFECTIVENESS_x4)
                    return 0;
                break;
            case ABILITY_SAP_SIPPER:
                if (moveType == TYPE_GRASS)
                    RETURN_SCORE_MINUS(20);
                break;
            case ABILITY_JUSTIFIED:
                if (moveType == TYPE_DARK && !IS_MOVE_STATUS(move))
                    RETURN_SCORE_MINUS(10);
                break;
            case ABILITY_RATTLED:
                if (!IS_MOVE_STATUS(move)
                  && (moveType == TYPE_DARK || moveType == TYPE_GHOST || moveType == TYPE_BUG))
                    RETURN_SCORE_MINUS(10);
                break;
            case ABILITY_SOUNDPROOF:
                if (TestMoveFlags(move, FLAG_SOUND))
                    RETURN_SCORE_MINUS(10);
                break;
            case ABILITY_BULLETPROOF:
                if (TestMoveFlags(move, FLAG_BALLISTIC))
                    RETURN_SCORE_MINUS(10);
                break;
            case ABILITY_DAZZLING:
            case ABILITY_QUEENLY_MAJESTY:
                if (atkPriority > 0)
                    RETURN_SCORE_MINUS(10);
                break;
            case ABILITY_AROMA_VEIL:
                if (IsAromaVeilProtectedMove(move))
                    RETURN_SCORE_MINUS(10);
                break;
            case ABILITY_SWEET_VEIL:
                if (moveEffect == EFFECT_SLEEP || moveEffect == EFFECT_YAWN)
                    RETURN_SCORE_MINUS(10);
                break;
            case ABILITY_FLOWER_VEIL:
                if (IS_BATTLER_OF_TYPE(battlerDef, TYPE_GRASS) && (IsNonVolatileStatusMoveEffect(moveEffect) || IsStatLoweringMoveEffect(moveEffect)))
                    RETURN_SCORE_MINUS(10);
                break;
            case ABILITY_MAGIC_BOUNCE:
                if (TestMoveFlags(move, FLAG_MAGIC_COAT_AFFECTED))
                    RETURN_SCORE_MINUS(20);
                break;
            case ABILITY_CONTRARY:
                if (IsStatLoweringMoveEffect(moveEffect))
                    RETURN_SCORE_MINUS(20);
                break;
            case ABILITY_CLEAR_BODY:
            case ABILITY_FULL_METAL_BODY:
            case ABILITY_WHITE_SMOKE:
                if (IsStatLoweringMoveEffect(moveEffect))
                    RETURN_SCORE_MINUS(10);
                break;
            case ABILITY_HYPER_CUTTER:
                if ((moveEffect == EFFECT_ATTACK_DOWN ||  moveEffect == EFFECT_ATTACK_DOWN_2)
                  && move != MOVE_PLAY_NICE && move != MOVE_NOBLE_ROAR && move != MOVE_TEARFUL_LOOK && move != MOVE_VENOM_DRENCH)
                    RETURN_SCORE_MINUS(10);
                break;
            case ABILITY_KEEN_EYE:
                if (moveEffect == EFFECT_ACCURACY_DOWN || moveEffect == EFFECT_ACCURACY_DOWN_2)
                    RETURN_SCORE_MINUS(10);
                break;
            case ABILITY_BIG_PECKS:
                if (moveEffect == EFFECT_DEFENSE_DOWN || moveEffect == EFFECT_DEFENSE_DOWN_2)
                    RETURN_SCORE_MINUS(10);
                break;
            case ABILITY_DEFIANT:
            case ABILITY_COMPETITIVE:
                if (IsStatLoweringMoveEffect(moveEffect) && !IsTargetingPartner(battlerAtk, battlerDef))
                    RETURN_SCORE_MINUS(8);
                break;
            case ABILITY_COMATOSE:
                if (IsNonVolatileStatusMoveEffect(moveEffect))
                    RETURN_SCORE_MINUS(10);
                break;
            case ABILITY_SHIELDS_DOWN:
                if (IsShieldsDownProtected(battlerAtk) && IsNonVolatileStatusMoveEffect(moveEffect))
                    RETURN_SCORE_MINUS(10);
                break;
            case ABILITY_WONDER_SKIN:
                if (IS_MOVE_STATUS(move))
                    accuracy = 50;
                break;
            case ABILITY_LEAF_GUARD:
                if (AI_WeatherHasEffect() && (gBattleWeather & WEATHER_SUN_ANY)
                  && AI_DATA->defHoldEffect != HOLD_EFFECT_UTILITY_UMBRELLA
                  && IsNonVolatileStatusMoveEffect(moveEffect))
                    RETURN_SCORE_MINUS(10);
                break;
            } // def ability checks
            
            // target partner ability checks & not attacking partner
            if (isDoubleBattle)
            {
                switch (AI_DATA->defPartnerAbility)
                {
                case ABILITY_LIGHTNING_ROD:
                    if (moveType == TYPE_ELECTRIC && !IsMoveRedirectionPrevented(move, AI_DATA->atkAbility))
                        RETURN_SCORE_MINUS(20);
                    break;
                case ABILITY_STORM_DRAIN:
                    if (moveType == TYPE_WATER && !IsMoveRedirectionPrevented(move, AI_DATA->atkAbility))
                        RETURN_SCORE_MINUS(20);
                    break;
                case ABILITY_MAGIC_BOUNCE:
                    if (TestMoveFlags(move, FLAG_MAGIC_COAT_AFFECTED) && moveTarget & (MOVE_TARGET_BOTH | MOVE_TARGET_FOES_AND_ALLY | MOVE_TARGET_OPPONENTS_FIELD))
                        RETURN_SCORE_MINUS(20);
                    break;
                case ABILITY_SWEET_VEIL:
                    if (moveEffect == EFFECT_SLEEP || moveEffect == EFFECT_YAWN)
                        RETURN_SCORE_MINUS(20);
                    break;
                case ABILITY_FLOWER_VEIL:
                    if ((IS_BATTLER_OF_TYPE(battlerDef, TYPE_GRASS)) && (IsNonVolatileStatusMoveEffect(moveEffect) || IsStatLoweringMoveEffect(moveEffect)))
                        RETURN_SCORE_MINUS(10);
                    break;
                case ABILITY_AROMA_VEIL:
                    if (IsAromaVeilProtectedMove(move))
                        RETURN_SCORE_MINUS(10);
                    break;
                case ABILITY_DAZZLING:
                case ABILITY_QUEENLY_MAJESTY:
                    if (atkPriority > 0)
                        RETURN_SCORE_MINUS(10);
                    break;
                }
            } // def partner ability checks
        } // ignore def ability check
    
        // gen7+ dark type mons immune to priority->elevated moves from prankster
        #if B_PRANKSTER >= GEN_7
        if (AI_DATA->atkAbility == ABILITY_PRANKSTER && IS_BATTLER_OF_TYPE(battlerDef, TYPE_DARK) && IS_MOVE_STATUS(move)
          && !(moveTarget & (MOVE_TARGET_OPPONENTS_FIELD | MOVE_TARGET_USER)))
            RETURN_SCORE_MINUS(10);
        #endif
        
        // terrain & effect checks
        if (gFieldStatuses & STATUS_FIELD_MISTY_TERRAIN)
        {
            if (moveEffect == EFFECT_SLEEP || moveEffect == EFFECT_YAWN)
                RETURN_SCORE_MINUS(20);
        }
        
        if (gFieldStatuses & STATUS_FIELD_ELECTRIC_TERRAIN)
        {
            if (IsNonVolatileStatusMoveEffect(moveEffect) || IsConfusionMoveEffect(moveEffect))
                RETURN_SCORE_MINUS(20);
        }
        
        if (gFieldStatuses & STATUS_FIELD_PSYCHIC_TERRAIN)
        {
            if (atkPriority > 0)
                RETURN_SCORE_MINUS(20);
        }
    } // end check MOVE_TARGET_USER
    
// the following checks apply to any target (including user)
    
    // throat chop check
    if (gDisableStructs[battlerAtk].throatChopTimer && TestMoveFlags(move, FLAG_SOUND))
        return 0; // Can't even select move at all
    // heal block check
    if (gStatuses3[battlerAtk] & STATUS3_HEAL_BLOCK && IsHealBlockPreventingMove(battlerAtk, move))
        return 0; // Can't even select heal blocked move
    // primal weather check
    //TODO
    
    // check move effects
    switch (moveEffect)
    {
        case EFFECT_HIT:
        default:
            break;  // check move damage
        case EFFECT_SLEEP:
            if (!AI_CanPutToSleep(battlerAtk, battlerDef, AI_DATA->defAbility, move, AI_DATA->partnerMove))
                score -= 10;
            break;
        case EFFECT_EXPLOSION:
            if (!(AI_THINKING_STRUCT->aiFlags & AI_FLAG_WILL_SUICIDE))
                score -= 2;
            
            if (effectiveness == AI_EFFECTIVENESS_x0)
            {
                score -= 10;
            }
            else if (IsAbilityOnField(ABILITY_DAMP) && !DoesBattlerIgnoreAbilityChecks(AI_DATA->atkAbility, move))
            {
                score -= 10;
            }
            else if (CountUsablePartyMons(battlerAtk) == 0)
            {
                if (CountUsablePartyMons(battlerDef) != 0)
                    score -= 10;
                else
                    score--;
            }
            break;
        case EFFECT_DREAM_EATER:
            if (!(gBattleMons[battlerDef].status1 & STATUS1_SLEEP) || AI_DATA->defAbility == ABILITY_COMATOSE)
                score -= 8;
            else if (effectiveness == AI_EFFECTIVENESS_x0)
                score -= 10;
            break;
    // stat raising effects
        case EFFECT_ATTACK_UP:
        case EFFECT_ATTACK_UP_2:
            if (!BattlerStatCanRise(battlerAtk, AI_DATA->atkAbility, STAT_ATK) || !HasMoveWithSplit(battlerAtk, SPLIT_PHYSICAL))
                score -= 10;
            break;
        case EFFECT_DEFENSE_UP_2:
            if (move == MOVE_STUFF_CHEEKS && ItemId_GetPocket(gBattleMons[battlerAtk].item) != POCKET_BERRIES)
                score -= 10;
            //fallthrough
        case EFFECT_DEFENSE_UP:
        case EFFECT_DEFENSE_UP_3:
        case EFFECT_DEFENSE_CURL:
            if (!BattlerStatCanRise(battlerAtk, AI_DATA->atkAbility, STAT_DEF))
                score -= 10;
            break;
        case EFFECT_SPEED_UP:
        case EFFECT_SPEED_UP_2:
            if (!BattlerStatCanRise(battlerAtk, AI_DATA->atkAbility, STAT_SPEED))
                score -= 10;
            break;
        case EFFECT_SPECIAL_ATTACK_UP:
        case EFFECT_SPECIAL_ATTACK_UP_2:
        case EFFECT_SPECIAL_ATTACK_UP_3:
            if (!BattlerStatCanRise(battlerAtk, AI_DATA->atkAbility, STAT_SPATK) || !HasMoveWithSplit(battlerAtk, SPLIT_SPECIAL))
                score -= 10;
            break;
        case EFFECT_SPECIAL_DEFENSE_UP: 
        case EFFECT_SPECIAL_DEFENSE_UP_2:
            if (!BattlerStatCanRise(battlerAtk, AI_DATA->atkAbility, STAT_SPDEF))
                score -= 10;
            break;
        case EFFECT_ACCURACY_UP:
        case EFFECT_ACCURACY_UP_2:
            if (!BattlerStatCanRise(battlerAtk, AI_DATA->atkAbility, STAT_ACC))
                score -= 10;
            break;
        case EFFECT_EVASION_UP:
        case EFFECT_EVASION_UP_2:
        case EFFECT_MINIMIZE:
            if (!BattlerStatCanRise(battlerAtk, AI_DATA->atkAbility, STAT_EVASION))
                score -= 10;
            break;
        case EFFECT_COSMIC_POWER:
            if (!BattlerStatCanRise(battlerAtk, AI_DATA->atkAbility, STAT_DEF))
                score -= 10;
            else if (!BattlerStatCanRise(battlerAtk, AI_DATA->atkAbility, STAT_SPDEF))
                score -= 8;
            break;
        case EFFECT_BULK_UP:
            if (!BattlerStatCanRise(battlerAtk, AI_DATA->atkAbility, STAT_ATK) || !HasMoveWithSplit(battlerAtk, SPLIT_PHYSICAL))
                score -= 10;
            else if (!BattlerStatCanRise(battlerAtk, AI_DATA->atkAbility, STAT_DEF))
                score -= 8;
            break;
        case EFFECT_CALM_MIND:
            if (!BattlerStatCanRise(battlerAtk, AI_DATA->atkAbility, STAT_SPATK))
                score -= 10;
            else if (!BattlerStatCanRise(battlerAtk, AI_DATA->atkAbility, STAT_SPDEF))
                score -= 8;
            break;
        case EFFECT_DRAGON_DANCE:
            if (!BattlerStatCanRise(battlerAtk, AI_DATA->atkAbility, STAT_ATK) || !HasMoveWithSplit(battlerAtk, SPLIT_PHYSICAL))
                score -= 10;
            else if (!BattlerStatCanRise(battlerAtk, AI_DATA->atkAbility, STAT_SPEED))
                score -= 8;
            break;
        case EFFECT_COIL:
            if (!BattlerStatCanRise(battlerAtk, AI_DATA->atkAbility, STAT_ACC))
                score -= 10;
            else if (!BattlerStatCanRise(battlerAtk, AI_DATA->atkAbility, STAT_ATK) || !HasMoveWithSplit(battlerAtk, SPLIT_PHYSICAL))
                score -= 8;
            else if (!BattlerStatCanRise(battlerAtk, AI_DATA->atkAbility, STAT_DEF))
                score -= 6;
            break;
        case EFFECT_ATTACK_ACCURACY_UP: //hone claws
            if (AI_DATA->atkAbility != ABILITY_CONTRARY)
            {
                if (gBattleMons[battlerAtk].statStages[STAT_ATK] >= MAX_STAT_STAGE
                  && (gBattleMons[battlerAtk].statStages[STAT_ACC] >= MAX_STAT_STAGE || !HasMoveWithSplit(battlerAtk, SPLIT_PHYSICAL)))
                    score -= 10;
                break;
            }
            else
            {
                score -= 10;
            }
            break;
        case EFFECT_CHARGE:
            if (gStatuses3[battlerAtk] & STATUS3_CHARGED_UP)
                score -= 20;
            else if (!HasMoveWithType(battlerAtk, TYPE_ELECTRIC))
                score -= 10;
            else if (!BattlerStatCanRise(battlerAtk, AI_DATA->atkAbility, STAT_SPDEF))
                score -= 5;
            break;
        case EFFECT_QUIVER_DANCE:
        case EFFECT_GEOMANCY:
            if (gBattleMons[battlerAtk].statStages[STAT_SPATK] >= MAX_STAT_STAGE || !HasMoveWithSplit(battlerAtk, SPLIT_SPECIAL))
                score -= 10;
            else if (!BattlerStatCanRise(battlerAtk, AI_DATA->atkAbility, STAT_SPEED))
                score -= 8;
            else if (!BattlerStatCanRise(battlerAtk, AI_DATA->atkAbility, STAT_SPDEF))
                score -= 6;
            break;
        case EFFECT_SHIFT_GEAR:
            if (!BattlerStatCanRise(battlerAtk, AI_DATA->atkAbility, STAT_ATK) || !HasMoveWithSplit(battlerAtk, SPLIT_PHYSICAL))
                score -= 10;
            else if (!BattlerStatCanRise(battlerAtk, AI_DATA->atkAbility, STAT_SPEED))
                score -= 8;
            break;
        case EFFECT_SHELL_SMASH:
            if (AI_DATA->atkAbility == ABILITY_CONTRARY)
            {
                if (!BattlerStatCanRise(battlerAtk, AI_DATA->atkAbility, STAT_DEF))
                    score -= 10;
                else if (!BattlerStatCanRise(battlerAtk, AI_DATA->atkAbility, STAT_SPDEF))
                    score -= 8;
            }
            else
            {
                if (!BattlerStatCanRise(battlerAtk, AI_DATA->atkAbility, STAT_ATK) || !HasMoveWithSplit(battlerAtk, SPLIT_PHYSICAL))
                    score -= 10;
                else if (!BattlerStatCanRise(battlerAtk, AI_DATA->atkAbility, STAT_SPATK) || !HasMoveWithSplit(battlerAtk, SPLIT_SPECIAL))
                    score -= 8;
                else if (!BattlerStatCanRise(battlerAtk, AI_DATA->atkAbility, STAT_SPEED))
                    score -= 6;
            }
            break;
        case EFFECT_GROWTH:
        case EFFECT_ATTACK_SPATK_UP:    // work up
            if (!BattlerStatCanRise(battlerAtk, AI_DATA->atkAbility, STAT_ATK) || !HasMoveWithSplit(battlerAtk, SPLIT_PHYSICAL))
                score -= 10;
            else if (!BattlerStatCanRise(battlerAtk, AI_DATA->atkAbility, STAT_SPATK) || !HasMoveWithSplit(battlerAtk, SPLIT_SPECIAL))
                score -= 8;
            break;
        case EFFECT_ROTOTILLER:
            if (isDoubleBattle)
            {
                if (!(IS_BATTLER_OF_TYPE(battlerAtk, TYPE_GRASS)
                  && AI_IsBattlerGrounded(battlerAtk)
                  && (BattlerStatCanRise(battlerAtk, AI_DATA->atkAbility, STAT_ATK) || BattlerStatCanRise(battlerAtk, AI_DATA->atkAbility, STAT_SPATK)))
                  && !(IS_BATTLER_OF_TYPE(AI_DATA->battlerAtkPartner, TYPE_GRASS)
                  && AI_IsBattlerGrounded(AI_DATA->battlerAtkPartner)
                  && AI_DATA->atkPartnerAbility != ABILITY_CONTRARY
                  && (BattlerStatCanRise(AI_DATA->battlerAtkPartner, AI_DATA->atkPartnerAbility, STAT_ATK)
                   || BattlerStatCanRise(AI_DATA->battlerAtkPartner, AI_DATA->atkPartnerAbility, STAT_SPATK))))
                {
                    score -= 10;
                }
            }
            else if (!(IS_BATTLER_OF_TYPE(battlerAtk, TYPE_GRASS)
              && AI_IsBattlerGrounded(battlerAtk)
              && (BattlerStatCanRise(battlerAtk, AI_DATA->atkAbility, STAT_ATK) || BattlerStatCanRise(battlerAtk, AI_DATA->atkAbility, STAT_SPATK))))
            {
                score -= 10;
            }
            break;
        case EFFECT_GEAR_UP:
            if (AI_DATA->atkAbility == ABILITY_PLUS || AI_DATA->atkAbility == ABILITY_MINUS)
            {
                // same as growth, work up
                if (!BattlerStatCanRise(battlerAtk, AI_DATA->atkAbility, STAT_ATK) || !HasMoveWithSplit(battlerAtk, SPLIT_PHYSICAL))
                    score -= 10;
                else if (!BattlerStatCanRise(battlerAtk, AI_DATA->atkAbility, STAT_SPATK) || !HasMoveWithSplit(battlerAtk, SPLIT_SPECIAL))
                    score -= 8;
                break;
            }
            else if (!isDoubleBattle)
            {
                score -= 10;    // no partner and our stats wont rise, so don't use
            }

            if (isDoubleBattle)
            {
                if (AI_DATA->atkPartnerAbility == ABILITY_PLUS || AI_DATA->atkPartnerAbility == ABILITY_MINUS)
                {
                    if ((!BattlerStatCanRise(AI_DATA->battlerAtkPartner, AI_DATA->atkPartnerAbility, STAT_ATK) || !HasMoveWithSplit(battlerAtk, SPLIT_PHYSICAL))
                      && (!BattlerStatCanRise(AI_DATA->battlerAtkPartner, AI_DATA->atkPartnerAbility, STAT_SPATK) || !HasMoveWithSplit(battlerAtk, SPLIT_SPECIAL)))
                        score -= 10;
                }
                else if (AI_DATA->atkAbility != ABILITY_PLUS && AI_DATA->atkAbility != ABILITY_MINUS)
                {
                    score -= 10;    // nor our or our partner's ability is plus/minus
                }
            }
            break;
        case EFFECT_ACUPRESSURE:
            if (DoesSubstituteBlockMove(battlerAtk, battlerDef, move) || AreBattlersStatsMaxed(battlerDef))
                score -= 10;
            break;
        case EFFECT_MAGNETIC_FLUX:
            if (AI_DATA->atkAbility == ABILITY_PLUS || AI_DATA->atkAbility == ABILITY_MINUS)
            {
                if (!BattlerStatCanRise(battlerAtk, AI_DATA->atkAbility, STAT_DEF))
                    score -= 10;
                else if (!BattlerStatCanRise(battlerAtk, AI_DATA->atkAbility, STAT_SPDEF))
                    score -= 8;
            }
            else if (!isDoubleBattle)
            {
                score -= 10;    // our stats wont rise from this move
            }

            if (isDoubleBattle)
            {
                if (AI_DATA->atkPartnerAbility == ABILITY_PLUS || AI_DATA->atkPartnerAbility == ABILITY_MINUS)
                {
                    if (!BattlerStatCanRise(AI_DATA->battlerAtkPartner, AI_DATA->atkPartnerAbility, STAT_DEF))
                        score -= 10;
                    else if (!BattlerStatCanRise(AI_DATA->battlerAtkPartner, AI_DATA->atkPartnerAbility, STAT_SPDEF))
                        score -= 8;
                }
                else if (AI_DATA->atkAbility != ABILITY_PLUS && AI_DATA->atkAbility != ABILITY_MINUS)
                {
                    score -= 10;    // nor our or our partner's ability is plus/minus
                }
            }
            break;
    // stat lowering effects
        case EFFECT_ATTACK_DOWN:
        case EFFECT_ATTACK_DOWN_2:
            if (!ShouldLowerStat(battlerDef, AI_DATA->defAbility, STAT_ATK)) //|| !HasMoveWithSplit(battlerDef, SPLIT_PHYSICAL))
                score -= 10;
            else if (AI_DATA->defAbility == ABILITY_HYPER_CUTTER)
                score -= 10;
            break;
        case EFFECT_DEFENSE_DOWN:
        case EFFECT_DEFENSE_DOWN_2:
            if (!ShouldLowerStat(battlerDef, AI_DATA->defAbility, STAT_DEF))
                score -= 10;
            break;
        case EFFECT_SPEED_DOWN:
        case EFFECT_SPEED_DOWN_2:
            if (!ShouldLowerStat(battlerDef, AI_DATA->defAbility, STAT_SPEED))
                score -= 10;
            else if (AI_DATA->defAbility == ABILITY_SPEED_BOOST)
                score -= 10;
            break;
        case EFFECT_SPECIAL_ATTACK_DOWN:
        case EFFECT_SPECIAL_ATTACK_DOWN_2:
            if (!ShouldLowerStat(battlerDef, AI_DATA->defAbility, STAT_SPATK)) //|| !HasMoveWithSplit(battlerDef, SPLIT_SPECIAL))
                score -= 10;
            break;
        case EFFECT_SPECIAL_DEFENSE_DOWN:
        case EFFECT_SPECIAL_DEFENSE_DOWN_2:
            if (!ShouldLowerStat(battlerDef, AI_DATA->defAbility, STAT_SPDEF))
                score -= 10;
            break;
        case EFFECT_ACCURACY_DOWN:
        case EFFECT_ACCURACY_DOWN_2:
            if (!ShouldLowerStat(battlerDef, AI_DATA->defAbility, STAT_ACC))
                score -= 10;
            else if (AI_DATA->defAbility == ABILITY_KEEN_EYE)
                score -= 8;
            break;
        case EFFECT_EVASION_DOWN:
        case EFFECT_EVASION_DOWN_2:
            if (!ShouldLowerStat(battlerDef, AI_DATA->defAbility, STAT_EVASION))
                score -= 10;
            break;
        case EFFECT_TICKLE:
            if (!ShouldLowerStat(battlerDef, AI_DATA->defAbility, STAT_ATK))
                score -= 10;
            else if (!ShouldLowerStat(battlerDef, AI_DATA->defAbility, STAT_DEF))
                score -= 8;
            break;
        case EFFECT_VENOM_DRENCH:
            if (!(gBattleMons[battlerDef].status1 & STATUS1_PSN_ANY))
            {
                score -= 10;
            }
            else
            {
                if (!ShouldLowerStat(battlerDef, AI_DATA->defAbility, STAT_SPEED))
                    score -= 10;
                else if (!ShouldLowerStat(battlerDef, AI_DATA->defAbility, STAT_SPATK))
                    score -= 8;
                else if (!ShouldLowerStat(battlerDef, AI_DATA->defAbility, STAT_ATK))
                    score -= 6;
            }
            break;
        case EFFECT_NOBLE_ROAR:
            if (!ShouldLowerStat(battlerDef, AI_DATA->defAbility, STAT_SPATK))
                score -= 10;
            else if (!ShouldLowerStat(battlerDef, AI_DATA->defAbility, STAT_ATK))
                score -= 8;
            break;
        case EFFECT_CAPTIVATE:
            {
                u8 atkGender = GetGenderFromSpeciesAndPersonality(gBattleMons[battlerAtk].species, gBattleMons[battlerAtk].personality);
                u8 defGender = GetGenderFromSpeciesAndPersonality(gBattleMons[battlerDef].species, gBattleMons[battlerDef].personality);
                if (atkGender == MON_GENDERLESS || defGender == MON_GENDERLESS || atkGender == defGender)
                    score -= 10;
            }
            break;
    // other
        case EFFECT_HAZE:
            if (PartnerHasSameMoveEffectWithoutTarget(AI_DATA->battlerAtkPartner, move, AI_DATA->partnerMove))
            {
                score -= 10;    // partner already using haze
            }
            else
            {
                for (i = STAT_ATK; i < NUM_BATTLE_STATS; i++)
                {
                    if (gBattleMons[battlerAtk].statStages[i] > DEFAULT_STAT_STAGE || gBattleMons[AI_DATA->battlerAtkPartner].statStages[i] > DEFAULT_STAT_STAGE)
                        score -= 10;  // Don't want to reset our boosted stats
                }
                for (i = STAT_ATK; i < NUM_BATTLE_STATS; i++)
                {
                    if (gBattleMons[battlerDef].statStages[i] < DEFAULT_STAT_STAGE || gBattleMons[AI_DATA->battlerDefPartner].statStages[i] < DEFAULT_STAT_STAGE)
                        score -= 10; //Don't want to reset enemy lowered stats
                }
            }
            break;
        //case EFFECT_BIDE:
        //case EFFECT_SUPER_FANG:
        //case EFFECT_RECHARGE:
        case EFFECT_LEVEL_DAMAGE:
        case EFFECT_PSYWAVE:
        //case EFFECT_COUNTER:
        //case EFFECT_FLAIL:
        case EFFECT_RETURN:
        case EFFECT_PRESENT:
        case EFFECT_FRUSTRATION:
        case EFFECT_SONICBOOM:
        //case EFFECT_MIRROR_COAT:
        case EFFECT_SKULL_BASH:
        case EFFECT_FOCUS_PUNCH:
        case EFFECT_SUPERPOWER:
        //case EFFECT_ENDEAVOR:
        case EFFECT_LOW_KICK:
            // AI_CBM_HighRiskForDamage
            if (AI_DATA->defAbility == ABILITY_WONDER_GUARD && effectiveness < AI_EFFECTIVENESS_x2)
                score -= 10;            
            break;
        case EFFECT_COUNTER:
        case EFFECT_MIRROR_COAT:
            if (IsBattlerIncapacitated(battlerDef, AI_DATA->defAbility) || gBattleMons[battlerDef].status2 & (STATUS2_INFATUATION | STATUS2_CONFUSION))
                score--;
            if (predictedMove == MOVE_NONE || GetBattleMoveSplit(predictedMove) == SPLIT_STATUS
              || DoesSubstituteBlockMove(battlerAtk, AI_DATA->battlerDefPartner, predictedMove))
                score -= 10;
            break;
        
        case EFFECT_ROAR:
            if (CountUsablePartyMons(battlerDef) == 0)
                score -= 10;
            else if (AI_DATA->defAbility == ABILITY_SUCTION_CUPS)
                score -= 10;
            break;
        case EFFECT_TOXIC_THREAD:
            if (!ShouldLowerStat(battlerDef, AI_DATA->defAbility, STAT_SPEED))
                score--;    // may still want to just poison
            //fallthrough
        case EFFECT_POISON:
        case EFFECT_TOXIC:
            if (!AI_CanPoison(battlerAtk, battlerDef, AI_DATA->defAbility, move, AI_DATA->partnerMove))
                score -= 10;
            break;
        case EFFECT_LIGHT_SCREEN:
            if (gSideStatuses[GetBattlerSide(battlerAtk)] & SIDE_STATUS_LIGHTSCREEN
              || PartnerHasSameMoveEffectWithoutTarget(AI_DATA->battlerAtkPartner, move, AI_DATA->partnerMove))
                score -= 10;
            break;
        case EFFECT_REFLECT:
            if (gSideStatuses[GetBattlerSide(battlerAtk)] & SIDE_STATUS_REFLECT
              || PartnerHasSameMoveEffectWithoutTarget(AI_DATA->battlerAtkPartner, move, AI_DATA->partnerMove))
                score -= 10;
            break;
        case EFFECT_AURORA_VEIL:
            if (gSideStatuses[GetBattlerSide(battlerAtk)] & SIDE_STATUS_AURORA_VEIL
              || PartnerHasSameMoveEffectWithoutTarget(AI_DATA->battlerAtkPartner, move, AI_DATA->partnerMove)
              || !(gBattleWeather & WEATHER_HAIL_ANY))
                score -= 10;
            break;
        case EFFECT_OHKO:
            if (!ShouldTryOHKO(battlerAtk, battlerDef, AI_DATA->atkAbility, AI_DATA->defAbility, accuracy, move))
                score -= 10;
            break;
        case EFFECT_MIST:
            if (gSideStatuses[GetBattlerSide(battlerAtk)] & SIDE_STATUS_MIST
              || PartnerHasSameMoveEffectWithoutTarget(AI_DATA->battlerAtkPartner, move, AI_DATA->partnerMove))
                score -= 10;
            break;
        case EFFECT_FOCUS_ENERGY:
            if (gBattleMons[battlerAtk].status2 & STATUS2_FOCUS_ENERGY)
                score -= 10;
            break;
        case EFFECT_CONFUSE:
        case EFFECT_SWAGGER:
        case EFFECT_FLATTER:
            if (!AI_CanConfuse(battlerAtk, battlerDef, AI_DATA->defAbility, AI_DATA->battlerAtkPartner, move, AI_DATA->partnerMove))
                score -= 10;
            break;
        case EFFECT_PARALYZE:
            if (!AI_CanParalyze(battlerAtk, battlerDef, AI_DATA->defAbility, move, AI_DATA->partnerMove))
                score -= 10;
            break;
        case EFFECT_SUBSTITUTE:
            if (gBattleMons[battlerAtk].status2 & STATUS2_SUBSTITUTE || AI_DATA->defAbility == ABILITY_INFILTRATOR)
                score -= 8;
            else if (GetHealthPercentage(battlerAtk) <= 25)
                score -= 10;
            else if (B_SOUND_SUBSTITUTE >= GEN_6 && TestMoveFlagsInMoveset(battlerDef, FLAG_SOUND))
                score -= 8;
            break;
        case EFFECT_LEECH_SEED:
            if (gStatuses3[battlerDef] & STATUS3_LEECHSEED
             || IS_BATTLER_OF_TYPE(battlerDef, TYPE_GRASS)
             || DoesPartnerHaveSameMoveEffect(AI_DATA->battlerAtkPartner, battlerDef, move, AI_DATA->partnerMove))
                score -= 10;
            else if (AI_DATA->defAbility == ABILITY_LIQUID_OOZE)
                score -= 3;
            break;
        case EFFECT_DISABLE:
            if (gDisableStructs[battlerDef].disableTimer == 0
              && (B_MENTAL_HERB >= GEN_5 && AI_DATA->defHoldEffect != HOLD_EFFECT_CURE_ATTRACT)
              && !PartnerHasSameMoveEffectWithoutTarget(AI_DATA->battlerAtkPartner, move, AI_DATA->partnerMove))
            {
                if (GetWhoStrikesFirst(battlerAtk, battlerDef, TRUE) == 0) // attacker should go first
                {
                    if (gLastMoves[battlerDef] == MOVE_NONE || gLastMoves[battlerDef] == 0xFFFF)
                        score -= 10;    // no anticipated move to disable
                }
                else if (predictedMove == MOVE_NONE)
                {
                    score -= 10;
                }
            }
            else
            {
                score -= 10;
            }
            break;
        case EFFECT_ENCORE:
            if (gDisableStructs[battlerDef].encoreTimer == 0
              && (B_MENTAL_HERB >= GEN_5 && AI_DATA->defHoldEffect != HOLD_EFFECT_CURE_ATTRACT)
              && !DoesPartnerHaveSameMoveEffect(AI_DATA->battlerAtkPartner, battlerDef, move, AI_DATA->partnerMove))
            {
                if (GetWhoStrikesFirst(battlerAtk, battlerDef, TRUE) == 0) // attacker should go first
                {
                    if (gLastMoves[battlerDef] == MOVE_NONE || gLastMoves[battlerDef] == 0xFFFF)
                        score -= 10;    // no anticipated move to encore
                }
                else if (predictedMove == MOVE_NONE)
                {
                    score -= 10;
                }
            }
            else
            {
                score -= 10;
            }
            break;
        case EFFECT_SNORE:
        case EFFECT_SLEEP_TALK:
            if (IsWakeupTurn(battlerAtk) || (!(gBattleMons[battlerAtk].status1 & STATUS1_SLEEP) || AI_DATA->atkAbility != ABILITY_COMATOSE))
                score -= 10;    // if mon will wake up, is not asleep, or is not comatose
            break;
        case EFFECT_MEAN_LOOK:
            if (IsBattlerTrapped(battlerDef, TRUE) || DoesPartnerHaveSameMoveEffect(AI_DATA->battlerAtkPartner, battlerDef, move, AI_DATA->partnerMove))
                score -= 10;
            break;
        case EFFECT_NIGHTMARE:
            if (gBattleMons[battlerDef].status2 & STATUS2_NIGHTMARE)
                score -= 10;
            else if (!(gBattleMons[battlerDef].status1 & STATUS1_SLEEP) || AI_DATA->defAbility == ABILITY_COMATOSE)
                score -= 8;
            else if (DoesPartnerHaveSameMoveEffect(AI_DATA->battlerAtkPartner, battlerDef, move, AI_DATA->partnerMove))
                score -= 10;
            break;
        case EFFECT_CURSE:
            if (IS_BATTLER_OF_TYPE(battlerAtk, TYPE_GHOST))
            {
                if (gBattleMons[battlerDef].status2 & STATUS2_CURSED
                  || DoesPartnerHaveSameMoveEffect(AI_DATA->battlerAtkPartner, battlerDef, move, AI_DATA->partnerMove))
                    score -= 10;
                else if (GetHealthPercentage(battlerAtk) <= 50)
                    score -= 6;
            }
            else // regular curse
            {
                if (!BattlerStatCanRise(battlerAtk, AI_DATA->atkAbility, STAT_ATK) || !HasMoveWithSplit(battlerAtk, SPLIT_PHYSICAL))
                    score -= 10;
                else if (!BattlerStatCanRise(battlerAtk, AI_DATA->atkAbility, STAT_DEF))
                    score -= 8;
            }
            break;
        case EFFECT_SPIKES:
            if (gSideTimers[GetBattlerSide(battlerDef)].spikesAmount >= 3)
                score -= 10;
            else if (PartnerMoveIsSameNoTarget(AI_DATA->battlerAtkPartner, move, AI_DATA->partnerMove) 
              && gSideTimers[GetBattlerSide(battlerDef)].spikesAmount == 2)
                score -= 10; // only one mon needs to set up the last layer of Spikes
            break;
        case EFFECT_STEALTH_ROCK:
            if (gSideTimers[GetBattlerSide(battlerDef)].stealthRockAmount > 0
              || PartnerMoveIsSameNoTarget(AI_DATA->battlerAtkPartner, move, AI_DATA->partnerMove)) //Only one mon needs to set up Stealth Rocks
                score -= 10;
            break;
        case EFFECT_TOXIC_SPIKES:
            if (gSideTimers[GetBattlerSide(battlerDef)].toxicSpikesAmount >= 2)
                score -= 10;
            else if (PartnerMoveIsSameNoTarget(AI_DATA->battlerAtkPartner, move, AI_DATA->partnerMove) && gSideTimers[GetBattlerSide(battlerDef)].toxicSpikesAmount == 1)
                score -= 10; // only one mon needs to set up the last layer of Toxic Spikes
            break;
        case EFFECT_STICKY_WEB:
            if (gSideTimers[GetBattlerSide(battlerDef)].stickyWebAmount)
                score -= 10;
            else if (PartnerMoveIsSameNoTarget(AI_DATA->battlerAtkPartner, move, AI_DATA->partnerMove) && gSideTimers[GetBattlerSide(battlerDef)].stickyWebAmount)
                score -= 10; // only one mon needs to set up Sticky Web
            break;
        case EFFECT_FORESIGHT:
            if (gBattleMons[battlerDef].status2 & STATUS2_FORESIGHT)
                score -= 10;
            else if (gBattleMons[battlerDef].statStages[STAT_EVASION] <= 4
              || !(IS_BATTLER_OF_TYPE(battlerDef, TYPE_GHOST))
              || DoesPartnerHaveSameMoveEffect(AI_DATA->battlerAtkPartner, battlerDef, move, AI_DATA->partnerMove))
                score -= 9;
            break;
        case EFFECT_PERISH_SONG:
            if (isDoubleBattle)
            {
                if (CountUsablePartyMons(battlerAtk) == 0
                  && AI_DATA->atkAbility != ABILITY_SOUNDPROOF
                  && AI_DATA->atkPartnerAbility != ABILITY_SOUNDPROOF
                  && CountUsablePartyMons(FOE(battlerAtk)) >= 1)
                {
                    score -= 10; //Don't wipe your team if you're going to lose
                }
                else if ((!IsBattlerAlive(FOE(battlerAtk)) || AI_GetAbility(FOE(battlerAtk)) == ABILITY_SOUNDPROOF
                  || gStatuses3[FOE(battlerAtk)] & STATUS3_PERISH_SONG)
                  && (!IsBattlerAlive(BATTLE_PARTNER(FOE(battlerAtk))) || AI_GetAbility(BATTLE_PARTNER(FOE(battlerAtk))) == ABILITY_SOUNDPROOF
                  || gStatuses3[BATTLE_PARTNER(FOE(battlerAtk))] & STATUS3_PERISH_SONG))
                {
                    score -= 10; //Both enemies are perish songed
                }
                else if (DoesPartnerHaveSameMoveEffect(AI_DATA->battlerAtkPartner, battlerDef, move, AI_DATA->partnerMove))
                {
                    score -= 10;
                }
            }
            else
            {
                if (CountUsablePartyMons(battlerAtk) == 0 && AI_DATA->atkAbility != ABILITY_SOUNDPROOF
                  && CountUsablePartyMons(battlerDef) >= 1)
                    score -= 10;

                if (gStatuses3[FOE(battlerAtk)] & STATUS3_PERISH_SONG || AI_GetAbility(FOE(battlerAtk)) == ABILITY_SOUNDPROOF)
                    score -= 10;
            }
            break;
        case EFFECT_SANDSTORM:
            if (gBattleWeather & WEATHER_SANDSTORM_ANY //TODO | WEATHER_PRIMAL_ANY)
             || PartnerMoveEffectIsWeather(AI_DATA->battlerAtkPartner, AI_DATA->partnerMove))
                score -= 8;
            break;
        case EFFECT_SUNNY_DAY:
            if (gBattleWeather & WEATHER_SUN_ANY //TODO | WEATHER_PRIMAL_ANY)
             || PartnerMoveEffectIsWeather(AI_DATA->battlerAtkPartner, AI_DATA->partnerMove))
                score -= 8;
            break;
        case EFFECT_RAIN_DANCE:
            if (gBattleWeather & WEATHER_RAIN_ANY  //TODO  | WEATHER_PRIMAL_ANY)
             || PartnerMoveEffectIsWeather(AI_DATA->battlerAtkPartner, AI_DATA->partnerMove))
                score -= 8;
            break;
        case EFFECT_HAIL:
            if (gBattleWeather & WEATHER_HAIL_ANY //TODO | WEATHER_PRIMAL_ANY)
             || PartnerMoveEffectIsWeather(AI_DATA->battlerAtkPartner, AI_DATA->partnerMove))
                score -= 8;
            break;
        case EFFECT_ATTRACT:
            if (!AI_CanBeInfatuated(battlerAtk, battlerDef, AI_DATA->defAbility,
             GetGenderFromSpeciesAndPersonality(gBattleMons[battlerAtk].species, gBattleMons[battlerAtk].personality),
             GetGenderFromSpeciesAndPersonality(gBattleMons[battlerDef].species, gBattleMons[battlerDef].personality)))
                score -= 10;
            break;
        case EFFECT_SAFEGUARD:
            if (gSideStatuses[GetBattlerSide(battlerAtk)] & SIDE_STATUS_SAFEGUARD
              || PartnerHasSameMoveEffectWithoutTarget(AI_DATA->battlerAtkPartner, move, AI_DATA->partnerMove))
                score -= 10;
            break;
        case EFFECT_MAGNITUDE:
            if (AI_DATA->defAbility == ABILITY_LEVITATE)
                score -= 10;
            break;
        case EFFECT_PARTING_SHOT:
            if (CountUsablePartyMons(battlerAtk) == 0)
                score -= 10;
            break;
        case EFFECT_BATON_PASS:
            if (CountUsablePartyMons(battlerAtk) == 0)
                score -= 10;
            else if (gBattleMons[battlerAtk].status2 & STATUS2_SUBSTITUTE
              || (gStatuses3[battlerAtk] & (STATUS3_ROOTED | STATUS3_AQUA_RING | STATUS3_MAGNET_RISE | STATUS3_POWER_TRICK))
              || AnyStatIsRaised(battlerAtk))
                break;
            else
                score -= 6;
            break;
        case EFFECT_HIT_ESCAPE:
            break;
        case EFFECT_RAPID_SPIN:
            if ((gBattleMons[battlerAtk].status2 & STATUS2_WRAPPED) || (gStatuses3[battlerAtk] & STATUS3_LEECHSEED))
                break;  // check damage/accuracy
            //Spin checks
            if (!(gSideStatuses[GetBattlerSide(battlerAtk)] & SIDE_STATUS_HAZARDS_ANY))
                score -= 6;
            break;
        case EFFECT_BELLY_DRUM:
            if (AI_DATA->atkAbility == ABILITY_CONTRARY)
                score -= 10;
            else if (GetHealthPercentage(battlerAtk) <= 60)
                score -= 10;
            break;
        case EFFECT_FUTURE_SIGHT:
            if (gSideStatuses[GetBattlerSide(battlerDef)] & SIDE_STATUS_FUTUREATTACK
              || gSideStatuses[GetBattlerSide(battlerAtk)] & SIDE_STATUS_FUTUREATTACK)
                score -= 12;
            else
                score += 5;
            break;
        case EFFECT_TELEPORT:
            score -= 10;
            break;
        case EFFECT_FAKE_OUT:
            if (!gDisableStructs[battlerAtk].isFirstTurn)
            {
                score -= 10;
            }
            else if (move == MOVE_FAKE_OUT) // filter out first impression
            {
                if ((AI_DATA->atkHoldEffect == HOLD_EFFECT_CHOICE_BAND || AI_DATA->atkAbility == ABILITY_GORILLA_TACTICS)
                  && (CountUsablePartyMons(battlerDef) > 0 || !CanAttackerFaintTarget(battlerAtk, battlerDef, AI_THINKING_STRUCT->movesetIndex, 0)))
                {
                    if (CountUsablePartyMons(battlerAtk) == 0)
                        score -= 10; // Don't lock the attacker into Fake Out if they can't switch out afterwards.
                }
            }
            break;
        case EFFECT_STOCKPILE:
            if (gDisableStructs[battlerAtk].stockpileCounter >= 3)
                score -= 10;
            break;
        case EFFECT_SPIT_UP:
            if (gDisableStructs[battlerAtk].stockpileCounter <= 1)
                score -= 10;
            break;
        case EFFECT_SWALLOW:
            if (gDisableStructs[battlerAtk].stockpileCounter == 0)
            {
                score -= 10;
            }
            else
            {
                if (AtMaxHp(battlerAtk))
                    score -= 10;
                else if (GetHealthPercentage(battlerAtk) >= 80)
                    score -= 5; // do it if nothing better
            }
            break;
        case EFFECT_TORMENT:
            if (gBattleMons[battlerDef].status2 & STATUS2_TORMENT
              || DoesPartnerHaveSameMoveEffect(AI_DATA->battlerAtkPartner, battlerDef, move, AI_DATA->partnerMove))
            {
                score -= 10;
                break;
            }
            
            if (B_MENTAL_HERB >= GEN_5 && AI_DATA->defHoldEffect == HOLD_EFFECT_CURE_ATTRACT)
                score -= 6;
            break;
        case EFFECT_WILL_O_WISP:
            if (!AI_CanBurn(battlerAtk, battlerDef, AI_DATA->defAbility, AI_DATA->battlerAtkPartner, move, AI_DATA->partnerMove))
                score -= 10;
            break;
        case EFFECT_MEMENTO:
            if (CountUsablePartyMons(battlerAtk) == 0 || DoesPartnerHaveSameMoveEffect(AI_DATA->battlerAtkPartner, battlerDef, move, AI_DATA->partnerMove))
                score -= 10;
            else if (gBattleMons[battlerDef].statStages[STAT_ATK] == MIN_STAT_STAGE && gBattleMons[battlerDef].statStages[STAT_SPATK] == MIN_STAT_STAGE)
                score -= 10;
            break;
        case EFFECT_FOLLOW_ME:
        case EFFECT_HELPING_HAND:
            if (!isDoubleBattle
              || !IsBattlerAlive(AI_DATA->battlerAtkPartner)
              || PartnerHasSameMoveEffectWithoutTarget(AI_DATA->battlerAtkPartner, move, AI_DATA->partnerMove)
              || (AI_DATA->partnerMove != MOVE_NONE && IS_MOVE_STATUS(AI_DATA->partnerMove))
              || *(gBattleStruct->monToSwitchIntoId + AI_DATA->battlerAtkPartner) != PARTY_SIZE) //Partner is switching out.
                score -= 10;
            break;
        case EFFECT_TRICK:
        case EFFECT_KNOCK_OFF:
            if (AI_DATA->defAbility == ABILITY_STICKY_HOLD)
                score -= 10;
            break;
        case EFFECT_INGRAIN:
            if (gStatuses3[battlerAtk] & STATUS3_ROOTED)
                score -= 10;
            break;
        case EFFECT_AQUA_RING:
            if (gStatuses3[battlerAtk] & STATUS3_AQUA_RING)
                score -= 10;
            break;
        case EFFECT_RECYCLE:
            if (gBattleStruct->usedHeldItems[battlerAtk] == 0 || gBattleMons[battlerAtk].item != 0)
                score -= 10;
            break;
        case EFFECT_IMPRISON:
            if (gStatuses3[battlerAtk] & STATUS3_IMPRISONED_OTHERS)
                score -= 10;
            break;
        case EFFECT_REFRESH:
            if (!(gBattleMons[battlerDef].status1 & (STATUS1_PSN_ANY | STATUS1_BURN | STATUS1_PARALYSIS)))
                score -= 10;
            break;
        case EFFECT_PSYCHO_SHIFT:
            if (gBattleMons[battlerAtk].status1 & STATUS1_PSN_ANY && !AI_CanPoison(battlerAtk, battlerDef, AI_DATA->defAbility, move, AI_DATA->partnerMove))
                score -= 10;
            else if (gBattleMons[battlerAtk].status1 & STATUS1_BURN && !AI_CanBurn(battlerAtk, battlerDef,
              AI_DATA->defAbility, AI_DATA->battlerAtkPartner, move, AI_DATA->partnerMove))
                score -= 10;
            else if (gBattleMons[battlerAtk].status1 & STATUS1_PARALYSIS && !AI_CanParalyze(battlerAtk, battlerDef, AI_DATA->defAbility, move, AI_DATA->partnerMove))
                score -= 10;
            else if (gBattleMons[battlerAtk].status1 & STATUS1_SLEEP && !AI_CanPutToSleep(battlerAtk, battlerDef, AI_DATA->defAbility, move, AI_DATA->partnerMove))
                score -= 10;
            else
                score -= 10;    // attacker has no status to transmit
            break;
        case EFFECT_MUD_SPORT:
            if (gFieldStatuses & STATUS_FIELD_MUDSPORT
              || PartnerHasSameMoveEffectWithoutTarget(AI_DATA->battlerAtkPartner, move, AI_DATA->partnerMove))
                score -= 10;
            break;
        case EFFECT_WATER_SPORT:
            if (gFieldStatuses & STATUS_FIELD_WATERSPORT
              || PartnerHasSameMoveEffectWithoutTarget(AI_DATA->battlerAtkPartner, move, AI_DATA->partnerMove))
                score -= 10;
            break;
        case EFFECT_ABSORB:
            if (AI_DATA->defAbility == ABILITY_LIQUID_OOZE)
                score -= 6;
            break;
        case EFFECT_STRENGTH_SAP:
            if (AI_DATA->defAbility == ABILITY_CONTRARY)
                score -= 10;
            else if (!ShouldLowerStat(battlerDef, AI_DATA->defAbility, STAT_ATK))
                score -= 10;
            break;
        case EFFECT_COPYCAT:
        case EFFECT_MIRROR_MOVE:
            return AI_CheckBadMove(battlerAtk, battlerDef, predictedMove, score);
        case EFFECT_FLOWER_SHIELD:
            if (!IS_BATTLER_OF_TYPE(battlerAtk, TYPE_GRASS)
              && !(isDoubleBattle && IS_BATTLER_OF_TYPE(AI_DATA->battlerAtkPartner, TYPE_GRASS)))
                score -= 10;
            break;
        case EFFECT_AROMATIC_MIST:
            if (!isDoubleBattle || gBattleMons[AI_DATA->battlerAtkPartner].hp == 0 || !BattlerStatCanRise(AI_DATA->battlerAtkPartner, AI_DATA->atkPartnerAbility, STAT_SPDEF))
                score -= 10;
            break;
        case EFFECT_BIDE:
            if (!HasDamagingMove(battlerDef)
              || GetHealthPercentage(battlerAtk) < 30 //Close to death
              || gBattleMons[battlerDef].status1 & (STATUS1_SLEEP | STATUS1_FREEZE)) //No point in biding if can't take damage
                score -= 10;
            break;
        case EFFECT_HIT_SWITCH_TARGET:
            if (DoesPartnerHaveSameMoveEffect(AI_DATA->battlerAtkPartner, battlerDef, move, AI_DATA->partnerMove))
                score -= 10; // don't scare away pokemon twice
            else if (GetHealthPercentage(battlerDef) < 10 && GetBattlerSecondaryDamage(battlerDef))
                score -= 10;    // don't blow away mon that will faint soon
            else if (gStatuses3[battlerDef] & STATUS3_PERISH_SONG)
                score -= 10;
            break;
        case EFFECT_CONVERSION:
            //Check first move type
            if (IS_BATTLER_OF_TYPE(battlerAtk, gBattleMoves[gBattleMons[battlerAtk].moves[0]].type))
                score -= 10;
            break;
        case EFFECT_REST:
            if (!CanSleep(battlerAtk, AI_DATA->atkAbility))
                score -= 10;
            //fallthrough
        case EFFECT_RESTORE_HP:
        case EFFECT_SOFTBOILED:
        case EFFECT_ROOST:
            if (AtMaxHp(battlerAtk))
                score -= 10;
            else if (GetHealthPercentage(battlerAtk) >= 90)
                score -= 9; //No point in healing, but should at least do it if nothing better
            break;
        case EFFECT_MORNING_SUN:
        case EFFECT_SYNTHESIS:
        case EFFECT_MOONLIGHT:
            if (AI_WeatherHasEffect() && (gBattleWeather & (WEATHER_RAIN_ANY | WEATHER_SANDSTORM_ANY | WEATHER_HAIL_ANY)))
                score -= 3;
            else if (AtMaxHp(battlerAtk))
                score -= 10;
            else if (GetHealthPercentage(battlerAtk) >= 90)
                score -= 9; //No point in healing, but should at least do it if nothing better
            break;
        case EFFECT_PURIFY:
            if (!(gBattleMons[battlerDef].status1 & STATUS1_ANY))
                score -= 10;
            else if (battlerDef == AI_DATA->battlerAtkPartner)
                break; //Always heal your ally
            else if (AtMaxHp(battlerAtk))
                score -= 10;
            else if (GetHealthPercentage(battlerAtk) >= 90)
                score -= 8; //No point in healing, but should at least do it if nothing better
            break;
        case EFFECT_SUPER_FANG:
            if (GetHealthPercentage(battlerDef) < 50)
                score -= 4;
            break;
        case EFFECT_RECOIL_IF_MISS:
            if (AI_DATA->atkAbility != ABILITY_MAGIC_GUARD && accuracy < 75)
                score -= 6;
            break;
        case EFFECT_RECOIL_25:
            if (AI_DATA->atkAbility != ABILITY_MAGIC_GUARD && AI_DATA->atkAbility != ABILITY_ROCK_HEAD)
            {
                u32 recoilDmg = max(1, AI_THINKING_STRUCT->simulatedDmg[battlerAtk][battlerDef][AI_THINKING_STRUCT->movesetIndex] / 4);
                if (!ShouldUseRecoilMove(battlerAtk, battlerDef, recoilDmg, AI_THINKING_STRUCT->movesetIndex))
                    score -= 10;
                break;
            }
            break;
        case EFFECT_RECOIL_33:
        case EFFECT_RECOIL_33_STATUS:
            if (AI_DATA->atkAbility != ABILITY_MAGIC_GUARD && AI_DATA->atkAbility != ABILITY_ROCK_HEAD)
            {
                u32 recoilDmg = max(1, AI_THINKING_STRUCT->simulatedDmg[battlerAtk][battlerDef][AI_THINKING_STRUCT->movesetIndex] / 3);
                if (!ShouldUseRecoilMove(battlerAtk, battlerDef, recoilDmg, AI_THINKING_STRUCT->movesetIndex))
                    score -= 10;
                break;
            }
            break;
        case EFFECT_RECOIL_50:
            if (AI_DATA->atkAbility != ABILITY_MAGIC_GUARD && AI_DATA->atkAbility != ABILITY_ROCK_HEAD)
            {
                u32 recoilDmg = max(1, AI_THINKING_STRUCT->simulatedDmg[battlerAtk][battlerDef][AI_THINKING_STRUCT->movesetIndex] / 2);
                if (!ShouldUseRecoilMove(battlerAtk, battlerDef, recoilDmg, AI_THINKING_STRUCT->movesetIndex))
                    score -= 10;
                break;
            }
            break;
        case EFFECT_TEETER_DANCE:
            if (((gBattleMons[battlerDef].status2 & STATUS2_CONFUSION)
              || (!DoesBattlerIgnoreAbilityChecks(AI_DATA->atkAbility, move) && AI_DATA->defAbility == ABILITY_OWN_TEMPO)
              || (IsBattlerGrounded(battlerDef) && (gFieldStatuses & STATUS_FIELD_MISTY_TERRAIN))
              || (DoesSubstituteBlockMove(battlerAtk, battlerDef, move)))
             && ((gBattleMons[AI_DATA->battlerDefPartner].status2 & STATUS2_CONFUSION)
              || (!DoesBattlerIgnoreAbilityChecks(AI_DATA->atkAbility, move) && AI_DATA->defPartnerAbility == ABILITY_OWN_TEMPO)
              || (IsBattlerGrounded(AI_DATA->battlerDefPartner) && (gFieldStatuses & STATUS_FIELD_MISTY_TERRAIN))
              || (DoesSubstituteBlockMove(battlerAtk, AI_DATA->battlerDefPartner, move))))
            {
               score -= 10;
            }
            break;
        case EFFECT_TRANSFORM:
            if (gBattleMons[battlerAtk].status2 & STATUS2_TRANSFORMED
              || (gBattleMons[battlerDef].status2 & (STATUS2_TRANSFORMED | STATUS2_SUBSTITUTE))) //Leave out Illusion b/c AI is supposed to be fooled
                score -= 10;
            break;
        case EFFECT_TWO_TURNS_ATTACK:
            if (AI_DATA->atkHoldEffect != HOLD_EFFECT_POWER_HERB && CanTargetFaintAi(battlerDef, battlerAtk))
                score -= 6;
            break;
        case EFFECT_RECHARGE:
            if (AI_DATA->defAbility == ABILITY_WONDER_GUARD && effectiveness < AI_EFFECTIVENESS_x2)
                score -= 10;
            else if (AI_DATA->atkAbility != ABILITY_TRUANT
              && !CanAttackerFaintTarget(battlerAtk, battlerDef, AI_THINKING_STRUCT->movesetIndex, 0))
                score -= 2;
            break;
        case EFFECT_SPITE:
        case EFFECT_MIMIC:
            if (GetWhoStrikesFirst(battlerAtk, battlerDef, TRUE) == 0) // attacker should go first
            {
                if (gLastMoves[battlerDef] == MOVE_NONE
                  || gLastMoves[battlerDef] == 0xFFFF)
                    score -= 10;
            }
            else if (predictedMove == MOVE_NONE)
            {
                // TODO predicted move separate from gLastMoves
                score -= 10;
            }
            break;
        case EFFECT_METRONOME:
            break;
        case EFFECT_ENDEAVOR:
        case EFFECT_PAIN_SPLIT:
            if (gBattleMons[battlerAtk].hp > (gBattleMons[battlerAtk].hp + gBattleMons[battlerDef].hp) / 2)
                score -= 10;
            break;
        
        case EFFECT_CONVERSION_2:
            //TODO
            break;
        case EFFECT_LOCK_ON:
            if (gStatuses3[battlerDef] & STATUS3_ALWAYS_HITS
              || AI_DATA->atkAbility == ABILITY_NO_GUARD
              || AI_DATA->defAbility == ABILITY_NO_GUARD
              || DoesPartnerHaveSameMoveEffect(AI_DATA->battlerAtkPartner, battlerDef, move, AI_DATA->partnerMove))
                score -= 10;
            break;
        case EFFECT_LASER_FOCUS:
            if (gStatuses3[battlerAtk] & STATUS3_LASER_FOCUS)
                score -= 10;
            else if (AI_DATA->defAbility == ABILITY_SHELL_ARMOR || AI_DATA->defAbility == ABILITY_BATTLE_ARMOR)
                score -= 8;
            break;
        case EFFECT_SKETCH:
            if (gLastMoves[battlerDef] == MOVE_NONE)
                score -= 10;
            break;
        case EFFECT_DESTINY_BOND:
            if (gBattleMons[battlerDef].status2 & STATUS2_DESTINY_BOND)
                score -= 10;
            break;
        case EFFECT_FALSE_SWIPE:
            // TODO
            break;
        case EFFECT_HEAL_BELL:
            if (!AnyPartyMemberStatused(battlerAtk, TestMoveFlags(move, FLAG_SOUND)) || PartnerHasSameMoveEffectWithoutTarget(AI_DATA->battlerAtkPartner, move, AI_DATA->partnerMove))
                score -= 10;
            break;
        case EFFECT_HIT_PREVENT_ESCAPE:
            break;
        case EFFECT_ENDURE:
            if (gBattleMons[battlerAtk].hp == 1 || GetBattlerSecondaryDamage(battlerAtk)) //Don't use Endure if you'll die after using it
                score -= 10;
            break;
        case EFFECT_PROTECT:
            {
                bool32 decreased = FALSE;
                switch (move)
                {
                case MOVE_QUICK_GUARD:
                case MOVE_WIDE_GUARD:
                case MOVE_CRAFTY_SHIELD:
                    if (!isDoubleBattle)
                    {
                        score -= 10;
                        decreased = TRUE;
                    }
                    break;
                case MOVE_MAT_BLOCK:
                    if (!gDisableStructs[battlerAtk].isFirstTurn)
                    {
                        score -= 10;
                        decreased = TRUE;
                    }
                    break;
                } // move check
                
                if (decreased)
                    break;
                if (IsBattlerIncapacitated(battlerDef, AI_DATA->defAbility))
                {
                    score -= 10;
                    break;
                }

                if (move != MOVE_QUICK_GUARD
                  && move != MOVE_WIDE_GUARD
                  && move != MOVE_CRAFTY_SHIELD) //These moves have infinite usage
                {
                    if (GetBattlerSecondaryDamage(battlerAtk) >= gBattleMons[battlerAtk].hp
                      && AI_DATA->defAbility != ABILITY_MOXIE
                      && AI_DATA->defAbility != ABILITY_BEAST_BOOST)
                    {
                        score -= 10; //Don't protect if you're going to faint after protecting
                    }
                    else if (gDisableStructs[battlerAtk].protectUses == 1 && Random() % 100 < 50)
                    {
                        if (!isDoubleBattle)
                            score -= 6;
                        else
                            score -= 10; //Don't try double protecting in doubles
                    }
                    else if (gDisableStructs[battlerAtk].protectUses >= 2)
                    {
                        score -= 10;
                    }
                }

                /*if (AI_THINKING_STRUCT->aiFlags == AI_SCRIPT_CHECK_BAD_MOVE //Only basic AI
                && IS_DOUBLE_BATTLE) //Make the regular AI know how to use Protect minimally in Doubles
                {
                    u8 shouldProtect = ShouldProtect(battlerAtk, battlerDef, move);
                    if (shouldProtect == USE_PROTECT || shouldProtect == PROTECT_FROM_FOES)
                        IncreaseFoeProtectionViability(&viability, 0xFF, battlerAtk, battlerDef);
                    else if (shouldProtect == PROTECT_FROM_ALLIES)
                        IncreaseAllyProtectionViability(&viability, 0xFF);
                }*/
            }
            break;        
        case EFFECT_MIRACLE_EYE:
            if (gStatuses3[battlerDef] & STATUS3_MIRACLE_EYED)
                score -= 10;

            if (gBattleMons[battlerDef].statStages[STAT_EVASION] <= 4
              || !(IS_BATTLER_OF_TYPE(battlerDef, TYPE_DARK))
              || DoesPartnerHaveSameMoveEffect(AI_DATA->battlerAtkPartner, battlerDef, move, AI_DATA->partnerMove))
                score -= 9;
            break;
        case EFFECT_BURN_UP:
            if (!IS_BATTLER_OF_TYPE(battlerAtk, TYPE_FIRE))
                score -= 10;
            break;
        case EFFECT_DEFOG:
            if (gSideStatuses[GetBattlerSide(battlerDef)]
             & (SIDE_STATUS_REFLECT | SIDE_STATUS_LIGHTSCREEN | SIDE_STATUS_AURORA_VEIL | SIDE_STATUS_SAFEGUARD | SIDE_STATUS_MIST)
              || gSideTimers[GetBattlerSide(battlerDef)].auroraVeilTimer != 0
              || gSideStatuses[GetBattlerSide(battlerAtk)] & SIDE_STATUS_HAZARDS_ANY)
            {
                if (PartnerHasSameMoveEffectWithoutTarget(AI_DATA->battlerAtkPartner, move, AI_DATA->partnerMove))
                {
                    score -= 10; //Only need one hazards removal
                    break;
                }
            }

            if (gSideStatuses[GetBattlerSide(battlerDef)] & SIDE_STATUS_HAZARDS_ANY)
            {
                score -= 10; //Don't blow away opposing hazards
                break;
            }

            if (isDoubleBattle)
            {
                if (IsHazardMoveEffect(gBattleMoves[AI_DATA->partnerMove].effect) // partner is going to set up hazards
                  && GetWhoStrikesFirst(AI_DATA->battlerAtkPartner, battlerAtk, FALSE)) // partner is going to set up before the potential Defog
                {
                    score -= 10;
                    break; // Don't use Defog if partner is going to set up hazards
                }
            }

            // evasion check
            if (gBattleMons[battlerDef].statStages[STAT_EVASION] == MIN_STAT_STAGE
              || ((AI_DATA->defAbility == ABILITY_CONTRARY) && !IsTargetingPartner(battlerAtk, battlerDef))) // don't want to raise target stats unless its your partner
                score -= 10;
            break;
        
        case EFFECT_PSYCH_UP:   // haze stats check
            {
                for (i = STAT_ATK; i < NUM_BATTLE_STATS; i++)
                {
                    if (gBattleMons[battlerAtk].statStages[i] > DEFAULT_STAT_STAGE || gBattleMons[AI_DATA->battlerAtkPartner].statStages[i] > DEFAULT_STAT_STAGE)
                        score -= 10;  // Don't want to reset our boosted stats
                }
                for (i = STAT_ATK; i < NUM_BATTLE_STATS; i++)
                {
                    if (gBattleMons[battlerDef].statStages[i] < DEFAULT_STAT_STAGE || gBattleMons[AI_DATA->battlerDefPartner].statStages[i] < DEFAULT_STAT_STAGE)
                        score -= 10; //Don't want to copy enemy lowered stats
                }
            }
            break;
        case EFFECT_SPECTRAL_THIEF:
            break;
        case EFFECT_SOLARBEAM:
            if (AI_DATA->atkHoldEffect == HOLD_EFFECT_POWER_HERB
              || (AI_WeatherHasEffect() && gBattleWeather & WEATHER_SUN_ANY && AI_DATA->atkHoldEffect != HOLD_EFFECT_UTILITY_UMBRELLA))
                break;
            if (CanTargetFaintAi(battlerDef, battlerAtk)) //Attacker can be knocked out
                score -= 4;
            break;
        case EFFECT_SEMI_INVULNERABLE:
            if (predictedMove != MOVE_NONE
              && GetWhoStrikesFirst(battlerAtk, battlerDef, TRUE) == 1
              && gBattleMoves[predictedMove].effect == EFFECT_SEMI_INVULNERABLE)
                score -= 10; // Don't Fly/dig/etc if opponent is going to fly/dig/etc after you

            if (BattlerWillFaintFromWeather(battlerAtk, AI_DATA->atkAbility)
              && (move == MOVE_FLY || move == MOVE_BOUNCE))
                score -= 10; // Attacker will faint while in the air
            break;
        case EFFECT_HEALING_WISH:   //healing wish, lunar dance
            if (CountUsablePartyMons(battlerAtk) == 0 || DoesPartnerHaveSameMoveEffect(AI_DATA->battlerAtkPartner, battlerDef, move, AI_DATA->partnerMove))
                score -= 10;
            else if (IsPartyFullyHealedExceptBattler(battlerAtk))
                score -= 10;
            break;
        case EFFECT_FINAL_GAMBIT:
            if (CountUsablePartyMons(battlerAtk) == 0 || DoesPartnerHaveSameMoveEffect(AI_DATA->battlerAtkPartner, battlerDef, move, AI_DATA->partnerMove))
                score -= 10;
            break;
        case EFFECT_NATURE_POWER:
            return AI_CheckBadMove(battlerAtk, battlerDef, GetNaturePowerMove(), score);
        case EFFECT_TAUNT:
            if (gDisableStructs[battlerDef].tauntTimer > 0
              || DoesPartnerHaveSameMoveEffect(AI_DATA->battlerAtkPartner, battlerDef, move, AI_DATA->partnerMove))
                score--;
            break;
        case EFFECT_BESTOW:
            if (AI_DATA->atkHoldEffect == HOLD_EFFECT_NONE
              || !CanBattlerGetOrLoseItem(battlerAtk, gBattleMons[battlerAtk].item))    // AI knows its own item
                score -= 10;
            break;
        case EFFECT_ROLE_PLAY:
            if (AI_DATA->atkAbility == AI_DATA->defAbility
              || AI_DATA->defAbility == ABILITY_NONE
              || IsRolePlayBannedAbilityAtk(AI_DATA->atkAbility)
              || IsRolePlayBannedAbility(AI_DATA->defAbility))
                score -= 10;
            else if (IsAbilityOfRating(AI_DATA->atkAbility, 5))
                score -= 4;
            break;
        case EFFECT_WISH:
            if (gWishFutureKnock.wishCounter[battlerAtk] != 0)
                score -= 10;
            break;
        case EFFECT_ASSIST:
            if (CountUsablePartyMons(battlerAtk) == 0)
                score -= 10;    // no teammates to assist from
            break;
        case EFFECT_MAGIC_COAT:
            if (!TestMoveFlagsInMoveset(battlerDef, FLAG_MAGIC_COAT_AFFECTED))
                score -= 10;
            break;
        case EFFECT_BELCH:
            if (ItemId_GetPocket(gBattleStruct->usedHeldItems[battlerAtk]) != POCKET_BERRIES)
                score -= 10; // attacker has not consumed a berry
            break;
        case EFFECT_YAWN:
            if (gStatuses3[battlerDef] & STATUS3_YAWN)
                score -= 10;
            else if (!AI_CanPutToSleep(battlerAtk, battlerDef, AI_DATA->defAbility, move, AI_DATA->partnerMove))
                score -= 10;
            break;
        case EFFECT_SKILL_SWAP:
            if (AI_DATA->atkAbility == ABILITY_NONE || AI_DATA->defAbility == ABILITY_NONE
              || IsSkillSwapBannedAbility(AI_DATA->atkAbility) || IsSkillSwapBannedAbility(AI_DATA->defAbility))
                score -= 10;
            break;
        case EFFECT_WORRY_SEED:
            if (AI_DATA->defAbility == ABILITY_INSOMNIA
              || IsWorrySeedBannedAbility(AI_DATA->defAbility))
                score -= 10;
            break;
        case EFFECT_GASTRO_ACID:
            if (gStatuses3[battlerDef] & STATUS3_GASTRO_ACID
              || IsGastroAcidBannedAbility(AI_DATA->defAbility))
                score -= 10;
            break;
        case EFFECT_ENTRAINMENT:
            if (AI_DATA->atkAbility == ABILITY_NONE
              || IsEntrainmentBannedAbilityAttacker(AI_DATA->atkAbility)
              || IsEntrainmentTargetOrSimpleBeamBannedAbility(AI_DATA->defAbility))
                score -= 10;
            break;
        case EFFECT_CORE_ENFORCER:
            break;
        case EFFECT_SIMPLE_BEAM:
            if (AI_DATA->defAbility == ABILITY_SIMPLE
              || IsEntrainmentTargetOrSimpleBeamBannedAbility(AI_DATA->defAbility))
                score -= 10;
            break;
        case EFFECT_SNATCH:
            if (!TestMoveFlagsInMoveset(battlerDef, FLAG_SNATCH_AFFECTED)
              || PartnerHasSameMoveEffectWithoutTarget(AI_DATA->battlerAtkPartner, move, AI_DATA->partnerMove))
                score -= 10;
            break;
        case EFFECT_POWER_TRICK:
            if (IsTargetingPartner(battlerAtk, battlerDef))
                score -= 10;
            else if (gBattleMons[battlerAtk].defense >= gBattleMons[battlerAtk].attack && !HasMoveWithSplit(battlerAtk, SPLIT_PHYSICAL))
                score -= 10;
            break;
        case EFFECT_POWER_SWAP: // Don't use if attacker's stat stages are higher than opponents
            if (IsTargetingPartner(battlerAtk, battlerDef))
                score -= 10;
            else if (gBattleMons[battlerAtk].statStages[STAT_ATK] >= gBattleMons[battlerDef].statStages[STAT_ATK]
              && gBattleMons[battlerAtk].statStages[STAT_SPATK] >= gBattleMons[battlerDef].statStages[STAT_SPATK])
                score -= 10;
            break;
        case EFFECT_GUARD_SWAP: // Don't use if attacker's stat stages are higher than opponents
            if (IsTargetingPartner(battlerAtk, battlerDef))
                score -= 10;
            else if (gBattleMons[battlerAtk].statStages[STAT_DEF] >= gBattleMons[battlerDef].statStages[STAT_DEF]
              && gBattleMons[battlerAtk].statStages[STAT_SPDEF] >= gBattleMons[battlerDef].statStages[STAT_SPDEF])
                score -= 10;
            break;
        case EFFECT_SPEED_SWAP:
            if (IsTargetingPartner(battlerAtk, battlerDef))
            {
                score -= 10;
            }
            else
            {
                if (gFieldStatuses & STATUS_FIELD_TRICK_ROOM && (gBattleMons[battlerAtk].speed <= gBattleMons[battlerDef].speed))
                    score -= 10;
                else if (gBattleMons[battlerAtk].speed >= gBattleMons[battlerDef].speed)
                    score -= 10;
            }
            break;
        case EFFECT_HEART_SWAP:
            if (IsTargetingPartner(battlerAtk, battlerDef))
            {
                score -= 10;
            }
            else
            {
                u32 atkPositiveStages = CountPositiveStatStages(battlerAtk);
                u32 atkNegativeStages = CountNegativeStatStages(battlerAtk);
                u32 defPositiveStages = CountPositiveStatStages(battlerDef);
                u32 defNegativeStages = CountNegativeStatStages(battlerDef);
                
                if (atkPositiveStages >= defPositiveStages && atkNegativeStages <= defNegativeStages)
                    score -= 10;
                break;
            }
            break;
        case EFFECT_POWER_SPLIT:
            if (IsTargetingPartner(battlerAtk, battlerDef))
            {
                score -= 10;
            }
            else
            {
                u8 atkAttack = gBattleMons[battlerAtk].attack;
                u8 defAttack = gBattleMons[battlerDef].attack;
                u8 atkSpAttack = gBattleMons[battlerAtk].spAttack;
                u8 defSpAttack = gBattleMons[battlerDef].spAttack;

                if (atkAttack + atkSpAttack >= defAttack + defSpAttack) // Combined attacker stats are > than combined target stats
                    score -= 10;
                break;
            }
            break;
        case EFFECT_GUARD_SPLIT:
            if (IsTargetingPartner(battlerAtk, battlerDef))
            {
                score -= 10;
            }
            else
            {
                u8 atkDefense = gBattleMons[battlerAtk].defense;
                u8 defDefense = gBattleMons[battlerDef].defense;
                u8 atkSpDefense = gBattleMons[battlerAtk].spDefense;
                u8 defSpDefense = gBattleMons[battlerDef].spDefense;

                if (atkDefense + atkSpDefense >= defDefense + defSpDefense) //Combined attacker stats are > than combined target stats
                    score -= 10;
                break;
            }
            break;
        case EFFECT_ME_FIRST:
            if (predictedMove != MOVE_NONE)
            {
                if (GetWhoStrikesFirst(battlerAtk, battlerDef, TRUE) == 1)
                    score -= 10;    // Target is predicted to go first, Me First will fail
                else
                    return AI_CheckBadMove(battlerAtk, battlerDef, predictedMove, score);
            }
            else
            {
                score -= 10; //Target is predicted to switch most likely
            }
            break;
        case EFFECT_NATURAL_GIFT:
            if (AI_DATA->atkAbility == ABILITY_KLUTZ
              || gFieldStatuses & STATUS_FIELD_MAGIC_ROOM
              || GetPocketByItemId(gBattleMons[battlerAtk].item) != POCKET_BERRIES)
                score -= 10;
            break;
        case EFFECT_GRASSY_TERRAIN:
            if (PartnerMoveEffectIsTerrain(AI_DATA->battlerAtkPartner, AI_DATA->partnerMove) || gFieldStatuses & STATUS_FIELD_GRASSY_TERRAIN)
                score -= 10;
            break;
        case EFFECT_ELECTRIC_TERRAIN:
            if (PartnerMoveEffectIsTerrain(AI_DATA->battlerAtkPartner, AI_DATA->partnerMove) || gFieldStatuses & STATUS_FIELD_ELECTRIC_TERRAIN)
                score -= 10;
            break;
        case EFFECT_PSYCHIC_TERRAIN:
            if (PartnerMoveEffectIsTerrain(AI_DATA->battlerAtkPartner, AI_DATA->partnerMove) || gFieldStatuses & STATUS_FIELD_PSYCHIC_TERRAIN)
                score -= 10;
            break;
        case EFFECT_MISTY_TERRAIN:
            if (PartnerMoveEffectIsTerrain(AI_DATA->battlerAtkPartner, AI_DATA->partnerMove) || gFieldStatuses & STATUS_FIELD_MISTY_TERRAIN)
                score -= 10;
            break;
        case EFFECT_PLEDGE:
            if (isDoubleBattle && gBattleMons[AI_DATA->battlerAtkPartner].hp > 0)
            {
                if (AI_DATA->partnerMove != MOVE_NONE
                  && gBattleMoves[AI_DATA->partnerMove].effect == EFFECT_PLEDGE
                  && move != AI_DATA->partnerMove) // Different pledge moves
                {
                    if (gBattleMons[AI_DATA->battlerAtkPartner].status1 & (STATUS1_SLEEP | STATUS1_FREEZE))
                    // && gBattleMons[AI_DATA->battlerAtkPartner].status1 != 1) // Will wake up this turn - how would AI know
                        score -= 10; // Don't use combo move if your partner will cause failure
                }
            }
            break;
        case EFFECT_TRICK_ROOM:
            if (PartnerMoveIs(AI_DATA->battlerAtkPartner, AI_DATA->partnerMove, MOVE_TRICK_ROOM))
            {
                score -= 10;
            }
            else if (gFieldStatuses & STATUS_FIELD_TRICK_ROOM) // Trick Room Up
            {
                if (GetBattlerSideSpeedAverage(battlerAtk) < GetBattlerSideSpeedAverage(battlerDef)) // Attacker side slower than target side
                    score -= 10; // Keep the Trick Room up
            }
            else
            {
                if (GetBattlerSideSpeedAverage(battlerAtk) >= GetBattlerSideSpeedAverage(battlerDef)) // Attacker side faster than target side
                    score -= 10; // Keep the Trick Room down
            }
            break;
        case EFFECT_MAGIC_ROOM:
            if (gFieldStatuses & STATUS_FIELD_MAGIC_ROOM || PartnerMoveIsSameNoTarget(AI_DATA->battlerAtkPartner, move, AI_DATA->partnerMove))
                score -= 10;
            break;
        case EFFECT_WONDER_ROOM:
            if (gFieldStatuses & STATUS_FIELD_WONDER_ROOM || PartnerMoveIsSameNoTarget(AI_DATA->battlerAtkPartner, move, AI_DATA->partnerMove))
                score -= 10;
            break;
        case EFFECT_GRAVITY:
            if ((gFieldStatuses & STATUS_FIELD_GRAVITY
              && !IS_BATTLER_OF_TYPE(battlerAtk, TYPE_FLYING)
              && AI_DATA->atkHoldEffect != HOLD_EFFECT_AIR_BALLOON) // Should revert Gravity in this case
              || PartnerMoveIsSameNoTarget(AI_DATA->battlerAtkPartner, move, AI_DATA->partnerMove))
                score -= 10;
            break;
        case EFFECT_ION_DELUGE:
            if (gFieldStatuses & STATUS_FIELD_ION_DELUGE
              || PartnerMoveIsSameNoTarget(AI_DATA->battlerAtkPartner, move, AI_DATA->partnerMove))
                score -= 10;
            break;
        case EFFECT_FLING:
            if (!CanFling(battlerAtk))
            {
                score -= 10;
            }
            else
            {
                /* TODO Fling
                u8 effect = gFlingTable[gBattleMons[battlerAtk].item].effect;
                switch (effect)
                {
                case MOVE_EFFECT_BURN:
                    if (!AI_CanBurn(battlerAtk, battlerDef, AI_DATA->battlerAtkPartner, move, AI_DATA->partnerMove))
                        score -= 10;
                    break;
                case MOVE_EFFECT_PARALYSIS:
                    if (!AI_CanParalyze(battlerAtk, battlerDef, AI_DATA->defAbility, move, AI_DATA->partnerMove))
                        score -= 10;
                    break;
                case MOVE_EFFECT_POISON:
                    if (!AI_CanPoison(battlerAtk, battlerDef, AI_DATA->defAbility, move, AI_DATA->partnerMove))
                        score -= 10;
                    break;
                case MOVE_EFFECT_TOXIC:
                    if (!AI_CanPoison(battlerAtk, battlerDef, AI_DATA->defAbility, move, AI_DATA->partnerMove))
                        score -= 10;
                    break;
                case MOVE_EFFECT_FREEZE:
                    if (!CanBeFrozen(battlerDef, TRUE)
                     || MoveBlockedBySubstitute(move, battlerAtk, battlerDef))
                        score -= 10;
                    break;
                }*/
            }
            break;
        case EFFECT_EMBARGO:
            if (AI_DATA->defAbility == ABILITY_KLUTZ
              || gFieldStatuses & STATUS_FIELD_MAGIC_ROOM
              || gDisableStructs[battlerDef].embargoTimer != 0
              || PartnerMoveIsSameAsAttacker(AI_DATA->battlerAtkPartner, battlerDef, move, AI_DATA->partnerMove))
                score -= 10;
            break;
        case EFFECT_POWDER:
            if (!HasMoveWithType(battlerDef, TYPE_FIRE)
              || PartnerMoveIsSameAsAttacker(AI_DATA->battlerAtkPartner, battlerDef, move, AI_DATA->partnerMove))
                score -= 10;
            break;
        case EFFECT_TELEKINESIS:
            if (gStatuses3[battlerDef] & (STATUS3_TELEKINESIS | STATUS3_ROOTED | STATUS3_SMACKED_DOWN)
              || gFieldStatuses & STATUS_FIELD_GRAVITY
              || AI_DATA->defHoldEffect == HOLD_EFFECT_IRON_BALL
              || IsTelekinesisBannedSpecies(gBattleMons[battlerDef].species)
              || PartnerMoveIsSameAsAttacker(AI_DATA->battlerAtkPartner, battlerDef, move, AI_DATA->partnerMove))
                score -= 10;
            break;
        case EFFECT_THROAT_CHOP:
            break;
        case EFFECT_HEAL_BLOCK:
            if (gDisableStructs[battlerDef].healBlockTimer != 0
              || PartnerMoveIsSameAsAttacker(AI_DATA->battlerAtkPartner, battlerDef, move, AI_DATA->partnerMove))
                score -= 10;
            break;
        case EFFECT_SOAK:
            if (PartnerMoveIsSameAsAttacker(AI_DATA->battlerAtkPartner, battlerDef, move, AI_DATA->partnerMove)
              || (gBattleMons[battlerDef].type1 == TYPE_WATER
              && gBattleMons[battlerDef].type2 == TYPE_WATER
              && gBattleMons[battlerDef].type3 == TYPE_MYSTERY))
                score -= 10;    // target is already water-only
            break;
        case EFFECT_THIRD_TYPE:
            switch (move)
            {
            case MOVE_TRICK_OR_TREAT:
                if (IS_BATTLER_OF_TYPE(battlerDef, TYPE_GHOST) || PartnerMoveIsSameAsAttacker(AI_DATA->battlerAtkPartner, battlerDef, move, AI_DATA->partnerMove))
                    score -= 10;
                break;
            case MOVE_FORESTS_CURSE:
                if (IS_BATTLER_OF_TYPE(battlerDef, TYPE_GRASS) || PartnerMoveIsSameAsAttacker(AI_DATA->battlerAtkPartner, battlerDef, move, AI_DATA->partnerMove))
                    score -= 10;
                break;
            }
            break;
        case EFFECT_HIT_ENEMY_HEAL_ALLY:    // pollen puff
            if (IsTargetingPartner(battlerAtk, battlerDef))
            {
                if (AtMaxHp(battlerDef))
                    score -= 10;
                else if (gBattleMons[battlerDef].hp > gBattleMons[battlerDef].maxHP / 2)
                    score -= 5;
                break;
            }
            // fallthrough
        case EFFECT_HEAL_PULSE: // and floral healing
            if (!IsTargetingPartner(battlerAtk, battlerDef)) // Don't heal enemies
            {
                score -= 10;
            }
            else
            {
                if (AtMaxHp(battlerDef))
                    score -= 10;
                else if (gBattleMons[battlerDef].hp > gBattleMons[battlerDef].maxHP / 2)
                    score -= 5;
            }
            break;
        case EFFECT_ELECTRIFY:
            if (GetWhoStrikesFirst(battlerAtk, battlerDef, TRUE) == 0
              //|| GetMoveTypeSpecial(battlerDef, predictedMove) == TYPE_ELECTRIC // Move will already be electric type
              || PartnerMoveIsSameAsAttacker(AI_DATA->battlerAtkPartner, battlerDef, move, AI_DATA->partnerMove))
                score -= 10;
            break;
        case EFFECT_TOPSY_TURVY:
            if (!IsTargetingPartner(battlerAtk, battlerDef))
            {
                u8 targetPositiveStages = CountPositiveStatStages(battlerDef);
                u8 targetNegativeStages = CountNegativeStatStages(battlerDef);

                if (targetPositiveStages == 0 //No good stat changes to make bad
                  || PartnerMoveIsSameAsAttacker(AI_DATA->battlerAtkPartner, battlerDef, move, AI_DATA->partnerMove))
                    score -= 10;

                else if (targetNegativeStages < targetPositiveStages)
                    score -= 5; //More stages would be made positive than negative
            }
            break;
        case EFFECT_FAIRY_LOCK:
            if ((gFieldStatuses & STATUS_FIELD_FAIRY_LOCK) || PartnerMoveIsSameNoTarget(AI_DATA->battlerAtkPartner, move, AI_DATA->partnerMove))
                score -= 10;
            break;
        case EFFECT_DO_NOTHING:
            score -= 10;
            break;
        case EFFECT_INSTRUCT:
            {
                u16 instructedMove;
                if (GetWhoStrikesFirst(battlerAtk, battlerDef, TRUE) == 1)
                    instructedMove = predictedMove;
                else
                    instructedMove = gLastMoves[battlerDef];

                if (instructedMove == MOVE_NONE
                  || IsInstructBannedMove(instructedMove)
                  || MoveRequiresRecharging(instructedMove)
                  || MoveCallsOtherMove(instructedMove)
                  #ifdef ITEM_Z_RING
                  || (IsZMove(instructedMove))
                  #endif
                  || (gLockedMoves[battlerDef] != 0 && gLockedMoves[battlerDef] != 0xFFFF)
                  || gBattleMons[battlerDef].status2 & STATUS2_MULTIPLETURNS
                  || PartnerMoveIsSameAsAttacker(AI_DATA->battlerAtkPartner, battlerDef, move, AI_DATA->partnerMove))
                {
                    score -= 10;
                }
                else if (isDoubleBattle)
                {
                    if (!IsTargetingPartner(battlerAtk, battlerDef))
                        score -= 10;
                }
                else
                {
                    if (gBattleMoves[instructedMove].target & (MOVE_TARGET_SELECTED
                                                             | MOVE_TARGET_DEPENDS
                                                             | MOVE_TARGET_RANDOM
                                                             | MOVE_TARGET_BOTH
                                                             | MOVE_TARGET_FOES_AND_ALLY
                                                             | MOVE_TARGET_OPPONENTS_FIELD)
                      && instructedMove != MOVE_MIND_BLOWN && instructedMove != MOVE_STEEL_BEAM)
                        score -= 10; //Don't force the enemy to attack you again unless it can kill itself with Mind Blown
                    else if (instructedMove != MOVE_MIND_BLOWN)
                        score -= 5; //Do something better
                }
            }
            break;
        case EFFECT_QUASH:
            if (!isDoubleBattle
            || GetWhoStrikesFirst(battlerAtk, battlerDef, TRUE) == 1
            || PartnerMoveIsSameAsAttacker(AI_DATA->battlerAtkPartner, battlerDef, move, AI_DATA->partnerMove))
                score -= 10;
            break;
        case EFFECT_AFTER_YOU:
            if (!IsTargetingPartner(battlerAtk, battlerDef)
              || !isDoubleBattle
              || GetWhoStrikesFirst(battlerAtk, battlerDef, TRUE) == 1
              || PartnerMoveIsSameAsAttacker(AI_DATA->battlerAtkPartner, battlerDef, move, AI_DATA->partnerMove))
                score -= 10;
            break;
        case EFFECT_SUCKER_PUNCH:
            if (predictedMove != MOVE_NONE)
            {
                if (IS_MOVE_STATUS(predictedMove) || GetWhoStrikesFirst(battlerAtk, battlerDef, TRUE) == 1) // opponent going first
                    score -= 10;
            }
            break;
        case EFFECT_TAILWIND:
            if (gSideTimers[GetBattlerSide(battlerAtk)].tailwindTimer != 0
              || PartnerMoveIs(AI_DATA->battlerAtkPartner, AI_DATA->partnerMove, MOVE_TAILWIND)
              || (gFieldStatuses & STATUS_FIELD_TRICK_ROOM && gFieldTimers.trickRoomTimer > 1)) // Trick Room active and not ending this turn
                score -= 10;
            break;
        case EFFECT_LUCKY_CHANT:
            if (gSideTimers[GET_BATTLER_SIDE(battlerAtk)].luckyChantTimer != 0
              || PartnerMoveIsSameNoTarget(AI_DATA->battlerAtkPartner, move, AI_DATA->partnerMove))
                score -= 10;
            break;
        case EFFECT_MAGNET_RISE:
            if (gFieldStatuses & STATUS_FIELD_GRAVITY
              ||  gDisableStructs[battlerAtk].magnetRiseTimer != 0
              || AI_DATA->atkHoldEffect == HOLD_EFFECT_IRON_BALL
              || gStatuses3[battlerAtk] & (STATUS3_ROOTED | STATUS3_MAGNET_RISE | STATUS3_SMACKED_DOWN)
              || !IsBattlerGrounded(battlerAtk))
                score -= 10;
            break;
        case EFFECT_CAMOUFLAGE:
            if (!CanCamouflage(battlerAtk))
                score -= 10;
            break;
        case EFFECT_LAST_RESORT:
            if (!CanUseLastResort(battlerAtk))
                score -= 10;
            break;
        case EFFECT_SYNCHRONOISE:
            //Check holding ring target or is of same type
            if (AI_DATA->defHoldEffect == HOLD_EFFECT_RING_TARGET
              || IS_BATTLER_OF_TYPE(battlerDef, gBattleMons[battlerAtk].type1)
              || IS_BATTLER_OF_TYPE(battlerDef, gBattleMons[battlerAtk].type2)
              || IS_BATTLER_OF_TYPE(battlerDef, gBattleMons[battlerAtk].type3))
                break;
            else
                score -= 10;
            break;
        case EFFECT_ERUPTION:
            if (effectiveness <= AI_EFFECTIVENESS_x0_5)
                score--;
            if (GetHealthPercentage(battlerDef) < 50)
                score--;
            break;
        case EFFECT_VITAL_THROW:
            if (IsAiFaster(AI_CHECK_FASTER) && GetHealthPercentage(battlerAtk) < 40)
                score--;    // don't want to move last
            break;
        case EFFECT_FLAIL:
            if (GetWhoStrikesFirst(battlerAtk, battlerDef, TRUE) == 1 // opponent should go first
              || GetHealthPercentage(battlerAtk) > 50)
                score -= 4;
            break;
        //TODO
        //case EFFECT_PLASMA_FISTS:
            //break;
        //case EFFECT_SHELL_TRAP:
            //break;
        //case EFFECT_BEAK_BLAST:
            //break;
        /*case EFFECT_SKY_DROP:
            if (IS_BATTLER_OF_TYPE(battlerDef, TYPE_FLYING))
                score -= 10;
            if (WillFaintFromWeather(battlerAtk)
            ||  MoveBlockedBySubstitute(move, battlerAtk, battlerDef)
            ||  GetSpeciesWeight(gBattleMons[battlerDef].species, AI_DATA->defAbility, AI_DATA->defHoldEffect, battlerDef, TRUE) >= 2000) //200.0 kg
                score -= 10;
            break;
            */
        /*case EFFECT_NO_RETREAT:
            if (TrappedByNoRetreat(battlerAtk))
                score -= 10;
            break;
        case EFFECT_EXTREME_EVOBOOST:
            if (MainStatsMaxed(battlerAtk))
                score -= 10;
            break;
        case EFFECT_CLANGOROUS_SOUL:
            if (gBattleMons[battlerAtk].hp <= gBattleMons[battlerAtk].maxHP / 3)
                score -= 10;
            break;*/
    } // move effect checks
    
    if (score < 0)
        score = 0;
    
    return score;
}

static s16 AI_TryToFaint(u8 battlerAtk, u8 battlerDef, u16 move, s16 score)
{    
    if (IsTargetingPartner(battlerAtk, battlerDef))
        return score;
    
    if (gBattleMoves[move].power == 0)
        return score;   // can't make anything faint with no power
    
    if (CanAttackerFaintTarget(battlerAtk, battlerDef, AI_THINKING_STRUCT->movesetIndex, 0) && gBattleMoves[move].effect != EFFECT_EXPLOSION)
    {
        // this move can faint the target
        if (GetWhoStrikesFirst(battlerAtk, battlerDef, TRUE) == 0 || GetMovePriority(battlerAtk, move) > 0)
            score += 4; // we go first or we're using priority move
        else
            score += 2;
    }
    else
    {
        // this move isn't expected to faint the target
        if (TestMoveFlags(move, FLAG_HIGH_CRIT))
            score += 2; // crit makes it more likely to make them faint
        
        if (GetMoveDamageResult(move) == MOVE_POWER_DISCOURAGED)
            score--;
        
        switch (AI_GetMoveEffectiveness(move, battlerAtk, battlerDef))
        {
        case AI_EFFECTIVENESS_x4:
            score += 4;
            break;
        case AI_EFFECTIVENESS_x2:
            if (AI_RandLessThan(176))
                score += 2;
            else
                score++;
            break;
        }
    }
    
    //AI_TryToFaint_CheckIfDanger
    if (!IsAiFaster(AI_CHECK_FASTER) && CanTargetFaintAi(battlerDef, battlerAtk))
    { // AI_TryToFaint_Danger
        if (GetMoveDamageResult(move) != MOVE_POWER_BEST)
            score--;
        else
            score++;
    }
    
    return score;
}

// double battle logic
static s16 AI_DoubleBattle(u8 battlerAtk, u8 battlerDef, u16 move, s16 score)
{
    // move data
    u8 moveType = gBattleMoves[move].type;
    u16 effect = gBattleMoves[move].effect;
    u8 target = gBattleMoves[move].target;
    // ally data
    u8 battlerAtkPartner = AI_DATA->battlerAtkPartner;
    u16 atkPartnerAbility = AI_DATA->atkPartnerAbility;
    u16 atkPartnerHoldEffect = AI_DATA->atkPartnerHoldEffect;
    bool32 partnerProtecting = (gBattleMoves[AI_DATA->partnerMove].effect == EFFECT_PROTECT);
    bool32 attackerHasBadAbility = (GetAbilityRating(AI_DATA->atkAbility) < 0);
    bool32 partnerHasBadAbility = (GetAbilityRating(atkPartnerAbility) < 0);
    u16 predictedMove = gLastMoves[battlerDef]; //for now
        
    // check what effect partner is using
    if (AI_DATA->partnerMove != 0)
    {
        switch (gBattleMoves[AI_DATA->partnerMove].effect)
        {
        case EFFECT_HELPING_HAND:
            if (IS_MOVE_STATUS(move))
                score += 5;
            break;
        case EFFECT_PERISH_SONG:
            if (!(gBattleMons[battlerDef].status2 & (STATUS2_ESCAPE_PREVENTION | STATUS2_WRAPPED)))
            {
                if (IsTrappingMoveEffect(effect) || predictedMove == MOVE_INGRAIN)
                    score++;
            }
            break;
        case EFFECT_ALWAYS_CRIT:
            // Ally decided to use Frost Breath on us. we must have Anger Point as our ability
            if (AI_DATA->atkAbility == ABILITY_ANGER_POINT)
            {
                if (GetWhoStrikesFirst(battlerAtk, battlerAtkPartner, TRUE) == 1)   // partner moving first
                {
                    // discourage raising our attack since it's about to be maxed out
                    if (IsAttackBoostMoveEffect(effect))
                        score -= 3;
                    // encourage moves hitting multiple opponents
                    if (!IS_MOVE_STATUS(move) && (gBattleMoves[move].target & (MOVE_TARGET_BOTH | MOVE_TARGET_FOES_AND_ALLY)))
                        score += 3;
                }
            }
            break;
        }
    } // check partner move effect
    
    
    // consider our move effect relative to partner state
    switch (effect)
    {
    case EFFECT_HELPING_HAND:
        if (AI_DATA->partnerMove != 0 && !HasDamagingMove(battlerAtkPartner))
            score -= 5;
        break;
    case EFFECT_PERISH_SONG:
        if (AI_DATA->partnerMove != 0 && HasTrappingMoveEffect(battlerAtkPartner))
            score++;
        break;
    case EFFECT_MAGNET_RISE:
        if (IsBattlerGrounded(battlerAtk)
          && (HasMove(battlerAtkPartner, MOVE_EARTHQUAKE) || HasMove(battlerAtkPartner, MOVE_MAGNITUDE))
          && (AI_GetMoveEffectiveness(MOVE_EARTHQUAKE, battlerAtk, battlerAtkPartner) != AI_EFFECTIVENESS_x0)) // Doesn't resist ground move
        {
            RETURN_SCORE_PLUS(2);   // partner has earthquake or magnitude -> good idea to use magnet rise
        }
        break;
    } // our effect relative to partner
    
    
    // consider global move effects
    switch (effect)
    {
    case EFFECT_SANDSTORM:
        if (ShouldSetSandstorm(battlerAtkPartner, atkPartnerAbility, atkPartnerHoldEffect))
        {
            RETURN_SCORE_PLUS(1);   // our partner benefits from sandstorm
        }
        break;
    case EFFECT_RAIN_DANCE:
        if (ShouldSetRain(battlerAtkPartner, atkPartnerAbility, atkPartnerHoldEffect))
        {
            RETURN_SCORE_PLUS(1);   // our partner benefits from rain
        }
        break;
    case EFFECT_SUNNY_DAY:
        if (ShouldSetSun(battlerAtkPartner, atkPartnerAbility, atkPartnerHoldEffect))
        {
            RETURN_SCORE_PLUS(1);   // our partner benefits from sun
        }
        break;
    case EFFECT_HAIL:
        if (IsBattlerAlive(battlerAtkPartner)
         && ShouldSetHail(battlerAtkPartner, atkPartnerAbility, atkPartnerHoldEffect))
        {
            RETURN_SCORE_PLUS(2);   // our partner benefits from hail
        }
        break;
    } // global move effect check
    
    
    // check specific target
    if (IsTargetingPartner(battlerAtk, battlerDef))
    {
        if (GetMoveDamageResult(move) == MOVE_POWER_DISCOURAGED)
        {
            // partner ability checks
            if (!partnerProtecting && gBattleMoves[move].target != MOVE_TARGET_BOTH && !DoesBattlerIgnoreAbilityChecks(AI_DATA->atkAbility, move))
            {
                switch (atkPartnerAbility)
                {
                case ABILITY_VOLT_ABSORB:
                    if (!(AI_THINKING_STRUCT->aiFlags & AI_FLAG_HP_AWARE))
                    {
                        RETURN_SCORE_MINUS(10);
                    }
                    break;  // handled in AI_HPAware
                case ABILITY_MOTOR_DRIVE:
                    if (moveType == TYPE_ELECTRIC && BattlerStatCanRise(battlerAtkPartner, atkPartnerAbility, STAT_SPEED))
                    {
                        RETURN_SCORE_PLUS(1);
                    }
                    break;
                case ABILITY_LIGHTNING_ROD:
                    if (moveType == TYPE_ELECTRIC
                      && HasMoveWithSplit(battlerAtkPartner, SPLIT_SPECIAL)
                      && BattlerStatCanRise(battlerAtkPartner, atkPartnerAbility, STAT_SPATK))
                    {
                        RETURN_SCORE_PLUS(1);
                    }
                    break;
                case ABILITY_WATER_ABSORB:
                case ABILITY_DRY_SKIN:
                    if (!(AI_THINKING_STRUCT->aiFlags & AI_FLAG_HP_AWARE))
                    {
                        RETURN_SCORE_MINUS(10);
                    }
                    break;  // handled in AI_HPAware
                case ABILITY_STORM_DRAIN:
                    if (moveType == TYPE_WATER
                      && HasMoveWithSplit(battlerAtkPartner, SPLIT_SPECIAL)
                      && BattlerStatCanRise(battlerAtkPartner, atkPartnerAbility, STAT_SPATK))
                    {
                        RETURN_SCORE_PLUS(1);
                    }
                    break;
                case ABILITY_WATER_COMPACTION:
                    if (moveType == TYPE_WATER && GetMoveDamageResult(move) == MOVE_POWER_WEAK)
                    {
                        RETURN_SCORE_PLUS(1);   // only mon with this ability is weak to water so only make it okay if we do very little damage
                    }
                    RETURN_SCORE_MINUS(10);
                    break;
                case ABILITY_FLASH_FIRE:
                    if (moveType == TYPE_FIRE
                      && HasMoveWithType(battlerAtkPartner, TYPE_FIRE)
                      && !(gBattleResources->flags->flags[battlerAtkPartner] & RESOURCE_FLAG_FLASH_FIRE))
                    {
                        RETURN_SCORE_PLUS(1);
                    }
                    break;
                case ABILITY_SAP_SIPPER:
                    if (moveType == TYPE_GRASS
                      && HasMoveWithSplit(battlerAtkPartner, SPLIT_PHYSICAL)
                      && BattlerStatCanRise(battlerAtkPartner, atkPartnerAbility, STAT_ATK))
                    {
                        RETURN_SCORE_PLUS(1);
                    }
                    break;
                case ABILITY_JUSTIFIED:
                    if (moveType == TYPE_DARK
                      && !IS_MOVE_STATUS(move)
                      && HasMoveWithSplit(battlerAtkPartner, SPLIT_PHYSICAL)
                      && BattlerStatCanRise(battlerAtkPartner, atkPartnerAbility, STAT_ATK)
                      && !CanAttackerFaintTarget(battlerAtk, battlerAtkPartner, AI_THINKING_STRUCT->movesetIndex, 1))
                    {
                        RETURN_SCORE_PLUS(1);
                    }
                    break;
                case ABILITY_RATTLED:
                    if (!IS_MOVE_STATUS(move)
                      && (moveType == TYPE_DARK || moveType == TYPE_GHOST || moveType == TYPE_BUG)
                      && BattlerStatCanRise(battlerAtkPartner, atkPartnerAbility, STAT_SPEED)
                      && !CanAttackerFaintTarget(battlerAtk, battlerAtkPartner, AI_THINKING_STRUCT->movesetIndex, 1))
                    {
                        RETURN_SCORE_PLUS(1);
                    }
                    break;
                case ABILITY_CONTRARY:
                    if (IsStatLoweringEffect(effect))
                    {
                        RETURN_SCORE_PLUS(2);
                    }
                    break;
                case ABILITY_DEFIANT:
                    if (IsStatLoweringEffect(effect)
                      && BattlerStatCanRise(battlerAtkPartner, atkPartnerAbility, STAT_ATK))
                    {
                        RETURN_SCORE_PLUS(1);
                    }
                    break;
                case ABILITY_COMPETITIVE:
                    if (IsStatLoweringEffect(effect)
                      && BattlerStatCanRise(battlerAtkPartner, atkPartnerAbility, STAT_SPATK))
                    {
                        RETURN_SCORE_PLUS(1);
                    }
                    break;            
                }
            } // ability checks
        } // move power check
        
        // attacker move effects specifically targeting partner
        if (!partnerProtecting)
        {
            switch (effect)
            {
            case EFFECT_PURIFY:
                if (gBattleMons[battlerAtkPartner].status1 & STATUS1_ANY)
                {
                    RETURN_SCORE_PLUS(1);
                }
                break;
            case EFFECT_SWAGGER:
                if (gBattleMons[battlerAtkPartner].statStages[STAT_ATK] < MAX_STAT_STAGE
                 && HasMoveWithSplit(battlerAtkPartner, SPLIT_PHYSICAL)
                 && (!CanBeConfused(battlerAtkPartner, TRUE)
                  || atkPartnerHoldEffect == HOLD_EFFECT_CURE_CONFUSION
                  || atkPartnerHoldEffect == HOLD_EFFECT_CURE_STATUS))
                {
                    RETURN_SCORE_PLUS(1);
                }
                break;
            case EFFECT_FLATTER:
                if (gBattleMons[battlerAtkPartner].statStages[STAT_SPATK] < MAX_STAT_STAGE
                 && HasMoveWithSplit(battlerAtkPartner, SPLIT_SPECIAL)
                 && (!CanBeConfused(battlerAtkPartner, TRUE)
                  || atkPartnerHoldEffect == HOLD_EFFECT_CURE_CONFUSION
                  || atkPartnerHoldEffect == HOLD_EFFECT_CURE_STATUS))
                {
                    RETURN_SCORE_PLUS(1);
                }
                break;
            case EFFECT_BEAT_UP:
                if (atkPartnerAbility == ABILITY_JUSTIFIED
                  && moveType == TYPE_DARK
                  && !IS_MOVE_STATUS(move)
                  && HasMoveWithSplit(battlerAtkPartner, SPLIT_PHYSICAL)
                  && BattlerStatCanRise(battlerAtkPartner, atkPartnerAbility, STAT_ATK)
                  && !CanAttackerFaintTarget(battlerAtk, battlerAtkPartner, AI_THINKING_STRUCT->movesetIndex, 0))
                {
                    RETURN_SCORE_PLUS(1);
                }
                break;
            case EFFECT_SKILL_SWAP:
                if (AI_DATA->atkAbility != AI_DATA->atkPartnerAbility && !attackerHasBadAbility)
                {
                    if (AI_DATA->atkPartnerAbility == ABILITY_TRUANT)
                    {
                        RETURN_SCORE_PLUS(10);
                    }
                    else if (AI_DATA->atkAbility == ABILITY_COMPOUND_EYES
                     && HasMoveWithLowAccuracy(battlerAtkPartner, FOE(battlerAtkPartner), 90, TRUE, atkPartnerAbility, AI_GetAbility(FOE(battlerAtkPartner)), atkPartnerHoldEffect, AI_GetHoldEffect(FOE(battlerAtkPartner))))
                    {
                        RETURN_SCORE_PLUS(3);
                    }
                }
                break;
            case EFFECT_ROLE_PLAY:
                if (attackerHasBadAbility && !partnerHasBadAbility)
                {
                    RETURN_SCORE_PLUS(1);
                }
                break;
            case EFFECT_WORRY_SEED:
            case EFFECT_GASTRO_ACID:
            case EFFECT_SIMPLE_BEAM:
                if (partnerHasBadAbility)
                {
                    RETURN_SCORE_PLUS(2);
                }
                break;
            case EFFECT_ENTRAINMENT:
                if (partnerHasBadAbility && IsAbilityOfRating(AI_DATA->atkAbility, 0))
                {
                    RETURN_SCORE_PLUS(1);
                }
                break;
            case EFFECT_SOAK:
                if (atkPartnerAbility == ABILITY_WONDER_GUARD
                 && (gBattleMons[battlerAtkPartner].type1 != TYPE_WATER
                 || gBattleMons[battlerAtkPartner].type2 != TYPE_WATER
                 || gBattleMons[battlerAtkPartner].type3 != TYPE_WATER))
                {
                    RETURN_SCORE_PLUS(1);
                }
                break;
            case EFFECT_INSTRUCT:
                {
                    u16 instructedMove;
                    if (GetWhoStrikesFirst(battlerAtk, battlerAtkPartner, TRUE) == 0)
                        instructedMove = AI_DATA->partnerMove;
                    else
                        instructedMove = gLastMoves[battlerAtkPartner];

                    if (instructedMove != MOVE_NONE
                      && !IS_MOVE_STATUS(instructedMove)
                      && gBattleMoves[instructedMove].target & (MOVE_TARGET_BOTH | MOVE_TARGET_FOES_AND_ALLY)) //Use instruct on multi-target moves
                    {
                        RETURN_SCORE_PLUS(1);
                    }
                }
                break;
            case EFFECT_AFTER_YOU:
                if (GetWhoStrikesFirst(battlerAtkPartner, FOE(battlerAtkPartner), TRUE) == 1    // opponent mon 1 goes before partner
                  || GetWhoStrikesFirst(battlerAtkPartner, BATTLE_PARTNER(FOE(battlerAtkPartner)), TRUE) == 1)  // opponent mon 2 goes before partner
                {
                    if (gBattleMoves[AI_DATA->partnerMove].effect == EFFECT_COUNTER || gBattleMoves[AI_DATA->partnerMove].effect == EFFECT_MIRROR_COAT)
                        break; // These moves need to go last
                    RETURN_SCORE_PLUS(1);
                }
                break;
            } // attacker move effects
        } // check partner protecting
        
        score -= 30; // otherwise, don't target partner
    }
    else // checking opponent
    {
        // these checks mostly handled in AI_CheckBadMove and AI_CheckViability        
        switch (effect)
        {
        case EFFECT_SKILL_SWAP:
            if (AI_DATA->atkAbility == ABILITY_TRUANT)
                score += 5;
            else if (IsAbilityOfRating(AI_DATA->atkAbility, 0) || IsAbilityOfRating(AI_DATA->defAbility, 10))
                score += 2; // we want to transfer our bad ability or take their awesome ability
            break;
        case EFFECT_EARTHQUAKE:
        case EFFECT_MAGNITUDE:
            if (!IsBattlerGrounded(battlerAtkPartner)
             || (GetWhoStrikesFirst(battlerAtk, battlerAtkPartner, TRUE) == 1 && IsUngroundingEffect(gBattleMoves[AI_DATA->partnerMove].effect)))
                score += 2;
            else if (IS_BATTLER_OF_TYPE(battlerAtkPartner, TYPE_FIRE)
              || IS_BATTLER_OF_TYPE(battlerAtkPartner, TYPE_ELECTRIC)
              || IS_BATTLER_OF_TYPE(battlerAtkPartner, TYPE_POISON)
              || IS_BATTLER_OF_TYPE(battlerAtkPartner, TYPE_ROCK))
                score -= 10;    // partner will be hit by earthquake and is weak to it
            else
                score -= 3;
            break;
        }
        
        // lightning rod, flash fire against enemy handled in AI_CheckBadMove
    }
    
    return score;
}

// AI_FLAG_CHECK_VIABILITY - a weird mix of increasing and decreasing scores
static s16 AI_CheckViability(u8 battlerAtk, u8 battlerDef, u16 move, s16 score)
{
    // move data
    u16 moveEffect = gBattleMoves[move].effect;
    u8 effectiveness = AI_GetMoveEffectiveness(move, battlerAtk, battlerDef);
    u8 atkPriority = GetMovePriority(battlerAtk, move);
    u16 predictedMove = gLastMoves[battlerDef]; //for now
    bool32 isDoubleBattle = IsValidDoubleBattle(battlerAtk);
    u32 i;
    u8 atkHpPercent = GetHealthPercentage(battlerAtk);
    u8 defHpPercent = GetHealthPercentage(battlerDef);
    
    // Targeting partner, check benefits of doing that instead
    if (IsTargetingPartner(battlerAtk, battlerDef))
        return score;
    
    // check always hits
    if (!IS_MOVE_STATUS(move) && gBattleMoves[move].accuracy == 0)
    {
        if (gBattleMons[battlerDef].statStages[STAT_EVASION] >= 10 || gBattleMons[battlerAtk].statStages[STAT_ACC] <= 2)
            score++;
        if (AI_RandLessThan(100) && (gBattleMons[battlerDef].statStages[STAT_EVASION] >= 8 || gBattleMons[battlerAtk].statStages[STAT_ACC] <= 4))
            score++;
    }
    
    // check high crit
    if (TestMoveFlags(move, FLAG_HIGH_CRIT) && effectiveness >= AI_EFFECTIVENESS_x2 && AI_RandLessThan(128))
        score++;
    
    // check already dead
    if (!IsBattlerIncapacitated(battlerDef, AI_DATA->defAbility)
      && CanTargetFaintAi(battlerAtk, battlerDef)
      && GetWhoStrikesFirst(battlerAtk, battlerDef, TRUE) == 1) // opponent should go first
    {
        if (atkPriority > 0) 
            score++;
        else
            score--;
    }
    
    // check damage
    if (gBattleMoves[move].power != 0 && GetMoveDamageResult(move) == MOVE_POWER_WEAK)
        score--;

    // check status move preference
    if (AI_THINKING_STRUCT->aiFlags & AI_FLAG_PREFER_STATUS_MOVES && IS_MOVE_STATUS(move) && effectiveness != AI_EFFECTIVENESS_x0)
        score++;
    
    // check thawing moves
    if ((gBattleMons[battlerAtk].status1 & STATUS1_FREEZE) && IsThawingMove(battlerAtk, move))
        score += (gBattleTypeFlags & BATTLE_TYPE_DOUBLE) ? 20 : 10;
    
    // check burn
    if (gBattleMons[battlerAtk].status1 & STATUS1_BURN)
    {
        switch (AI_DATA->atkAbility)
        {
        case ABILITY_GUTS:
            break;
        case ABILITY_NATURAL_CURE:
            if (AI_THINKING_STRUCT->aiFlags & AI_FLAG_SMART_SWITCHING
             && HasOnlyMovesWithSplit(battlerAtk, SPLIT_PHYSICAL, TRUE))
                score = 90; // Force switch if all your attacking moves are physical and you have Natural Cure.
            break;
        default:
            if (IS_MOVE_PHYSICAL(move) && gBattleMoves[move].effect != EFFECT_FACADE)
                score -= 2;
            break;
        }
    }
    
    // ability checks
    switch (AI_DATA->atkAbility)
    {
    case ABILITY_MOXIE:
    case ABILITY_BEAST_BOOST:
        if (GetWhoStrikesFirst(battlerAtk, battlerDef, TRUE) == 0) // attacker should go first
        {
            if (CanAttackerFaintTarget(battlerAtk, battlerDef, AI_THINKING_STRUCT->movesetIndex, 0))
                score += 8; // prioritize killing target for stat boost
        }
        break;
    case ABILITY_MAGIC_GUARD:
        switch (moveEffect)
        {
        case EFFECT_POISON:
        case EFFECT_WILL_O_WISP:
        case EFFECT_TOXIC:
        case EFFECT_LEECH_SEED:
            score -= 5;
            break;
        case EFFECT_CURSE:
            if (IS_BATTLER_OF_TYPE(battlerDef, TYPE_GHOST))
                score -= 5;
            break;
        }
        break;
    } // ability checks    
    
    // move effect checks
    switch (moveEffect)
    {
        
    case EFFECT_HIT:
        break;
    case EFFECT_SLEEP:
    case EFFECT_YAWN:
        if (AI_RandLessThan(128))
            IncreaseSleepScore(battlerAtk, battlerDef, move, &score);
        break;
	case EFFECT_ABSORB:
        if (AI_DATA->atkHoldEffect == HOLD_EFFECT_BIG_ROOT)
            score++;
        if (effectiveness <= AI_EFFECTIVENESS_x0_5 && AI_RandLessThan(50))
            score -= 3;
        break;
    case EFFECT_EXPLOSION:
    case EFFECT_MEMENTO:
        if (AI_THINKING_STRUCT->aiFlags & AI_FLAG_WILL_SUICIDE && gBattleMons[battlerDef].statStages[STAT_EVASION] < 7)
        {
            if (atkHpPercent < 50 && AI_RandLessThan(128))
                score++;
        }
        break;
	case EFFECT_MIRROR_MOVE:
        if (predictedMove != MOVE_NONE)
            return AI_CheckViability(battlerAtk, battlerDef, gLastMoves[battlerDef], score);
        break;
// stat raising effects
	case EFFECT_ATTACK_UP:
    case EFFECT_ATTACK_UP_2:
        if (MovesWithSplitUnusable(battlerAtk, battlerDef, SPLIT_PHYSICAL))
        {
            score -= 8;
            break;
        }
        else if (gBattleMons[battlerAtk].statStages[STAT_ATK] < 9)
        {
            if (atkHpPercent > 90 && AI_RandLessThan(128))
            {
                score += 2;
                break;
            }
        }
        
        if (!AI_RandLessThan(100))
        {
            score--;
        }
        break;
	case EFFECT_DEFENSE_UP:
    case EFFECT_DEFENSE_UP_2:
    case EFFECT_DEFENSE_UP_3:
        if (!HasMoveWithSplit(battlerDef, SPLIT_PHYSICAL))
            score -= 2;
        if (atkHpPercent > 90 && AI_RandLessThan(128))
            score += 2;
        else if (atkHpPercent > 70 && AI_RandLessThan(200))
            break;
        else if (atkHpPercent < 40)
            score -= 2;
        break;
	case EFFECT_SPEED_UP:
    case EFFECT_SPEED_UP_2:
        if (IsAiFaster(AI_CHECK_SLOWER))
        {
            if (!AI_RandLessThan(70))
                score += 3;
        }
        else
        {
            score -= 3;
        }
        break;
	case EFFECT_SPECIAL_ATTACK_UP:
    case EFFECT_SPECIAL_ATTACK_UP_2:
    case EFFECT_SPECIAL_ATTACK_UP_3:
        if (MovesWithSplitUnusable(battlerAtk, battlerDef, SPLIT_SPECIAL))
        {
            score -= 8;
            break;
        }
        else if (gBattleMons[battlerAtk].statStages[STAT_SPATK] < 9)
        {
            if (atkHpPercent > 90 && AI_RandLessThan(128))
            {
                score += 2;
                break;
            }
        }
        
        if (!AI_RandLessThan(100))
        {
            score--;
        }
        break;
	case EFFECT_SPECIAL_DEFENSE_UP:
    case EFFECT_SPECIAL_DEFENSE_UP_2:
        if (!HasMoveWithSplit(battlerDef, SPLIT_SPECIAL))
            score -= 2;
        if (atkHpPercent > 90 && AI_RandLessThan(128))
            score += 2;
        else if (GetHealthPercentage(battlerAtk) > 70 && AI_RandLessThan(200))
            break;
        else if (GetHealthPercentage(battlerAtk) < 40)
            score -= 2;
        break;
	case EFFECT_ACCURACY_UP:
    case EFFECT_ACCURACY_UP_2:
        if (gBattleMons[battlerAtk].statStages[STAT_ACC] >= 9 && !AI_RandLessThan(50))
            score -= 2;
        else if (atkHpPercent <= 70)
            score -= 2;
        else 
            score++;
        break;
	case EFFECT_EVASION_UP:
    case EFFECT_EVASION_UP_2:
        if (atkHpPercent > 90 && !AI_RandLessThan(100))
            score += 3;
        if (gBattleMons[battlerAtk].statStages[STAT_EVASION] > 9 && AI_RandLessThan(128))
            score--;
        if ((gBattleMons[battlerDef].status1 & STATUS1_PSN_ANY) && atkHpPercent >= 50 && !AI_RandLessThan(80))
            score += 3;
        if (gStatuses3[battlerDef] & STATUS3_LEECHSEED && !AI_RandLessThan(70))
            score += 3;
        if (gStatuses3[battlerAtk] & STATUS3_ROOTED && AI_RandLessThan(128))
            score += 2;
        if (gBattleMons[battlerDef].status2 & STATUS2_CURSED && !AI_RandLessThan(70))
            score += 3;
        if (atkHpPercent < 70 || gBattleMons[battlerAtk].statStages[STAT_EVASION] == DEFAULT_STAT_STAGE)
            break;
        else if (atkHpPercent < 40 || defHpPercent < 40)
            score -= 2;
        else if (!AI_RandLessThan(70))
            score -= 2;
        break;
// stat lowering effects
	case EFFECT_ATTACK_DOWN:
    case EFFECT_ATTACK_DOWN_2:
        if (!ShouldLowerAttack(battlerAtk, battlerDef, AI_DATA->defAbility))
            score -= 2;
        if (gBattleMons[battlerDef].statStages[STAT_ATK] < DEFAULT_STAT_STAGE)
            score--;
        else if (atkHpPercent <= 90)
            score--;
        if (gBattleMons[battlerDef].statStages[STAT_ATK] > 3 && !AI_RandLessThan(50))
            score -= 2;
        else if (defHpPercent < 70)
            score -= 2;
        break;
	case EFFECT_DEFENSE_DOWN:
    case EFFECT_DEFENSE_DOWN_2:
        if (!ShouldLowerDefense(battlerAtk, battlerDef, AI_DATA->defAbility))
            score -= 2;
        if ((atkHpPercent < 70 && !AI_RandLessThan(50)) || (gBattleMons[battlerDef].statStages[STAT_DEF] <= 3 && !AI_RandLessThan(50)))
            score -= 2;
        if (defHpPercent <= 70)
            score -= 2;
        break;
	case EFFECT_SPEED_DOWN:
    case EFFECT_SPEED_DOWN_2:
        if (IsAiFaster(AI_CHECK_FASTER))
            score -= 3;
        else if (!AI_RandLessThan(70))
            score += 2;
        break;
	case EFFECT_SPECIAL_ATTACK_DOWN:
    case EFFECT_SPECIAL_ATTACK_DOWN_2:
        if (!ShouldLowerSpAtk(battlerAtk, battlerDef, AI_DATA->defAbility))
            score -= 2;
        if (gBattleMons[battlerDef].statStages[STAT_SPATK] < DEFAULT_STAT_STAGE)
            score--;
        else if (atkHpPercent <= 90)
            score--;
        if (gBattleMons[battlerDef].statStages[STAT_SPATK] > 3 && !AI_RandLessThan(50))
            score -= 2;
        else if (defHpPercent < 70)
            score -= 2;
        break;
	case EFFECT_SPECIAL_DEFENSE_DOWN:
    case EFFECT_SPECIAL_DEFENSE_DOWN_2:
        if (!ShouldLowerSpDef(battlerAtk, battlerDef, AI_DATA->defAbility))
            score -= 2;
        if ((atkHpPercent < 70 && !AI_RandLessThan(50))
          || (gBattleMons[battlerDef].statStages[STAT_SPDEF] <= 3 && !AI_RandLessThan(50)))
            score -= 2;
        if (defHpPercent <= 70)
            score -= 2;
        break;
	case EFFECT_ACCURACY_DOWN:
    case EFFECT_ACCURACY_DOWN_2:
        if (ShouldLowerAccuracy(battlerAtk, battlerDef, AI_DATA->defAbility))
            score -= 2;
        if ((atkHpPercent < 70 || defHpPercent < 70) && AI_RandLessThan(100))
            score--;
        if (gBattleMons[battlerDef].statStages[STAT_ACC] <= 4 && !AI_RandLessThan(80))
            score -= 2;
        if (gBattleMons[battlerDef].status1 & STATUS1_PSN_ANY && !AI_RandLessThan(70))
            score += 2;
        if (gStatuses3[battlerDef] & STATUS3_LEECHSEED && !AI_RandLessThan(70))
            score += 2;
        if (gStatuses3[battlerDef] & STATUS3_ROOTED && AI_RandLessThan(128))
            score++;
        if (gBattleMons[battlerDef].status2 & STATUS2_CURSED && !AI_RandLessThan(70))
            score += 2;
        if (atkHpPercent > 70 || gBattleMons[battlerDef].statStages[STAT_ACC] < DEFAULT_STAT_STAGE)
            break;
        else if (atkHpPercent < 40 || defHpPercent < 40 || !AI_RandLessThan(70))
            score -= 2;
        break;
	case EFFECT_EVASION_DOWN:
    case EFFECT_EVASION_DOWN_2:
        if (!ShouldLowerEvasion(battlerAtk, battlerDef, AI_DATA->defAbility))
            score -= 2;
        if ((atkHpPercent < 70 || gBattleMons[battlerDef].statStages[STAT_EVASION] <= 3) && !AI_RandLessThan(50))
            score -= 2;
        if (defHpPercent <= 70)
            score -= 2;
        if (gBattleMons[battlerAtk].statStages[STAT_ACC] < DEFAULT_STAT_STAGE)
            score++;
        if (gBattleMons[battlerDef].statStages[STAT_EVASION] < 7 || AI_DATA->atkAbility == ABILITY_NO_GUARD)
            score -= 2;
        break;
	case EFFECT_BIDE:
        if (atkHpPercent < 90)
            score -= 2;
        break;
    case EFFECT_DREAM_EATER:
        if (!(gBattleMons[battlerDef].status1 & STATUS1_SLEEP))
            break;
        score++;    // if target is asleep, dream eater is a pretty good move even without draining
        // fallthrough
    case EFFECT_ACUPRESSURE:
        break;
    case EFFECT_ATTACK_ACCURACY_UP: // hone claws
        IncreaseStatUpScore(battlerAtk, battlerDef, STAT_ATK, &score);
        IncreaseStatUpScore(battlerAtk, battlerDef, STAT_ACC, &score);
        break;
    case EFFECT_GROWTH:
    case EFFECT_ATTACK_SPATK_UP:    // work up
        if (GetHealthPercentage(battlerAtk) <= 40 || AI_DATA->atkAbility == ABILITY_CONTRARY)
            break;
        
        if (HasMoveWithSplit(battlerAtk, SPLIT_PHYSICAL))
            IncreaseStatUpScore(battlerAtk, battlerDef, STAT_ATK, &score);
        else if (HasMoveWithSplit(battlerAtk, SPLIT_SPECIAL))
            IncreaseStatUpScore(battlerAtk, battlerDef, STAT_SPATK, &score);
        break;
    case EFFECT_HAZE:
        if (AnyStatIsRaised(AI_DATA->battlerAtkPartner)
          || PartnerHasSameMoveEffectWithoutTarget(AI_DATA->battlerAtkPartner, move, AI_DATA->partnerMove))
            score -= 3;
            break;
        // fallthrough
    case EFFECT_ROAR:
    case EFFECT_CLEAR_SMOG:
        if (isDoubleBattle)
            score += min(CountPositiveStatStages(battlerDef) + CountPositiveStatStages(AI_DATA->battlerDefPartner), 7);
        else
            score += min(CountPositiveStatStages(battlerDef), 4);
        break;
    case EFFECT_MULTI_HIT:
    case EFFECT_DOUBLE_HIT:
    case EFFECT_TRIPLE_KICK:
        break;
    case EFFECT_CONVERSION:
        if (!IS_BATTLER_OF_TYPE(battlerAtk, gBattleMoves[gBattleMons[battlerAtk].moves[0]].type))
            score++;
        break;
    case EFFECT_FLINCH_HIT:
        score += ShouldTryToFlinch(battlerAtk, battlerDef, AI_DATA->atkAbility, AI_DATA->defAbility, move);
        break;
    case EFFECT_SWALLOW:
        if (gDisableStructs[battlerAtk].stockpileCounter == 0)
        {
            break;
        }
        else
        {
            u32 healPercent = 0;
            switch (gDisableStructs[battlerAtk].stockpileCounter)
            {
            case 1:
                healPercent = 25;
                break;
            case 2:
                healPercent = 50;
                break;
            case 3:
                healPercent = 100;
                break;
            default:
                break;
            }
            
            if (ShouldRecover(battlerAtk, battlerDef, move, healPercent))
                score += 2;
        }
        break;
    case EFFECT_RESTORE_HP:
    case EFFECT_SOFTBOILED:
    case EFFECT_ROOST:
    case EFFECT_MORNING_SUN:
    case EFFECT_SYNTHESIS:
    case EFFECT_MOONLIGHT:
        if (ShouldRecover(battlerAtk, battlerDef, move, 50))
            score += 3;
        if (AI_DATA->atkHoldEffect == HOLD_EFFECT_BIG_ROOT)
            score++;
        break;
    case EFFECT_TOXIC:
    case EFFECT_POISON:
        IncreasePoisonScore(battlerAtk, battlerDef, move, &score);
        break;
    case EFFECT_LIGHT_SCREEN:
    case EFFECT_REFLECT:
    case EFFECT_AURORA_VEIL:
        if (ShouldSetScreen(battlerAtk, battlerDef, moveEffect))
        {
            score += 5;
            if (AI_DATA->atkHoldEffect == HOLD_EFFECT_LIGHT_CLAY)
                score += 2;
            if (AI_THINKING_STRUCT->aiFlags & AI_FLAG_SCREENER)
                score += 2;
        }
        break;
    case EFFECT_REST:
        if (!(CanSleep(battlerAtk, AI_DATA->atkAbility)))
        {
            break;
        }
        else if (ShouldRecover(battlerAtk, battlerDef, move, 100))
        {
            if (AI_DATA->atkHoldEffect == HOLD_EFFECT_CURE_SLP
              || AI_DATA->atkHoldEffect == HOLD_EFFECT_CURE_STATUS
              || HasMoveEffect(EFFECT_SLEEP_TALK, battlerAtk)
              || HasMoveEffect(EFFECT_SNORE, battlerAtk)
              || AI_DATA->atkAbility == ABILITY_SHED_SKIN
              || AI_DATA->atkAbility == ABILITY_EARLY_BIRD
              || (gBattleWeather & WEATHER_RAIN_ANY && gWishFutureKnock.weatherDuration != 1 && AI_DATA->atkAbility == ABILITY_HYDRATION && AI_DATA->atkHoldEffect != HOLD_EFFECT_UTILITY_UMBRELLA))
            {
                score += 2;
            }
            else
            {
                score++;
            }
        }
        break;
    case EFFECT_OHKO:
        if (gStatuses3[battlerAtk] & STATUS3_ALWAYS_HITS)
            score += 5;
        break;
    case EFFECT_TRAP:
    case EFFECT_MEAN_LOOK:
        if (HasMoveEffect(battlerDef, EFFECT_RAPID_SPIN)
          || IS_BATTLER_OF_TYPE(battlerDef, TYPE_GHOST)
          || gBattleMons[battlerDef].status2 & STATUS2_WRAPPED)
        {
            break; // in this case its a bad attacking move
        }
        else if (ShouldTrap(battlerAtk, battlerDef, move))
        {
            score += 5;
        }
        break;
    case EFFECT_MIST:
        if (AI_THINKING_STRUCT->aiFlags & AI_FLAG_SCREENER)
            score += 2;
        break;
    case EFFECT_FOCUS_ENERGY:
    case EFFECT_LASER_FOCUS:
        if (AI_DATA->atkAbility == ABILITY_SUPER_LUCK
          || AI_DATA->atkAbility == ABILITY_SNIPER
          || AI_DATA->atkHoldEffect == HOLD_EFFECT_SCOPE_LENS
          || TestMoveFlagsInMoveset(battlerAtk, FLAG_HIGH_CRIT))
            score += 2;
        break;
    case EFFECT_CONFUSE_HIT:
        if (AI_DATA->atkAbility == ABILITY_SERENE_GRACE)
            score++;
        //fallthrough
    case EFFECT_CONFUSE:
        IncreaseConfusionScore(battlerAtk, battlerDef, move, &score);
        break;
    case EFFECT_PARALYZE:
        IncreaseParalyzeScore(battlerAtk, battlerDef, move, &score);
        break;
    case EFFECT_ATTACK_DOWN_HIT:
    case EFFECT_DEFENSE_DOWN_HIT:
    case EFFECT_SPECIAL_ATTACK_DOWN_HIT:
    case EFFECT_SPECIAL_DEFENSE_DOWN_HIT:
    case EFFECT_ACCURACY_DOWN_HIT:
    case EFFECT_EVASION_DOWN_HIT:
        if (AI_DATA->atkAbility == ABILITY_SERENE_GRACE && AI_DATA->defAbility != ABILITY_CONTRARY)
            score += 2;
        break;
    case EFFECT_SPEED_DOWN_HIT:
        if (IsAiFaster(AI_CHECK_FASTER))
            score -= 2;
        else if (!AI_RandLessThan(70))
            score++;
        if (AI_DATA->atkAbility == ABILITY_SERENE_GRACE && AI_DATA->defAbility != ABILITY_CONTRARY)
            score++;
        break;
        if (ShouldLowerSpeed(battlerAtk, battlerDef, AI_DATA->defAbility))
        {
            if (AI_DATA->atkAbility == ABILITY_SERENE_GRACE && AI_DATA->defAbility != ABILITY_CONTRARY)
                score += 4;
            else
                score += 2;
        }
        break;
    case EFFECT_SUBSTITUTE:
        if (gStatuses3[battlerDef] & STATUS3_PERISH_SONG)
            score += 3;
        if (gBattleMons[battlerDef].status1 & (STATUS1_BURN | STATUS1_PSN_ANY))
            score++;
        if (HasMoveEffect(battlerDef, EFFECT_SLEEP)
          || HasMoveEffect(battlerDef, EFFECT_TOXIC)
          || HasMoveEffect(battlerDef, EFFECT_POISON)
          || HasMoveEffect(battlerDef, EFFECT_PARALYZE)
          || HasMoveEffect(battlerDef, EFFECT_WILL_O_WISP)
          || HasMoveEffect(battlerDef, EFFECT_CONFUSE)
          || HasMoveEffect(battlerDef, EFFECT_LEECH_SEED))
            score += 2;
        if (!gBattleMons[battlerDef].status2 & (STATUS2_WRAPPED | STATUS2_ESCAPE_PREVENTION && GetHealthPercentage(battlerAtk) > 70))
            score++;
        break;
    case EFFECT_MIMIC:
        if (GetWhoStrikesFirst(battlerAtk, battlerDef, TRUE) == 0)
        {
            if (gLastMoves[battlerDef] != MOVE_NONE && gLastMoves[battlerDef] != 0xFFFF)
                return AI_CheckViability(battlerAtk, battlerDef, gLastMoves[battlerDef], score);
        }
        break;
    case EFFECT_LEECH_SEED:
        if (IS_BATTLER_OF_TYPE(battlerDef, TYPE_GRASS)
          || gStatuses3[battlerDef] & STATUS3_LEECHSEED
          || HasMoveEffect(battlerDef, EFFECT_RAPID_SPIN)
          || AI_DATA->defAbility == ABILITY_LIQUID_OOZE
          || AI_DATA->defAbility == ABILITY_MAGIC_GUARD)
            break;
        score += 3;
        if (!HasDamagingMove(battlerDef) || IsBattlerTrapped(battlerDef, FALSE))
            score += 2;
        break;
    case EFFECT_DO_NOTHING:
        //todo - check z splash, z celebrate, z happy hour (lol)
        break;
    case EFFECT_TELEPORT:
        if (!(gBattleTypeFlags & BATTLE_TYPE_TRAINER) || GetBattlerSide(battlerAtk) != B_SIDE_PLAYER)
            break;
        //fallthrough
    case EFFECT_HIT_ESCAPE:
    case EFFECT_PARTING_SHOT:
        if (!IsDoubleBattle())
        {
            switch (ShouldPivot(battlerAtk, battlerDef, AI_DATA->defAbility, move, AI_THINKING_STRUCT->movesetIndex))
            {
            case 0: // no
                score -= 10;    // technically should go in CheckBadMove, but this is easier/less computationally demanding
                break;
            case 1: // maybe
                break;
            case 2: // yes
                score += 7;
                break;
            }
        }
        else //Double Battle
        {
            if (CountUsablePartyMons(battlerAtk) == 0)
                break; // Can't switch

            //if (switchAbility == ABILITY_INTIMIDATE && PartyHasMoveSplit(battlerDef, SPLIT_PHYSICAL))
                //score += 7;
        }
        break;
    case EFFECT_BATON_PASS:
        if (ShouldSwitch() && (gBattleMons[battlerAtk].status2 & STATUS2_SUBSTITUTE
          || (gStatuses3[battlerAtk] & (STATUS3_ROOTED | STATUS3_AQUA_RING | STATUS3_MAGNET_RISE | STATUS3_POWER_TRICK))
          || AnyStatIsRaised(battlerAtk)))
            score += 5;
        break;
    case EFFECT_DISABLE:
        if (gDisableStructs[battlerDef].disableTimer == 0
          && (B_MENTAL_HERB >= GEN_5 && AI_DATA->defHoldEffect != HOLD_EFFECT_CURE_ATTRACT))    // mental herb
        {
            if (GetWhoStrikesFirst(battlerAtk, battlerDef, TRUE) == 0)  // AI goes first
            {
                if (gLastMoves[battlerDef] != MOVE_NONE
                  && gLastMoves[battlerDef] != 0xFFFF)
                {
                    /* TODO predicted moves
                    if (gLastMoves[battlerDef] == predictedMove)
                        score += 3;
                    else */if (CanMoveFaintBattler(gLastMoves[battlerDef], battlerDef, battlerAtk, 1))
                        score += 2;; //Disable move that can kill attacker
                }
            }
            else if (predictedMove != MOVE_NONE && IS_MOVE_STATUS(predictedMove))
            {
                score++; // Disable annoying status moves
            }
        }
        break;
    case EFFECT_ENCORE:
        if (gDisableStructs[battlerDef].encoreTimer == 0
          && (B_MENTAL_HERB >= GEN_5 && AI_DATA->defHoldEffect != HOLD_EFFECT_CURE_ATTRACT))    // mental herb
        {
            if (IsEncoreEncouragedEffect(gBattleMoves[gLastMoves[battlerDef]].effect))
                score += 3;
        }
        break;
    case EFFECT_PAIN_SPLIT:
        {
            u16 newHp = (gBattleMons[battlerAtk].hp + gBattleMons[battlerDef].hp) / 2;
            u16 healthBenchmark = (gBattleMons[battlerAtk].hp * 12) / 10;
            if (newHp > healthBenchmark && ShouldAbsorb(battlerAtk, battlerDef, move, AI_THINKING_STRUCT->simulatedDmg[battlerAtk][battlerDef][AI_THINKING_STRUCT->movesetIndex]))
                score += 2;
        }
        break;    
    case EFFECT_SLEEP_TALK:
    case EFFECT_SNORE:
        if (!IsWakeupTurn(battlerAtk) && gBattleMons[battlerAtk].status1 & STATUS1_SLEEP)
            score += 10;
        break;
    case EFFECT_LOCK_ON:
        if (HasMoveEffect(battlerAtk, EFFECT_OHKO))
            score += 3;
        else if (AI_DATA->atkAbility == ABILITY_COMPOUND_EYES && HasMoveWithLowAccuracy(battlerAtk, battlerDef, 80, TRUE, AI_DATA->atkAbility, AI_DATA->defAbility, AI_DATA->atkHoldEffect, AI_DATA->defHoldEffect))
            score += 3;
        else if (HasMoveWithLowAccuracy(battlerAtk, battlerDef, 85, TRUE, AI_DATA->atkAbility, AI_DATA->defAbility, AI_DATA->atkHoldEffect, AI_DATA->defHoldEffect))
            score += 3;
        else if (HasMoveWithLowAccuracy(battlerAtk, battlerDef, 90, TRUE, AI_DATA->atkAbility, AI_DATA->defAbility, AI_DATA->atkHoldEffect, AI_DATA->defHoldEffect))
            score++;
        break;
    case EFFECT_SPEED_UP_HIT:
        if (AI_DATA->atkAbility == ABILITY_SERENE_GRACE && AI_DATA->defAbility != ABILITY_CONTRARY && IsAiFaster(AI_CHECK_SLOWER))
            score += 3;
        break;
    case EFFECT_DESTINY_BOND:
        if (GetWhoStrikesFirst(battlerAtk, battlerDef, TRUE) == 0 && CanTargetFaintAi(battlerDef, battlerAtk))
            score += 3;
        break;
    case EFFECT_SPITE:
        //TODO - predicted move
        break;
    case EFFECT_WISH:
    case EFFECT_HEAL_BELL:
        if (ShouldUseWishAromatherapy(battlerAtk, battlerDef, move))
            score += 7;
        break;
    case EFFECT_THIEF:
        {
            bool32 canSteal = FALSE;
            
            #if defined B_TRAINERS_KNOCK_OFF_ITEMS && B_TRAINERS_KNOCK_OFF_ITEMS == TRUE
                canSteal = TRUE;
            #endif
            if (gBattleTypeFlags & BATTLE_TYPE_FRONTIER || GetBattlerSide(battlerAtk) == B_SIDE_PLAYER)
                canSteal = TRUE;
            
            if (canSteal && AI_DATA->atkItem == ITEM_NONE
              && AI_DATA->defItem != ITEM_NONE
              && CanBattlerGetOrLoseItem(battlerDef, AI_DATA->defItem)
              && CanBattlerGetOrLoseItem(battlerAtk, AI_DATA->defItem)
              && !HasMoveEffect(battlerAtk, EFFECT_ACROBATICS)
              && AI_DATA->defAbility != ABILITY_STICKY_HOLD)
            {
                switch (AI_DATA->defHoldEffect)
                {
                case HOLD_EFFECT_NONE:
                    break;
                case HOLD_EFFECT_CHOICE_BAND:
                case HOLD_EFFECT_CHOICE_SCARF:
                case HOLD_EFFECT_CHOICE_SPECS:
                    score += 2;
                    break;
                case HOLD_EFFECT_TOXIC_ORB:
                    if (ShouldPoisonSelf(battlerAtk, AI_DATA->atkAbility))
                        score += 2;
                    break;
                case HOLD_EFFECT_FLAME_ORB:
                    if (ShouldBurnSelf(battlerAtk, AI_DATA->atkAbility))
                        score += 2;
                    break;
                case HOLD_EFFECT_BLACK_SLUDGE:
                    if (IS_BATTLER_OF_TYPE(battlerAtk, TYPE_POISON))
                        score += 2;
                    break;
                case HOLD_EFFECT_IRON_BALL:
                    if (HasMoveEffect(battlerAtk, EFFECT_FLING))
                        score += 2;
                    break;
                case HOLD_EFFECT_LAGGING_TAIL:
                case HOLD_EFFECT_STICKY_BARB:
                    break;
                default:
                    score++;
                    break;
                }
            }
            break;
        }
        break;
    case EFFECT_NIGHTMARE:
        if (AI_DATA->defAbility != ABILITY_MAGIC_GUARD
          && !(gBattleMons[battlerDef].status2 & STATUS2_NIGHTMARE)
          && (AI_DATA->defAbility == ABILITY_COMATOSE || gBattleMons[battlerDef].status1 & STATUS1_SLEEP))
        {
            score += 5;
            if (IsBattlerTrapped(battlerDef, TRUE))
                score += 3;
        }
        break;
    case EFFECT_CURSE:
        if (IS_BATTLER_OF_TYPE(battlerAtk, TYPE_GHOST))
        {
            if (IsBattlerTrapped(battlerDef, TRUE))
                score += 3;
            else
                score++;
            break;
        }
        else
        {
            if (AI_DATA->atkAbility == ABILITY_CONTRARY || AI_DATA->defAbility == ABILITY_MAGIC_GUARD)
                break;
            else if (gBattleMons[battlerAtk].statStages[STAT_ATK] < 8)
                score += (8 - gBattleMons[battlerAtk].statStages[STAT_ATK]);
            else if (gBattleMons[battlerAtk].statStages[STAT_SPEED] < 3)
                break;
            else if (gBattleMons[battlerAtk].statStages[STAT_DEF] < 8)
                score += (8 - gBattleMons[battlerAtk].statStages[STAT_DEF]);
        }
        break;
    case EFFECT_PROTECT:
        if (predictedMove == 0xFFFF)
            predictedMove = MOVE_NONE;
        switch (move)
        {
        case MOVE_QUICK_GUARD:
            if (predictedMove != MOVE_NONE && gBattleMoves[predictedMove].priority > 0)
                ProtectChecks(battlerAtk, battlerDef, move, predictedMove, &score);
            break;
        case MOVE_WIDE_GUARD:
            if (predictedMove != MOVE_NONE && gBattleMoves[predictedMove].target & (MOVE_TARGET_FOES_AND_ALLY | MOVE_TARGET_BOTH))
            {
                ProtectChecks(battlerAtk, battlerDef, move, predictedMove, &score);
            }
            else if (isDoubleBattle && gBattleMoves[AI_DATA->partnerMove].target & MOVE_TARGET_FOES_AND_ALLY)
            {
                if (AI_DATA->atkAbility != ABILITY_TELEPATHY)
                  ProtectChecks(battlerAtk, battlerDef, move, predictedMove, &score);
            }
            break;
        case MOVE_CRAFTY_SHIELD:
            if (predictedMove != MOVE_NONE && IS_MOVE_STATUS(predictedMove) && !(gBattleMoves[predictedMove].target & MOVE_TARGET_USER))
                ProtectChecks(battlerAtk, battlerDef, move, predictedMove, &score);
            break;

        case MOVE_MAT_BLOCK:
            if (gDisableStructs[battlerAtk].isFirstTurn && predictedMove != MOVE_NONE
              && !IS_MOVE_STATUS(predictedMove) && !(gBattleMoves[predictedMove].target & MOVE_TARGET_USER))
                ProtectChecks(battlerAtk, battlerDef, move, predictedMove, &score);
            break;
        case MOVE_KINGS_SHIELD:
            #if (defined SPECIES_AEGISLASH && defined SPECIES_AEGISLASH_BLADE)
            if (AI_DATA->atkAbility == ABILITY_STANCE_CHANGE //Special logic for Aegislash
              && AI_DATA->atkSpecies == SPECIES_AEGISLASH_BLADE
              && !IsBattlerIncapacitated(battlerDef, AI_DATA->defAbility))
            {
                score += 3;
                break;
            }
            #endif
            //fallthrough
        default: // protect
            ProtectChecks(battlerAtk, battlerDef, move, predictedMove, &score);
            break;
        }
        break;
    case EFFECT_ENDURE:
        if (CanTargetFaintAi(battlerDef, battlerAtk))
        {
            if (gBattleMons[battlerAtk].hp > gBattleMons[battlerAtk].maxHP / 4 // Pinch berry couldn't have activated yet
              && IsPinchBerryItemEffect(AI_DATA->atkHoldEffect))
            {
                score += 3;
            }
            else if (gBattleMons[battlerAtk].hp > 1) // Only spam endure for Flail/Reversal if you're not at Min Health
            {
                if (HasMoveEffect(battlerAtk, EFFECT_FLAIL) || HasMoveEffect(battlerAtk, EFFECT_ENDEAVOR))
                    score += 3;
            }
        }
        break;

    case EFFECT_SPIKES:
    case EFFECT_STEALTH_ROCK:
    case EFFECT_STICKY_WEB:
    case EFFECT_TOXIC_SPIKES:
        if (AI_DATA->defAbility == ABILITY_MAGIC_BOUNCE || CountUsablePartyMons(battlerDef) == 0)
            break;
        if (gDisableStructs[battlerAtk].isFirstTurn)
            score += 2;        
        //TODO - track entire opponent party data to determine hazard effectiveness 
        break;
    case EFFECT_FORESIGHT:
        if (AI_DATA->atkAbility == ABILITY_SCRAPPY)
            break;
        else if (gBattleMons[battlerDef].statStages[STAT_EVASION] > DEFAULT_STAT_STAGE
         || (IS_BATTLER_OF_TYPE(battlerDef, TYPE_GHOST)
         && (HasMoveWithType(battlerAtk, TYPE_NORMAL)
         || HasMoveWithType(battlerAtk, TYPE_FIGHTING))))
            score += 2;
        break;
    case EFFECT_MIRACLE_EYE:
        if (gBattleMons[battlerDef].statStages[STAT_EVASION] > DEFAULT_STAT_STAGE
          || (IS_BATTLER_OF_TYPE(battlerDef, TYPE_DARK) && (HasMoveWithType(battlerAtk, TYPE_PSYCHIC))))
            score += 2;
        break;
    case EFFECT_PERISH_SONG:
        if (IsBattlerTrapped(battlerDef, TRUE))
            score += 3;
        break;
    case EFFECT_SANDSTORM:
        if (ShouldSetSandstorm(battlerAtk, AI_DATA->atkHoldEffect, AI_DATA->atkHoldEffect))
        {
            score++;
            if (AI_DATA->atkHoldEffect == HOLD_EFFECT_SMOOTH_ROCK)
                score++;
            if (HasMoveEffect(battlerDef, EFFECT_MORNING_SUN)
              || HasMoveEffect(battlerDef, EFFECT_SYNTHESIS)
              || HasMoveEffect(battlerDef, EFFECT_MOONLIGHT))
                score += 2;                
        }
        break;
    case EFFECT_HAIL:
        if (ShouldSetHail(battlerAtk, AI_DATA->atkAbility, AI_DATA->atkHoldEffect))
        {
            if ((HasMoveEffect(battlerAtk, EFFECT_AURORA_VEIL) || HasMoveEffect(AI_DATA->battlerAtkPartner, EFFECT_AURORA_VEIL))
              && ShouldSetScreen(battlerAtk, battlerDef, EFFECT_AURORA_VEIL))
                score += 3;
            
            score++;
            if (AI_DATA->atkHoldEffect == HOLD_EFFECT_ICY_ROCK)
                score++;
            if (HasMoveEffect(battlerDef, EFFECT_MORNING_SUN)
              || HasMoveEffect(battlerDef, EFFECT_SYNTHESIS)
              || HasMoveEffect(battlerDef, EFFECT_MOONLIGHT))
                score += 2;
        }
        break;
    case EFFECT_RAIN_DANCE:
        if (ShouldSetRain(battlerAtk, AI_DATA->atkAbility, AI_DATA->atkHoldEffect))
        {
            score++;
            if (AI_DATA->atkHoldEffect == HOLD_EFFECT_DAMP_ROCK)
                score++;
            if (HasMoveEffect(battlerDef, EFFECT_MORNING_SUN)
              || HasMoveEffect(battlerDef, EFFECT_SYNTHESIS)
              || HasMoveEffect(battlerDef, EFFECT_MOONLIGHT))
                score += 2;
            if (HasMoveWithType(battlerDef, TYPE_FIRE) || HasMoveWithType(AI_DATA->battlerDefPartner, TYPE_FIRE))
                score++;
        }
        break;
    case EFFECT_SUNNY_DAY:
        if (ShouldSetSun(battlerAtk, AI_DATA->atkAbility, AI_DATA->atkHoldEffect))
        {
            score++;
            if (AI_DATA->atkHoldEffect == HOLD_EFFECT_HEAT_ROCK)
                score++;
            if (HasMoveWithType(battlerDef, TYPE_WATER) || HasMoveWithType(AI_DATA->battlerDefPartner, TYPE_WATER))
                score++;
            if (HasMoveEffect(battlerDef, EFFECT_THUNDER) || HasMoveEffect(AI_DATA->battlerDefPartner, EFFECT_THUNDER))
                score++;
        }
        break;
    case EFFECT_ATTACK_UP_HIT:
        if (AI_DATA->atkAbility == ABILITY_SERENE_GRACE)
            IncreaseStatUpScore(battlerAtk, battlerDef, STAT_ATK, &score);
        break;
    case EFFECT_FELL_STINGER:
        if (gBattleMons[battlerAtk].statStages[STAT_ATK] < MAX_STAT_STAGE
          && AI_DATA->atkAbility != ABILITY_CONTRARY
          && CanAttackerFaintTarget(battlerAtk, battlerDef, AI_THINKING_STRUCT->movesetIndex, 0))
        {
            if (GetWhoStrikesFirst(battlerAtk, battlerDef, TRUE) == 0)  // Attacker goes first
                score += 9;
            else
                score += 3;
        }
        break;
    case EFFECT_BELLY_DRUM:
        if (!CanTargetFaintAi(battlerDef, battlerAtk) && HasMoveWithSplit(battlerAtk, SPLIT_PHYSICAL) && AI_DATA->atkAbility != ABILITY_CONTRARY)
            score += (MAX_STAT_STAGE - gBattleMons[battlerAtk].statStages[STAT_ATK]);
        break;
    case EFFECT_PSYCH_UP:
    case EFFECT_SPECTRAL_THIEF:
        // Want to copy positive stat changes
        for (i = STAT_ATK; i < NUM_BATTLE_STATS; i++)
        {            
            if (gBattleMons[battlerDef].statStages[i] > gBattleMons[battlerAtk].statStages[i])
            {
                switch (i)
                {
                case STAT_ATK:
                    if (HasMoveWithSplit(battlerAtk, SPLIT_PHYSICAL))
                        score++;
                    break;
                case STAT_SPATK:
                    if (HasMoveWithSplit(battlerAtk, SPLIT_SPECIAL))
                        score++;
                    break;
                case STAT_ACC:
                case STAT_EVASION:
                case STAT_SPEED:
                    score++;
                    break;
                case STAT_DEF:
                case STAT_SPDEF:
                    if (AI_THINKING_STRUCT->aiFlags & AI_FLAG_STALL)
                        score++;
                    break;
                }
            }
        }
        break;
    case EFFECT_SEMI_INVULNERABLE:
        score++;
        if (predictedMove != MOVE_NONE && !isDoubleBattle)
        {
            if (GetWhoStrikesFirst(battlerAtk, battlerDef, TRUE) == 0)  // Attacker goes first
            {
                if (gBattleMoves[predictedMove].effect == EFFECT_EXPLOSION
                  || gBattleMoves[predictedMove].effect == EFFECT_PROTECT)
                    score += 3;
            }
            else if (gBattleMoves[predictedMove].effect == EFFECT_SEMI_INVULNERABLE && !(gStatuses3[battlerDef] & STATUS3_SEMI_INVULNERABLE))
            {
                score += 3;
            }
        }
        break;
    case EFFECT_DEFENSE_CURL:
        if (HasMoveEffect(battlerAtk, EFFECT_ROLLOUT) && !(gBattleMons[battlerAtk].status2 & STATUS2_DEFENSE_CURL))
            score++;
        IncreaseStatUpScore(battlerAtk, battlerDef, STAT_DEF, &score);
        break;
    case EFFECT_FAKE_OUT:
        if (move == MOVE_FAKE_OUT    // filter out first impression
          && ShouldFakeOut(battlerAtk, battlerDef, move))
            score += 8;
        break;
    case EFFECT_STOCKPILE:
        if (AI_DATA->atkAbility == ABILITY_CONTRARY)
            break;
        if (HasMoveEffect(battlerAtk, EFFECT_SWALLOW)
          || HasMoveEffect(battlerAtk, EFFECT_SPIT_UP))
            score += 2;
            
        IncreaseStatUpScore(battlerAtk, battlerDef, STAT_DEF, &score);
        IncreaseStatUpScore(battlerAtk, battlerDef, STAT_SPDEF, &score);
        break;
    case EFFECT_SPIT_UP:
        if (gDisableStructs[battlerAtk].stockpileCounter >= 2)
            score++;
        break;
    case EFFECT_ROLLOUT:
        if (gBattleMons[battlerAtk].status2 & STATUS2_DEFENSE_CURL)
            score += 8;
        break;
    case EFFECT_SWAGGER:
        if (HasMoveEffect(battlerAtk, EFFECT_FOUL_PLAY)
          || HasMoveEffect(battlerAtk, EFFECT_PSYCH_UP)
          || HasMoveEffect(battlerAtk, EFFECT_SPECTRAL_THIEF))
            score++;
        
        if (AI_DATA->defAbility == ABILITY_CONTRARY)
            score += 2;
        
        IncreaseConfusionScore(battlerAtk, battlerDef, move, &score);
        break;
    case EFFECT_FLATTER:
        if (HasMoveEffect(battlerAtk, EFFECT_PSYCH_UP)
          || HasMoveEffect(battlerAtk, EFFECT_SPECTRAL_THIEF))
            score += 2;
        
        if (AI_DATA->defAbility == ABILITY_CONTRARY)
            score += 2;
        
        IncreaseConfusionScore(battlerAtk, battlerDef, move, &score);
        break;
    case EFFECT_FURY_CUTTER:
        if (!isDoubleBattle && AI_DATA->atkHoldEffect == HOLD_EFFECT_METRONOME)
            score += 3;
        break;
    case EFFECT_ATTRACT:
        if (!isDoubleBattle && BattlerWillFaintFromSecondaryDamage(battlerDef, AI_DATA->defAbility)
          && GetWhoStrikesFirst(battlerAtk, battlerDef, TRUE) == 1) // Target goes first
            break; // Don't use if the attract won't have a change to activate

        if (gBattleMons[battlerDef].status1 & STATUS1_ANY
          || (gBattleMons[battlerDef].status2 & STATUS2_CONFUSION)
          || IsBattlerTrapped(battlerDef, TRUE))
            score += 2;
        else
            score++;
        break;
    case EFFECT_SAFEGUARD:
        if (!(gFieldStatuses & STATUS_FIELD_MISTY_TERRAIN) || !IsBattlerGrounded(battlerAtk))
            score++;
        //if (CountUsablePartyMons(battlerDef) != 0)
            //score += 8;
        break;
    case EFFECT_PURSUIT:
        /*TODO
        if (IsPredictedToSwitch(battlerDef, battlerAtk))
            score += 3;
        else if (IsPredictedToUsePursuitableMove(battlerDef, battlerAtk) && !MoveWouldHitFirst(move, battlerAtk, battlerDef)) //Pursuit against fast U-Turn
            score += 3;*/
        break;
    case EFFECT_RAPID_SPIN:
        IncreaseStatUpScore(battlerAtk, battlerDef, STAT_SPEED, &score);    // Gen 8 increases speed
        //fallthrough
    case EFFECT_DEFOG:
        if (gSideStatuses[GetBattlerSide(battlerAtk)] & SIDE_STATUS_HAZARDS_ANY && CountUsablePartyMons(battlerAtk) != 0)
        {
            score += 3;
            break;
        }
        
        switch (move)
        {
        case MOVE_DEFOG:
            if (gSideStatuses[GetBattlerSide(battlerDef)] & (SIDE_STATUS_SCREEN_ANY | SIDE_STATUS_SAFEGUARD | SIDE_STATUS_MIST))
            {
                score += 3;
            }
            else if (!(gSideStatuses[GetBattlerSide(battlerDef)] & SIDE_STATUS_SPIKES)) //Don't blow away hazards if you set them up
            {
                if (isDoubleBattle)
                {
                    if (IsHazardMoveEffect(gBattleMoves[AI_DATA->partnerMove].effect) // Partner is going to set up hazards
                      && GetWhoStrikesFirst(battlerAtk, AI_DATA->battlerAtkPartner, TRUE) == 1) // Partner going first
                        break; // Don't use Defog if partner is going to set up hazards
                }
                
                // check defog lowering evasion
                if (ShouldLowerEvasion(battlerAtk, battlerDef, AI_DATA->defAbility))
                {
                    if (gBattleMons[battlerDef].statStages[STAT_EVASION] > 7
                      || HasMoveWithLowAccuracy(battlerAtk, battlerDef, 90, TRUE, AI_DATA->atkAbility, AI_DATA->defAbility, AI_DATA->atkHoldEffect, AI_DATA->defHoldEffect))
                        score += 2; // encourage lowering evasion if they are evasive or we have a move with low accuracy
                    else
                        score++;
                }
            }
            break;
        case MOVE_RAPID_SPIN:
            if (gStatuses3[battlerAtk] & STATUS3_LEECHSEED || gBattleMons[battlerAtk].status2 & STATUS2_WRAPPED)
                score += 3;
            break;
        }
        break;
    case EFFECT_TORMENT:
        break;
    case EFFECT_WILL_O_WISP:
        IncreaseBurnScore(battlerAtk, battlerDef, move, &score);
        break;
    case EFFECT_FOLLOW_ME:
        if (isDoubleBattle
          && move != MOVE_SPOTLIGHT
          && !IsBattlerIncapacitated(battlerDef, AI_DATA->defAbility)
          && (move != MOVE_RAGE_POWDER || IsAffectedByPowder(battlerDef, AI_DATA->defAbility, AI_DATA->defHoldEffect)) // Rage Powder doesn't affect powder immunities
          && IsBattlerAlive(AI_DATA->battlerAtkPartner))
        {
            u16 predictedMoveOnPartner = gLastMoves[AI_DATA->battlerAtkPartner];
            if (predictedMoveOnPartner != MOVE_NONE && !IS_MOVE_STATUS(predictedMoveOnPartner))
                score += 3;
        }
        break;
    case EFFECT_NATURE_POWER:
        return AI_CheckViability(battlerAtk, battlerDef, GetNaturePowerMove(), score);
    case EFFECT_CHARGE:
        if (HasDamagingMoveOfType(battlerAtk, TYPE_ELECTRIC))
            score += 2;
        
        IncreaseStatUpScore(battlerAtk, battlerDef, STAT_SPDEF, &score);
        break;
    case EFFECT_TAUNT:
        if (IS_MOVE_STATUS(predictedMove))
            score += 3;
        else if (HasMoveWithSplit(battlerDef, SPLIT_STATUS))
            score += 2;
        break;
    case EFFECT_TRICK:
    case EFFECT_BESTOW:
        switch (AI_DATA->atkHoldEffect)
        {
        case HOLD_EFFECT_CHOICE_SCARF:
            score += 2; // assume its beneficial
            break;
        case HOLD_EFFECT_CHOICE_BAND:
            if (!HasMoveWithSplit(battlerDef, SPLIT_PHYSICAL))
                score += 2;
            break;
        case HOLD_EFFECT_CHOICE_SPECS:
            if (!HasMoveWithSplit(battlerDef, SPLIT_SPECIAL))
                score += 2;
            break;
        case HOLD_EFFECT_TOXIC_ORB:
            if (!ShouldPoisonSelf(battlerAtk, AI_DATA->atkAbility) && CanBePoisoned(battlerDef, AI_DATA->defAbility))
                score += 2;
            break;
        case HOLD_EFFECT_FLAME_ORB:
            if (!ShouldBurnSelf(battlerAtk, AI_DATA->atkAbility) && CanBeBurned(battlerAtk, AI_DATA->defAbility))
                score += 2;
            break;
        case HOLD_EFFECT_BLACK_SLUDGE:
            if (!IS_BATTLER_OF_TYPE(battlerDef, TYPE_POISON) && AI_DATA->defAbility != ABILITY_MAGIC_GUARD)
                score += 3;
            break;
        case HOLD_EFFECT_IRON_BALL:
            if (!HasMoveEffect(battlerDef, EFFECT_FLING) || !IsBattlerGrounded(battlerDef))
                score += 2;
            break;
        case HOLD_EFFECT_LAGGING_TAIL:
        case HOLD_EFFECT_STICKY_BARB:
            score += 3;
            break;
        case HOLD_EFFECT_UTILITY_UMBRELLA:
            if (AI_DATA->atkAbility != ABILITY_SOLAR_POWER && AI_DATA->atkAbility != ABILITY_DRY_SKIN && AI_WeatherHasEffect())
            {
                switch (AI_DATA->defAbility)
                {
                case ABILITY_SWIFT_SWIM:
                    if (gBattleWeather & WEATHER_RAIN_ANY)
                        score += 3; // Slow 'em down
                    break;
                case ABILITY_CHLOROPHYLL:
                case ABILITY_FLOWER_GIFT:
                    if (gBattleWeather & WEATHER_SUN_ANY)
                        score += 3; // Slow 'em down
                    break;
                }
            }
            break;
        case HOLD_EFFECT_EJECT_BUTTON:
            //if (!IsRaidBattle() && IsDynamaxed(battlerDef) && gNewBS->dynamaxData.timer[battlerDef] > 1 &&
            if (HasDamagingMove(battlerAtk)
             || (isDoubleBattle && IsBattlerAlive(AI_DATA->battlerAtkPartner) && HasDamagingMove(AI_DATA->battlerAtkPartner)))
                score += 2; // Force 'em out next turn
            break;
        default:
            if (move != MOVE_BESTOW && AI_DATA->atkItem == ITEM_NONE)
            {
                switch (AI_DATA->defHoldEffect)
                {
                case HOLD_EFFECT_CHOICE_BAND:
                    break;
                case HOLD_EFFECT_TOXIC_ORB:
                    if (ShouldPoisonSelf(battlerAtk, AI_DATA->atkAbility))
                        score += 2;
                    break;
                case HOLD_EFFECT_FLAME_ORB:
                    if (ShouldBurnSelf(battlerAtk, AI_DATA->atkAbility))
                        score += 2;
                    break;
                case HOLD_EFFECT_BLACK_SLUDGE:
                    if (IS_BATTLER_OF_TYPE(battlerAtk, TYPE_POISON) || AI_DATA->atkAbility == ABILITY_MAGIC_GUARD)
                        score += 3;
                    break;
                case HOLD_EFFECT_IRON_BALL:
                    if (HasMoveEffect(battlerAtk, EFFECT_FLING))
                        score += 2;
                    break;
                case HOLD_EFFECT_LAGGING_TAIL:
                case HOLD_EFFECT_STICKY_BARB:
                    break;
                default:
                    score++;    //other hold effects generally universally good
                    break;
                }
            }
        }
        break;
    case EFFECT_ROLE_PLAY:
        if (!IsRolePlayBannedAbilityAtk(AI_DATA->atkAbility)
          && !IsRolePlayBannedAbility(AI_DATA->defAbility)
          && !IsAbilityOfRating(AI_DATA->atkAbility, 5)
          && IsAbilityOfRating(AI_DATA->defAbility, 5))
            score += 2;
        break;
    case EFFECT_INGRAIN:
        if (AI_DATA->atkHoldEffect == HOLD_EFFECT_BIG_ROOT)
            score += 3;
        else
            score++;
        break;
    case EFFECT_SUPERPOWER:
    case EFFECT_OVERHEAT:
        if (AI_DATA->atkAbility == ABILITY_CONTRARY)
            score += 10;
        break;
    case EFFECT_MAGIC_COAT:
        if (IS_MOVE_STATUS(predictedMove) && gBattleMoves[predictedMove].target & (MOVE_TARGET_SELECTED | MOVE_TARGET_OPPONENTS_FIELD | MOVE_TARGET_BOTH))
            score += 3;
        break;
    case EFFECT_RECYCLE:
        if (gBattleStruct->usedHeldItems[battlerAtk] != ITEM_NONE)
            score++;
        if (IsRecycleEncouragedItem(gBattleStruct->usedHeldItems[battlerAtk]))
            score++;
        break;
    case EFFECT_BRICK_BREAK:
        if (gSideStatuses[GetBattlerSide(battlerDef)] & SIDE_STATUS_REFLECT)
            score++;
        if (gSideStatuses[GetBattlerSide(battlerDef)] & SIDE_STATUS_LIGHTSCREEN)
            score++;
        if (gSideStatuses[GetBattlerSide(battlerDef)] & SIDE_STATUS_AURORA_VEIL)
            score++;
        break;
    case EFFECT_KNOCK_OFF:
        if (CanKnockOffItem(battlerDef, AI_DATA->defItem))
        {
            switch (AI_DATA->defHoldEffect)
            {
            case HOLD_EFFECT_IRON_BALL:
                if (HasMoveEffect(battlerDef, EFFECT_FLING))
                    score += 4;
                break;
            case HOLD_EFFECT_LAGGING_TAIL:
            case HOLD_EFFECT_STICKY_BARB:
                break;
            default:
                score += 3;
                break;
            }
        }
        break;
    case EFFECT_SKILL_SWAP:
        if (GetAbilityRating(AI_DATA->defAbility) > GetAbilityRating(AI_DATA->atkAbility))
            score++;
        break;
    case EFFECT_WORRY_SEED:
    case EFFECT_GASTRO_ACID:
    case EFFECT_SIMPLE_BEAM:
        if (IsAbilityOfRating(AI_DATA->defAbility, 5))
            score += 2;
        break;
    case EFFECT_ENTRAINMENT:
        if (IsAbilityOfRating(AI_DATA->defAbility, 5) || GetAbilityRating(AI_DATA->atkAbility) <= 0)
        {
            if (AI_DATA->defAbility != AI_DATA->atkAbility && !(gStatuses3[battlerDef] & STATUS3_GASTRO_ACID))
                score += 2;
        }                        
        break;
    case EFFECT_IMPRISON:
        if (predictedMove != MOVE_NONE && HasMove(battlerAtk, predictedMove))
            score += 3;
        else if (gDisableStructs[battlerAtk].isFirstTurn == 0)
            score++;
        break;
    case EFFECT_REFRESH:
        if (gBattleMons[battlerAtk].status1 & STATUS1_ANY)
            score += 2;
        break;
    case EFFECT_PSYCHO_SHIFT:
        if (gBattleMons[battlerAtk].status1 & STATUS1_PSN_ANY)
            IncreasePoisonScore(battlerAtk, battlerDef, move, &score);
        else if (gBattleMons[battlerAtk].status1 & STATUS1_BURN)
            IncreaseBurnScore(battlerAtk, battlerDef, move, &score);
        else if (gBattleMons[battlerAtk].status1 & STATUS1_PARALYSIS)
            IncreaseParalyzeScore(battlerAtk, battlerDef, move, &score);
        else if (gBattleMons[battlerAtk].status1 & STATUS1_SLEEP)
            IncreaseSleepScore(battlerAtk, battlerDef, move, &score);
        break;
    case EFFECT_GRUDGE:
        break;
    case EFFECT_SNATCH:
        if (predictedMove != MOVE_NONE && TestMoveFlags(predictedMove, FLAG_SNATCH_AFFECTED))
            score += 3; // Steal move
        break;
    case EFFECT_MUD_SPORT:
        if (!HasMoveWithType(battlerAtk, TYPE_ELECTRIC) && HasMoveWithType(battlerDef, TYPE_ELECTRIC))
            score++;
        break;
    case EFFECT_WATER_SPORT:
        if (!HasMoveWithType(battlerAtk, TYPE_FIRE) && (HasMoveWithType(battlerDef, TYPE_FIRE)))
            score++;
        break;
    case EFFECT_TICKLE:
        if (gBattleMons[battlerDef].statStages[STAT_DEF] > 4 && HasMoveWithSplit(battlerAtk, SPLIT_PHYSICAL)
          && AI_DATA->defAbility != ABILITY_CONTRARY && ShouldLowerDefense(battlerAtk, battlerDef, AI_DATA->defAbility))
        {
            score += 2;
        }
        else if (ShouldLowerAttack(battlerAtk, battlerDef, AI_DATA->defAbility))
        {
            score += 2;
        }
        break;
    case EFFECT_COSMIC_POWER:
        IncreaseStatUpScore(battlerAtk, battlerDef, STAT_DEF, &score);
        IncreaseStatUpScore(battlerAtk, battlerDef, STAT_SPDEF, &score);
        break;
    case EFFECT_BULK_UP:
        IncreaseStatUpScore(battlerAtk, battlerDef, STAT_ATK, &score);
        IncreaseStatUpScore(battlerAtk, battlerDef, STAT_DEF, &score);
        break;
    case EFFECT_CALM_MIND:
        IncreaseStatUpScore(battlerAtk, battlerDef, STAT_SPATK, &score);
        IncreaseStatUpScore(battlerAtk, battlerDef, STAT_SPDEF, &score);
        break;
    case EFFECT_GEOMANCY:
        if (AI_DATA->atkHoldEffect == HOLD_EFFECT_POWER_HERB)
            score += 3;
        //fallthrough
    case EFFECT_QUIVER_DANCE:
        IncreaseStatUpScore(battlerAtk, battlerDef, STAT_SPEED, &score);
        IncreaseStatUpScore(battlerAtk, battlerDef, STAT_SPATK, &score);
        IncreaseStatUpScore(battlerAtk, battlerDef, STAT_SPDEF, &score);
        break;
    case EFFECT_SHELL_SMASH:
        if (AI_DATA->atkHoldEffect == HOLD_EFFECT_POWER_HERB)
            score += 3;
        
        IncreaseStatUpScore(battlerAtk, battlerDef, STAT_SPEED, &score);
        IncreaseStatUpScore(battlerAtk, battlerDef, STAT_SPATK, &score);
        IncreaseStatUpScore(battlerAtk, battlerDef, STAT_ATK, &score);
        break;
    case EFFECT_DRAGON_DANCE:
    case EFFECT_SHIFT_GEAR:
        IncreaseStatUpScore(battlerAtk, battlerDef, STAT_SPEED, &score);
        IncreaseStatUpScore(battlerAtk, battlerDef, STAT_ATK, &score);
        break;
    case EFFECT_GUARD_SWAP:
        if (gBattleMons[battlerDef].statStages[STAT_DEF] > gBattleMons[battlerAtk].statStages[STAT_DEF]
          && gBattleMons[battlerDef].statStages[STAT_SPDEF] >= gBattleMons[battlerAtk].statStages[STAT_SPDEF])
            score++;
        else if (gBattleMons[battlerDef].statStages[STAT_SPDEF] > gBattleMons[battlerAtk].statStages[STAT_SPDEF]
          && gBattleMons[battlerDef].statStages[STAT_DEF] >= gBattleMons[battlerAtk].statStages[STAT_DEF])
            score++;
        break;
    case EFFECT_POWER_SWAP:
        if (gBattleMons[battlerDef].statStages[STAT_ATK] > gBattleMons[battlerAtk].statStages[STAT_ATK]
          && gBattleMons[battlerDef].statStages[STAT_SPATK] >= gBattleMons[battlerAtk].statStages[STAT_SPATK])
            score++;
        else if (gBattleMons[battlerDef].statStages[STAT_SPATK] > gBattleMons[battlerAtk].statStages[STAT_SPATK]
          && gBattleMons[battlerDef].statStages[STAT_ATK] >= gBattleMons[battlerAtk].statStages[STAT_ATK])
            score++;
        break;
    case EFFECT_POWER_TRICK:
        if (!(gStatuses3[battlerAtk] & STATUS3_POWER_TRICK))
        {
            if (gBattleMons[battlerAtk].defense > gBattleMons[battlerAtk].attack && HasMoveWithSplit(battlerAtk, SPLIT_PHYSICAL))
                score += 2;
            break;
        }
        break;
    case EFFECT_HEART_SWAP:
        {
            bool32 hasHigherStat = FALSE;
            //Only use if all target stats are >= attacker stats to prevent infinite loop
            for (i = STAT_ATK; i < NUM_BATTLE_STATS; i++)
            {
                if (gBattleMons[battlerDef].statStages[i] < gBattleMons[battlerAtk].statStages[i])
                    break;
                if (gBattleMons[battlerDef].statStages[i] > gBattleMons[battlerAtk].statStages[i])
                    hasHigherStat = TRUE;
            }
            if (hasHigherStat && i == NUM_BATTLE_STATS)
                score++;
        }
        break;
    case EFFECT_SPEED_SWAP:
        // TODO this is cheating a bit...
        if (gBattleMons[battlerDef].speed > gBattleMons[battlerAtk].speed)
            score += 3;
        break;
    case EFFECT_GUARD_SPLIT:
        {
            // TODO also kind of cheating...
            u16 newDefense = (gBattleMons[battlerAtk].defense + gBattleMons[battlerDef].defense) / 2;
            u16 newSpDef = (gBattleMons[battlerAtk].spDefense + gBattleMons[battlerDef].spDefense) / 2;

            if ((newDefense > gBattleMons[battlerAtk].defense && newSpDef >= gBattleMons[battlerAtk].spDefense)
              || (newSpDef > gBattleMons[battlerAtk].spDefense && newDefense >= gBattleMons[battlerAtk].defense))
                score++;
        }
        break;
    case EFFECT_POWER_SPLIT:
        {
            u16 newAttack = (gBattleMons[battlerAtk].attack + gBattleMons[battlerDef].attack) / 2;
            u16 newSpAtk = (gBattleMons[battlerAtk].spAttack + gBattleMons[battlerDef].spAttack) / 2;

            if ((newAttack > gBattleMons[battlerAtk].attack && newSpAtk >= gBattleMons[battlerAtk].spAttack)
              || (newSpAtk > gBattleMons[battlerAtk].spAttack && newAttack >= gBattleMons[battlerAtk].attack))
                score++;
        }
        break;
    case EFFECT_BUG_BITE:   // And pluck
        if (gBattleMons[battlerDef].status2 & STATUS2_SUBSTITUTE || AI_DATA->defAbility == ABILITY_STICKY_HOLD)
            break;
        else if (ItemId_GetPocket(AI_DATA->defItem) == POCKET_BERRIES)
            score += 3;
        break;
    case EFFECT_INCINERATE:
        if (gBattleMons[battlerDef].status2 & STATUS2_SUBSTITUTE || AI_DATA->defAbility == ABILITY_STICKY_HOLD)
            break;
        else if (ItemId_GetPocket(AI_DATA->defItem) == POCKET_BERRIES || AI_DATA->defHoldEffect == HOLD_EFFECT_GEMS)
            score += 3;
        break;
    case EFFECT_SMACK_DOWN:
        if (!IsBattlerGrounded(battlerDef))
            score += 3;
        break;
    case EFFECT_SLEEP_HIT:  // Relic Song
        #if (defined SPECIES_MELOETTA && defined SPECIES_MELOETTA_PIROUETTE)
        if (AI_DATA->atkSpecies == SPECIES_MELOETTA && gBattleMons[battlerDef].defense < gBattleMons[battlerDef].spDefense)
            score += 3; // Change to pirouette if can do more damage
        else if (AI_DATA->atkSpecies == SPECIES_MELOETTA_PIROUETTE && gBattleMons[battlerDef].spDefense < gBattleMons[battlerDef].defense)
            score += 3; // Change to Aria if can do more damage
        #endif
        break;
    case EFFECT_ELECTRIC_TERRAIN:
    case EFFECT_MISTY_TERRAIN:
        if (gStatuses3[battlerAtk] & STATUS3_YAWN && IsBattlerGrounded(battlerAtk))
            score += 10;
        //fallthrough
    case EFFECT_GRASSY_TERRAIN:    
    case EFFECT_PSYCHIC_TERRAIN:
        score += 2;
        if (AI_DATA->atkHoldEffect == HOLD_EFFECT_TERRAIN_EXTENDER)
            score += 2;
        break;
    case EFFECT_PLEDGE:
        if (isDoubleBattle)
        {
            if (HasMoveEffect(AI_DATA->battlerAtkPartner, EFFECT_PLEDGE))
                score += 3; // Partner might use pledge move
        }
        break;
    case EFFECT_TRICK_ROOM:
        if (!(gFieldStatuses & STATUS_FIELD_TRICK_ROOM) && GetBattlerSideSpeedAverage(battlerAtk) < GetBattlerSideSpeedAverage(battlerDef))
            score += 3;
        else if ((gFieldStatuses & STATUS_FIELD_TRICK_ROOM) && GetBattlerSideSpeedAverage(battlerAtk) >= GetBattlerSideSpeedAverage(battlerDef))
            score += 3;
        break;
    case EFFECT_MAGIC_ROOM:
        score++;
        if (AI_DATA->atkHoldEffect == HOLD_EFFECT_NONE && AI_DATA->defHoldEffect != HOLD_EFFECT_NONE)
            score++;
        if (isDoubleBattle && AI_DATA->atkPartnerHoldEffect == HOLD_EFFECT_NONE && AI_DATA->defPartnerHoldEffect != HOLD_EFFECT_NONE)
            score++;
        break;
    case EFFECT_WONDER_ROOM:
        if ((HasMoveWithSplit(battlerDef, SPLIT_PHYSICAL) && gBattleMons[battlerAtk].defense < gBattleMons[battlerAtk].spDefense)
          || (HasMoveWithSplit(battlerDef, SPLIT_SPECIAL) && gBattleMons[battlerAtk].spDefense < gBattleMons[battlerAtk].defense))
            score += 2;
        break;
    case EFFECT_GRAVITY:
        if (!(gFieldStatuses & STATUS_FIELD_GRAVITY))
        {
            if (HasSleepMoveWithLowAccuracy(battlerAtk, battlerDef)) // Has Gravity for a move like Hypnosis
                IncreaseSleepScore(battlerAtk, battlerDef, move, &score);
            else if (HasMoveWithLowAccuracy(battlerAtk, battlerDef, 90, FALSE, AI_DATA->atkAbility, AI_DATA->defAbility, AI_DATA->atkHoldEffect, AI_DATA->defHoldEffect))
                score += 2;
            else
                score++;
        }
        break;
    case EFFECT_ION_DELUGE:
        if ((AI_DATA->atkAbility == ABILITY_VOLT_ABSORB
          || AI_DATA->atkAbility == ABILITY_MOTOR_DRIVE
          || AI_DATA->atkAbility == ABILITY_LIGHTNING_ROD)
          && gBattleMoves[predictedMove].type == TYPE_NORMAL)
            score += 2;
        break;
    case EFFECT_FLING:
        /* TODO
        switch (gFlingTable[AI_DATA->atkItem].effect)
        {
        case MOVE_EFFECT_BURN:
            IncreaseBurnScore(battlerAtk, battlerDef, move, &score);
            break;
        case MOVE_EFFECT_FLINCH:
            score += ShouldTryToFlinch(battlerAtk, battlerDef, AI_DATA->atkAbility, AI_DATA->defAbility, move);
            break;
        case MOVE_EFFECT_PARALYSIS:
            IncreaseParalyzeScore(battlerAtk, battlerDef, move, &score);
            break;
        case MOVE_EFFECT_POISON:
        case MOVE_EFFECT_TOXIC:
            IncreasePoisonScore(battlerAtk, battlerDef, move, &score);
            break;
        case MOVE_EFFECT_FREEZE:
            if (AI_CanFreeze(battlerAtk, battlerDef))
                score += 3;
            break;
        }*/
        break;
    case EFFECT_FEINT:
        if (gBattleMoves[predictedMove].effect == EFFECT_PROTECT)
            score += 3;
        break;
    case EFFECT_EMBARGO:
        if (AI_DATA->defHoldEffect != HOLD_EFFECT_NONE)
            score++;
        break;
    case EFFECT_POWDER:
        if (predictedMove != MOVE_NONE && !IS_MOVE_STATUS(predictedMove) && gBattleMoves[predictedMove].type == TYPE_FIRE)
            score += 3;
        break;
    case EFFECT_TELEKINESIS:
        if (HasMoveWithLowAccuracy(battlerAtk, battlerDef, 90, FALSE, AI_DATA->atkAbility, AI_DATA->defAbility, AI_DATA->atkHoldEffect, AI_DATA->defHoldEffect)
          || !IsBattlerGrounded(battlerDef))
            score++;
        break;
    case EFFECT_THROAT_CHOP:
        if (predictedMove != MOVE_NONE && TestMoveFlags(predictedMove, FLAG_SOUND) && GetWhoStrikesFirst(battlerAtk, battlerDef, TRUE) == 0)
            score += 3; // Ai goes first and predicts the target will use a sound move
        else if (TestMoveFlagsInMoveset(battlerDef, FLAG_SOUND))
            score += 3;
        break;
    case EFFECT_HEAL_BLOCK:
        if (GetWhoStrikesFirst(battlerAtk, battlerDef, TRUE) == 0 && predictedMove != MOVE_NONE && IsHealingMoveEffect(gBattleMoves[predictedMove].effect))
            score += 3; // Try to cancel healing move
        else if (HasHealingEffect(battlerDef) || AI_DATA->defHoldEffect == HOLD_EFFECT_LEFTOVERS
          || (AI_DATA->defHoldEffect == HOLD_EFFECT_BLACK_SLUDGE && IS_BATTLER_OF_TYPE(battlerDef, TYPE_POISON)))
            score += 2;
        break;
    case EFFECT_SOAK:
        if (HasMoveWithType(battlerAtk, TYPE_ELECTRIC) || HasMoveWithType(battlerAtk, TYPE_GRASS) || HasMoveEffect(battlerAtk, EFFECT_FREEZE_DRY))
            score += 2; // Get some super effective moves
        break;
    case EFFECT_THIRD_TYPE:
        if (AI_DATA->defAbility == ABILITY_WONDER_GUARD)
            score += 2; // Give target more weaknesses
        break;
    case EFFECT_ELECTRIFY:
        if (predictedMove != MOVE_NONE && gBattleMoves[predictedMove].type == TYPE_NORMAL
         && (AI_DATA->atkAbility == ABILITY_VOLT_ABSORB
          || AI_DATA->atkAbility == ABILITY_MOTOR_DRIVE
          || AI_DATA->atkAbility == ABILITY_LIGHTNING_ROD))
        {
            score += 3;
        }
        break;
    case EFFECT_TOPSY_TURVY:
        if (CountPositiveStatStages(battlerDef) > CountNegativeStatStages(battlerDef))
            score++;
        break;
    case EFFECT_FAIRY_LOCK:
        if (!IsBattlerTrapped(battlerDef, TRUE))
        {
            if (ShouldTrap(battlerAtk, battlerDef, move))
                score += 8;
        }
        break;
    case EFFECT_QUASH:
        if (isDoubleBattle
          && GetWhoStrikesFirst(AI_DATA->battlerAtkPartner, battlerDef, TRUE) == 1) // Attacker partner wouldn't go before target
            score++;
        break;
    case EFFECT_TAILWIND:
        if (GetBattlerSideSpeedAverage(battlerAtk) < GetBattlerSideSpeedAverage(battlerDef))
            score += 2;
        break;
    case EFFECT_LUCKY_CHANT:
        if (!isDoubleBattle)
        {
            score++;
        }
        else
        {
            if (CountUsablePartyMons(battlerDef) > 0)
                score += 8;
        }
        break;
    case EFFECT_MAGNET_RISE:
        if (IsBattlerGrounded(battlerAtk) && HasDamagingMoveOfType(battlerDef, TYPE_ELECTRIC)
          && !(AI_GetTypeEffectiveness(MOVE_EARTHQUAKE, battlerDef, battlerAtk) == AI_EFFECTIVENESS_x0)) // Doesn't resist ground move
        {
            if (GetWhoStrikesFirst(battlerAtk, battlerDef, TRUE) == 0) // Attacker goes first
            {
                if (gBattleMoves[predictedMove].type == TYPE_GROUND)
                    score += 3; // Cause the enemy's move to fail
                break;
            }
            else // Opponent Goes First
            {
                if (HasDamagingMoveOfType(battlerDef, TYPE_GROUND))
                    score += 2;
                break;
            }
        }
        break;
    case EFFECT_CAMOUFLAGE:
        if (predictedMove != MOVE_NONE && GetWhoStrikesFirst(battlerAtk, battlerDef, TRUE) == 0 // Attacker goes first
          && !IS_MOVE_STATUS(move) && AI_GetTypeEffectiveness(predictedMove, battlerDef, battlerAtk) != AI_EFFECTIVENESS_x0)
            score++;
        break;
    case EFFECT_FLAME_BURST:
        if (isDoubleBattle)
        {
            if (IsBattlerAlive(AI_DATA->battlerDefPartner)
              && GetHealthPercentage(AI_DATA->battlerDefPartner) < 12
              && AI_DATA->defPartnerAbility != ABILITY_MAGIC_GUARD
              && !IS_BATTLER_OF_TYPE(AI_DATA->battlerDefPartner, TYPE_FIRE))
                score++;
        }
        break;
    case EFFECT_TOXIC_THREAD:
        IncreasePoisonScore(battlerAtk, battlerDef, move, &score);
        IncreaseStatUpScore(battlerAtk, battlerDef, STAT_SPEED, &score);
        break;
    case EFFECT_TWO_TURNS_ATTACK:
    case EFFECT_SKULL_BASH:
    case EFFECT_SOLARBEAM:
        if (AI_DATA->atkHoldEffect == HOLD_EFFECT_POWER_HERB)
            score += 2;
        break;
    case EFFECT_COUNTER:
        if (!IsBattlerIncapacitated(battlerDef, AI_DATA->defAbility) && predictedMove != MOVE_NONE)
        {
            if (gDisableStructs[battlerDef].tauntTimer != 0)
                score++;    // target must use damaging move
            if (GetMoveDamageResult(predictedMove) >= MOVE_POWER_GOOD && GetBattleMoveSplit(predictedMove) == SPLIT_PHYSICAL)
                score += 3;
        }
        break;
    case EFFECT_MIRROR_COAT:
        if (!IsBattlerIncapacitated(battlerDef, AI_DATA->defAbility) && predictedMove != MOVE_NONE)
        {
            if (gDisableStructs[battlerDef].tauntTimer != 0)
                score++;    // target must use damaging move
            if (GetMoveDamageResult(predictedMove) >= MOVE_POWER_GOOD && GetBattleMoveSplit(predictedMove) == SPLIT_SPECIAL)
                score += 3;
        }
        break;
    case EFFECT_FLAIL:
        if (GetWhoStrikesFirst(battlerAtk, battlerDef, TRUE) == 0)  // Ai goes first
        {
            if (GetHealthPercentage(battlerAtk) < 20)
                score++;
            else if (GetHealthPercentage(battlerAtk) < 8)
                score += 2;
        }
        break;
    case EFFECT_SHORE_UP:
        if (AI_WeatherHasEffect() && (gBattleWeather & WEATHER_SANDSTORM_ANY)
          && ShouldRecover(battlerAtk, battlerDef, move, 67))
            score += 3;
        else if (ShouldRecover(battlerAtk, battlerDef, move, 50))
            score += 2;
        break;
    case EFFECT_FACADE:
        if (gBattleMons[battlerAtk].status1 & (STATUS1_POISON | STATUS1_BURN | STATUS1_PARALYSIS | STATUS1_TOXIC_POISON))
            score++;
        break;
    case EFFECT_FOCUS_PUNCH:
        if (!isDoubleBattle && effectiveness > AI_EFFECTIVENESS_x0_5)
        {
            if (IsBattlerIncapacitated(battlerDef, AI_DATA->defAbility))
                score += 2;
            else if (gBattleMons[battlerDef].status2 & (STATUS2_INFATUATION | STATUS2_CONFUSION))
                score++;
        }
        break;
    case EFFECT_SMELLINGSALT:
        if (gBattleMons[battlerDef].status1 & STATUS1_PARALYSIS)
            score += 2;
        break;
    case EFFECT_WAKE_UP_SLAP:
        if (gBattleMons[battlerDef].status1 & STATUS1_SLEEP)
            score += 2;
        break;
    case EFFECT_REVENGE:
        if (!(gBattleMons[battlerDef].status1 & STATUS1_SLEEP)
          &&  !(gBattleMons[battlerDef].status2 & (STATUS2_INFATUATION | STATUS2_CONFUSION)))
            score += 2;
        break;
    case EFFECT_ENDEAVOR:
        if (GetWhoStrikesFirst(battlerAtk, battlerDef, TRUE) == 1)  // Opponent faster
        {
            if (GetHealthPercentage(battlerAtk) < 40)
                score++;
        }
        else if (GetHealthPercentage(battlerAtk) < 50)
        {
            score++;
        }
        break;
    //case EFFECT_EXTREME_EVOBOOST: // TODO
        //break;
    //case EFFECT_CLANGOROUS_SOUL:  // TODO
        //break;
    //case EFFECT_NO_RETREAT:       // TODO
        //break;
    //case EFFECT_SKY_DROP
        //break;
    } // move effect checks
    
    return score;
}

// Effects that are encouraged on the first turn of battle
static s16 AI_SetupFirstTurn(u8 battlerAtk, u8 battlerDef, u16 move, s16 score)
{
    if (IsTargetingPartner(battlerAtk, battlerDef)
      || gBattleResults.battleTurnCounter != 0)
        return score;
    
    if (AI_THINKING_STRUCT->aiFlags & AI_FLAG_SMART_SWITCHING 
      && GetWhoStrikesFirst(battlerAtk, battlerDef, TRUE) == 1
      && CanTargetFaintAi(battlerDef, battlerAtk)
      && GetMovePriority(battlerAtk, move) == 0)
    {
        RETURN_SCORE_MINUS(20);    // No point in setting up if you will faint. Should just switch if possible..
    }
    
    // check effects to prioritize first turn
    switch (gBattleMoves[move].effect)
    {
    case EFFECT_ATTACK_UP:
    case EFFECT_DEFENSE_UP:
    case EFFECT_SPEED_UP:
    case EFFECT_SPECIAL_ATTACK_UP:
    case EFFECT_SPECIAL_DEFENSE_UP:
    case EFFECT_ACCURACY_UP:
    case EFFECT_EVASION_UP:
    case EFFECT_ATTACK_DOWN:
    case EFFECT_DEFENSE_DOWN:
    case EFFECT_SPEED_DOWN:
    case EFFECT_SPECIAL_ATTACK_DOWN:
    case EFFECT_SPECIAL_DEFENSE_DOWN:
    case EFFECT_ACCURACY_DOWN:
    case EFFECT_EVASION_DOWN:
    case EFFECT_CONVERSION:
    case EFFECT_LIGHT_SCREEN:
    case EFFECT_FOCUS_ENERGY:
    case EFFECT_CONFUSE:
    case EFFECT_ATTACK_UP_2:
    case EFFECT_DEFENSE_UP_2:
    case EFFECT_DEFENSE_UP_3:
    case EFFECT_SPEED_UP_2:
    case EFFECT_SPECIAL_ATTACK_UP_2:
    case EFFECT_SPECIAL_ATTACK_UP_3:
    case EFFECT_SPECIAL_DEFENSE_UP_2:
    case EFFECT_ACCURACY_UP_2:
    case EFFECT_EVASION_UP_2:
    case EFFECT_ATTACK_DOWN_2:
    case EFFECT_DEFENSE_DOWN_2:
    case EFFECT_SPEED_DOWN_2:
    case EFFECT_SPECIAL_ATTACK_DOWN_2:
    case EFFECT_SPECIAL_DEFENSE_DOWN_2:
    case EFFECT_ACCURACY_DOWN_2:
    case EFFECT_EVASION_DOWN_2:
    case EFFECT_REFLECT:
    case EFFECT_POISON:
    case EFFECT_PARALYZE:
    case EFFECT_SUBSTITUTE:
    case EFFECT_LEECH_SEED:
    case EFFECT_MINIMIZE:
    case EFFECT_CURSE:
    case EFFECT_SWAGGER:
    case EFFECT_CAMOUFLAGE:
    case EFFECT_YAWN:
    case EFFECT_DEFENSE_CURL:
    case EFFECT_TORMENT:
    case EFFECT_FLATTER:
    case EFFECT_WILL_O_WISP:
    case EFFECT_INGRAIN:
    case EFFECT_IMPRISON:
    case EFFECT_TEETER_DANCE:
    case EFFECT_TICKLE:
    case EFFECT_COSMIC_POWER:
    case EFFECT_BULK_UP:
    case EFFECT_CALM_MIND:
    case EFFECT_ACUPRESSURE:
    case EFFECT_AUTOTOMIZE:
    case EFFECT_SHIFT_GEAR:
    case EFFECT_SHELL_SMASH:
    case EFFECT_GROWTH:
    case EFFECT_QUIVER_DANCE:
    case EFFECT_ATTACK_SPATK_UP:
    case EFFECT_ATTACK_ACCURACY_UP:
    case EFFECT_PSYCHIC_TERRAIN:
    case EFFECT_GRASSY_TERRAIN:
    case EFFECT_ELECTRIC_TERRAIN:
    case EFFECT_MISTY_TERRAIN:
    case EFFECT_STEALTH_ROCK:
    case EFFECT_TOXIC_SPIKES:
    case EFFECT_TRICK_ROOM:
    case EFFECT_WONDER_ROOM:
    case EFFECT_MAGIC_ROOM:
    case EFFECT_TAILWIND:
    case EFFECT_DRAGON_DANCE:
    case EFFECT_STICKY_WEB:
    case EFFECT_RAIN_DANCE:
    case EFFECT_SUNNY_DAY:
    case EFFECT_SANDSTORM:
    case EFFECT_HAIL:
    case EFFECT_GEOMANCY:
        score += 2;
        break;
    default:
        break;
    }
    
    return score;
}

// Adds score bonus to 'riskier' move effects and high crit moves
static s16 AI_Risky(u8 battlerAtk, u8 battlerDef, u16 move, s16 score)
{
    if (IsTargetingPartner(battlerAtk, battlerDef))
        return score;
    
    if (TestMoveFlags(move, FLAG_HIGH_CRIT))
        score += 2;
    
    switch (gBattleMoves[move].effect)
    {
    case EFFECT_SLEEP:
    case EFFECT_EXPLOSION:
    case EFFECT_MIRROR_MOVE:
    case EFFECT_OHKO:
    case EFFECT_CONFUSE:
    case EFFECT_METRONOME:
    case EFFECT_PSYWAVE:
    case EFFECT_COUNTER:
    case EFFECT_DESTINY_BOND:
    case EFFECT_SWAGGER:
    case EFFECT_ATTRACT:
    case EFFECT_PRESENT:
    case EFFECT_ALL_STATS_UP_HIT:
    case EFFECT_BELLY_DRUM:
    case EFFECT_MIRROR_COAT:
    case EFFECT_FOCUS_PUNCH:
    case EFFECT_REVENGE:
    case EFFECT_TEETER_DANCE:
        if (Random() & 1)
            score += 2;
        break;
    default:
        break;
    }
    
    return score;
}

// Adds score bonus to best powered move
static s16 AI_PreferStrongestMove(u8 battlerAtk, u8 battlerDef, u16 move, s16 score)
{
    if (IsTargetingPartner(battlerAtk, battlerDef))
        return score;
    
    if (GetMoveDamageResult(move) == MOVE_POWER_BEST)
        score += 2;
    
    return score;
}

// Prefers moves that are good for baton pass
static s16 AI_PreferBatonPass(u8 battlerAtk, u8 battlerDef, u16 move, s16 score)
{
    u32 i;
    
    if (IsTargetingPartner(battlerAtk, battlerDef)
      || CountUsablePartyMons(battlerAtk) == 0
      || GetMoveDamageResult(move) != MOVE_POWER_DISCOURAGED
      || !HasMoveEffect(battlerAtk, EFFECT_BATON_PASS)
      || IsBattlerTrapped(battlerAtk, TRUE))
        return score;
    
    if (IsStatRaisingEffect(gBattleMoves[move].effect))
    {
        if (gBattleResults.battleTurnCounter == 0)
            score += 5;
        else if (GetHealthPercentage(battlerAtk) < 60)
            score -= 10;
        else
            score++;        
    }
     
    // other specific checks
    switch (gBattleMoves[move].effect)
    {
    case EFFECT_INGRAIN:
        if (!(gStatuses3[battlerAtk] & STATUS3_ROOTED))
            score += 2;
        break;
    case EFFECT_AQUA_RING:
        if (!(gStatuses3[battlerAtk] & STATUS3_AQUA_RING))
            score += 2;
        break;
    case EFFECT_PROTECT:
        if (gLastMoves[battlerAtk] == MOVE_PROTECT || gLastMoves[battlerAtk] == MOVE_DETECT)
            score -= 2;
        else
            score += 2;
        break;
    case EFFECT_BATON_PASS:
        for (i = STAT_ATK; i < NUM_BATTLE_STATS; i++)
        {
            IncreaseStatUpScore(battlerAtk, battlerDef, i, &score);
        }
        if (gStatuses3[battlerAtk] & (STATUS3_ROOTED | STATUS3_AQUA_RING))
            score += 2;
        if (gStatuses3[battlerAtk] & STATUS3_LEECHSEED)
            score -= 3; 
        break;
    default:
        break;
    }
    
    return score;
}

static s16 AI_HPAware(u8 battlerAtk, u8 battlerDef, u16 move, s16 score)
{
    u16 effect = gBattleMoves[move].effect;
    u8 moveType = gBattleMoves[move].type;
    
    if (IsTargetingPartner(battlerAtk, battlerDef))
    {
        if ((effect == EFFECT_HEAL_PULSE || effect == EFFECT_HIT_ENEMY_HEAL_ALLY)
         || (moveType == TYPE_ELECTRIC && AI_DATA->atkPartnerAbility == ABILITY_VOLT_ABSORB)
         || (moveType == TYPE_WATER && (AI_DATA->atkPartnerAbility == ABILITY_DRY_SKIN || AI_DATA->atkPartnerAbility == ABILITY_WATER_ABSORB)))
        {
            if (CanTargetFaintAi(FOE(battlerAtk), AI_DATA->battlerAtkPartner)
              || (CanTargetFaintAi(BATTLE_PARTNER(FOE(battlerAtk)), AI_DATA->battlerAtkPartner)))
                score--;
            
            if (GetHealthPercentage(battlerDef) <= 50)
                score++;
        }
    }
    else
    {
        // Consider AI HP
        if (GetHealthPercentage(battlerAtk) > 70)
        {
            // high hp
            switch (effect)
            {
            case EFFECT_EXPLOSION:
            case EFFECT_RESTORE_HP:
            case EFFECT_REST:
            case EFFECT_DESTINY_BOND:
            case EFFECT_FLAIL:
            case EFFECT_ENDURE:
            case EFFECT_MORNING_SUN:
            case EFFECT_SYNTHESIS:
            case EFFECT_MOONLIGHT:
            case EFFECT_SHORE_UP:
            case EFFECT_SOFTBOILED:
            case EFFECT_ROOST:
            case EFFECT_MEMENTO:
            case EFFECT_GRUDGE:
            case EFFECT_OVERHEAT:
                score -= 2;
                break;
            default:
                break;
            }
        }
        else if (GetHealthPercentage(battlerAtk) > 30)
        {
            // med hp
            if (IsStatRaisingEffect(effect) || IsStatLoweringEffect(effect))
                score -= 2;
            
            switch (effect)
            {
            case EFFECT_EXPLOSION:
            case EFFECT_BIDE:
            case EFFECT_CONVERSION:
            case EFFECT_LIGHT_SCREEN:
            case EFFECT_MIST:
            case EFFECT_FOCUS_ENERGY:
            case EFFECT_CONVERSION_2:
            case EFFECT_SAFEGUARD:
            case EFFECT_BELLY_DRUM:
                score -= 2;
                break;
            default:
                break;
            }
        }
        else
        {
            // low hp
            if (IsStatRaisingEffect(effect) || IsStatLoweringEffect(effect))
                score -= 2;
            
            // check other discouraged low hp effects
            switch (effect)
            {
            case EFFECT_BIDE:
            case EFFECT_CONVERSION:
            case EFFECT_REFLECT:
            case EFFECT_LIGHT_SCREEN:
            case EFFECT_AURORA_VEIL:
            case EFFECT_MIST:
            case EFFECT_FOCUS_ENERGY:
            case EFFECT_RAGE:
            case EFFECT_CONVERSION_2:
            case EFFECT_LOCK_ON:
            case EFFECT_SAFEGUARD:
            case EFFECT_BELLY_DRUM:
            case EFFECT_PSYCH_UP:
            case EFFECT_MIRROR_COAT:
            case EFFECT_SOLARBEAM:
            case EFFECT_TWO_TURNS_ATTACK:
            case EFFECT_ERUPTION:
            case EFFECT_TICKLE:
            case EFFECT_SUNNY_DAY:
            case EFFECT_SANDSTORM:
            case EFFECT_HAIL:
            case EFFECT_RAIN_DANCE:
                score -= 2;
                break;
            default:
                break;
            }
        }
    }
    
    // consider target HP
    if (CanAttackerFaintTarget(battlerAtk, battlerDef, AI_THINKING_STRUCT->movesetIndex, 0))
    {
        score += 2;
    }
    else
    {
        if (GetHealthPercentage(battlerDef) > 70)
        {
            // high HP
            ; // nothing yet
        }
        else if (GetHealthPercentage(battlerDef) > 30)
        {
            // med HP - check discouraged effects
            switch (effect)
            {
            case EFFECT_ATTACK_UP:
            case EFFECT_DEFENSE_UP:
            case EFFECT_SPEED_UP:
            case EFFECT_SPECIAL_ATTACK_UP:
            case EFFECT_SPECIAL_DEFENSE_UP:
            case EFFECT_ACCURACY_UP:
            case EFFECT_EVASION_UP:
            case EFFECT_ATTACK_DOWN:
            case EFFECT_DEFENSE_DOWN:
            case EFFECT_SPEED_DOWN:
            case EFFECT_SPECIAL_ATTACK_DOWN:
            case EFFECT_SPECIAL_DEFENSE_DOWN:
            case EFFECT_ACCURACY_DOWN:
            case EFFECT_EVASION_DOWN:
            case EFFECT_MIST:
            case EFFECT_FOCUS_ENERGY:
            case EFFECT_ATTACK_UP_2:
            case EFFECT_DEFENSE_UP_2:
            case EFFECT_SPEED_UP_2:
            case EFFECT_SPECIAL_ATTACK_UP_2:
            case EFFECT_SPECIAL_DEFENSE_UP_2:
            case EFFECT_ACCURACY_UP_2:
            case EFFECT_EVASION_UP_2:
            case EFFECT_ATTACK_DOWN_2:
            case EFFECT_DEFENSE_DOWN_2:
            case EFFECT_SPEED_DOWN_2:
            case EFFECT_SPECIAL_ATTACK_DOWN_2:
            case EFFECT_SPECIAL_DEFENSE_DOWN_2:
            case EFFECT_ACCURACY_DOWN_2:
            case EFFECT_EVASION_DOWN_2:
            case EFFECT_POISON:
            case EFFECT_PAIN_SPLIT:
            case EFFECT_PERISH_SONG:
            case EFFECT_SAFEGUARD:
            case EFFECT_TICKLE:
            case EFFECT_COSMIC_POWER:
            case EFFECT_BULK_UP:
            case EFFECT_CALM_MIND:
            case EFFECT_DRAGON_DANCE:
            case EFFECT_DEFENSE_UP_3:
            case EFFECT_SPECIAL_ATTACK_UP_3:
                score -= 2;
                break;
            default:
                break;
            }
        }
        else
        {
            // low HP
            if (IS_MOVE_STATUS(move))
                score -= 2; // don't use status moves if target is at low health
        }
    }
    
    return score;
}

static void AI_Flee(void)
{
    AI_THINKING_STRUCT->aiAction |= (AI_ACTION_DONE | AI_ACTION_FLEE | AI_ACTION_DO_NOT_ATTACK);
}

static void AI_Watch(void)
{
    AI_THINKING_STRUCT->aiAction |= (AI_ACTION_DONE | AI_ACTION_WATCH | AI_ACTION_DO_NOT_ATTACK);
}

// Roaming pokemon logic
static s16 AI_Roaming(u8 battlerAtk, u8 battlerDef, u16 move, s16 score)
{
    if (IsBattlerTrapped(battlerAtk, FALSE))
        return score;
    
    AI_Flee();
    return score;
}

// Safari pokemon logic
static s16 AI_Safari(u8 battlerAtk, u8 battlerDef, u16 move, s16 score)
{
    u8 safariFleeRate = gBattleStruct->safariEscapeFactor * 5; // Safari flee rate, from 0-20.

    if ((Random() % 100) < safariFleeRate)
        AI_Flee();
    else
        AI_Watch();

    return score;
}

// First battle logic
static s16 AI_FirstBattle(u8 battlerAtk, u8 battlerDef, u16 move, s16 score)
{
    if (GetHealthPercentage(battlerDef) <= 20)
        AI_Flee();

    return score;
}