diff --git a/include/battle_ai_util.h b/include/battle_ai_util.h
index fd55a99f7..5f077fe0c 100644
--- a/include/battle_ai_util.h
+++ b/include/battle_ai_util.h
@@ -9,6 +9,7 @@
 
 bool32 AI_RandLessThan(u8 val);
 void RecordLastUsedMoveByTarget(void);
+bool32 IsAiVsAiBattle(void);
 bool32 BattlerHasAi(u32 battlerId);
 bool32 IsAiBattlerAware(u32 battlerId);
 void ClearBattlerMoveHistory(u8 battlerId);
diff --git a/src/battle_ai_switch_items.c b/src/battle_ai_switch_items.c
index d815d3f8b..67f3e2dd8 100644
--- a/src/battle_ai_switch_items.c
+++ b/src/battle_ai_switch_items.c
@@ -1001,6 +1001,9 @@ static bool8 ShouldUseItem(void)
     u8 validMons = 0;
     bool8 shouldUse = FALSE;
 
+    if (IsAiVsAiBattle())
+        return FALSE;
+
     // If teaming up with player and Pokemon is on the right, or Pokemon is currently held by Sky Drop
     if ((gBattleTypeFlags & BATTLE_TYPE_INGAME_PARTNER && GetBattlerPosition(gActiveBattler) == B_POSITION_PLAYER_RIGHT)
        || gStatuses3[gActiveBattler] & STATUS3_SKY_DROPPED)
diff --git a/src/battle_ai_util.c b/src/battle_ai_util.c
index b27501c19..6d7b74b3b 100644
--- a/src/battle_ai_util.c
+++ b/src/battle_ai_util.c
@@ -441,19 +441,24 @@ void RecordLastUsedMoveByTarget(void)
     RecordKnownMove(gBattlerTarget, gLastMoves[gBattlerTarget]);
 }
 
+bool32 IsAiVsAiBattle(void)
+{
+    return (B_FLAG_AI_VS_AI_BATTLE && FlagGet(B_FLAG_AI_VS_AI_BATTLE));
+}
+
 bool32 BattlerHasAi(u32 battlerId)
 {
     switch (GetBattlerPosition(battlerId))
     {
     case B_POSITION_PLAYER_LEFT:
-        if (FlagGet(B_FLAG_AI_VS_AI_BATTLE))
+        if (IsAiVsAiBattle())
             return TRUE;
     default:
         return FALSE;
     case B_POSITION_OPPONENT_LEFT:
         return TRUE;
     case B_POSITION_PLAYER_RIGHT:
-        if ((gBattleTypeFlags & BATTLE_TYPE_INGAME_PARTNER) || FlagGet(B_FLAG_AI_VS_AI_BATTLE))
+        if ((gBattleTypeFlags & BATTLE_TYPE_INGAME_PARTNER) || IsAiVsAiBattle())
             return TRUE;
         else
             return FALSE;
diff --git a/src/battle_controller_player_partner.c b/src/battle_controller_player_partner.c
index 996ac15a5..67e475e51 100644
--- a/src/battle_controller_player_partner.c
+++ b/src/battle_controller_player_partner.c
@@ -11,7 +11,6 @@
 #include "battle_z_move.h"
 #include "bg.h"
 #include "data.h"
-#include "event_data.h"
 #include "item_use.h"
 #include "link.h"
 #include "main.h"
@@ -1317,7 +1316,7 @@ static void PlayerPartnerHandleDrawTrainerPic(void)
         xPos = 90;
         yPos = (8 - gTrainerBackPicCoords[trainerPicId].size) * 4 + 80;
     }
-    else if (FlagGet(B_FLAG_AI_VS_AI_BATTLE))
+    else if (IsAiVsAiBattle())
     {
         trainerPicId = gTrainers[gPartnerTrainerId].trainerPic;
         xPos = 60;
@@ -1830,7 +1829,7 @@ static void PlayerPartnerHandleIntroTrainerBallThrow(void)
         u8 spriteId = gPartnerSpriteId;
         LoadCompressedPalette(gTrainerBackPicPaletteTable[spriteId].data, 0x100 + paletteNum * 16, 32);
     }
-    else if (FlagGet(B_FLAG_AI_VS_AI_BATTLE))
+    else if (IsAiVsAiBattle())
     {
         u8 spriteId = gTrainers[gPartnerTrainerId].trainerPic;
         LoadCompressedPalette(gTrainerFrontPicPaletteTable[spriteId].data, OBJ_PLTT_ID(paletteNum), PLTT_SIZE_4BPP);
diff --git a/src/battle_controllers.c b/src/battle_controllers.c
index 8888249f2..397dda6d8 100644
--- a/src/battle_controllers.c
+++ b/src/battle_controllers.c
@@ -1,12 +1,12 @@
 #include "global.h"
 #include "battle.h"
 #include "battle_ai_main.h"
+#include "battle_ai_util.h"
 #include "battle_anim.h"
 #include "battle_controllers.h"
 #include "battle_message.h"
 #include "battle_setup.h"
 #include "cable_club.h"
-#include "event_data.h"
 #include "link.h"
 #include "link_rfu.h"
 #include "party_menu.h"
@@ -171,7 +171,7 @@ static void InitSinglePlayerBtlControllers(void)
             gBattlerControllerFuncs[0] = SetControllerToSafari;
         else if (gBattleTypeFlags & BATTLE_TYPE_WALLY_TUTORIAL)
             gBattlerControllerFuncs[0] = SetControllerToWally;
-        else if (FlagGet(B_FLAG_AI_VS_AI_BATTLE))
+        else if (IsAiVsAiBattle())
             gBattlerControllerFuncs[0] = SetControllerToPlayerPartner;
         else
             gBattlerControllerFuncs[0] = SetControllerToPlayer;
@@ -224,7 +224,7 @@ static void InitSinglePlayerBtlControllers(void)
     {
         gBattleMainFunc = BeginBattleIntro;
 
-        if (FlagGet(B_FLAG_AI_VS_AI_BATTLE))
+        if (IsAiVsAiBattle())
             gBattlerControllerFuncs[0] = SetControllerToPlayerPartner;
         else
             gBattlerControllerFuncs[0] = SetControllerToPlayer;
@@ -233,7 +233,7 @@ static void InitSinglePlayerBtlControllers(void)
         gBattlerControllerFuncs[1] = SetControllerToOpponent;
         gBattlerPositions[1] = B_POSITION_OPPONENT_LEFT;
 
-        if (FlagGet(B_FLAG_AI_VS_AI_BATTLE))
+        if (IsAiVsAiBattle())
             gBattlerControllerFuncs[2] = SetControllerToPlayerPartner;
         else
             gBattlerControllerFuncs[2] = SetControllerToPlayer;