diff --git a/asm/macros/battle_script.inc b/asm/macros/battle_script.inc
index cc89e0aae..debac5acb 100644
--- a/asm/macros/battle_script.inc
+++ b/asm/macros/battle_script.inc
@@ -1440,6 +1440,10 @@
 	.4byte \ptr
 	.endm
 	
+	.macro invertstatstages battler
+	various \battler, VARIOUS_INVERT_STAT_STAGES
+	.endm
+	
 @ helpful macros
 	.macro setstatchanger stat, stages, down
 	setbyte sSTATCHANGER \stat | \stages << 4 | \down << 7
diff --git a/data/battle_scripts_1.s b/data/battle_scripts_1.s
index 4f877d11a..e8a6f2ad3 100644
--- a/data/battle_scripts_1.s
+++ b/data/battle_scripts_1.s
@@ -279,6 +279,41 @@ gBattleScriptsForMoveEffects:: @ 82D86A8
 	.4byte BattleScript_EffectEntrainment
 	.4byte BattleScript_EffectHealPulse
 	.4byte BattleScript_EffectQuash
+	.4byte BattleScript_EffectIonDeluge
+	.4byte BattleScript_EffectFreezeDry
+	.4byte BattleScript_EffectTopsyTurvy
+	
+BattleScript_EffectTopsyTurvy:
+	attackcanceler
+	attackstring
+	ppreduce
+	accuracycheck BattleScript_ButItFailed, NO_ACC_CALC_CHECK_LOCK_ON
+	jumpifstat BS_TARGET, CMP_NOT_EQUAL, STAT_ATK, 6, BattleScript_EffectTopsyTurvyWorks
+	jumpifstat BS_TARGET, CMP_NOT_EQUAL, STAT_DEF, 6, BattleScript_EffectTopsyTurvyWorks
+	jumpifstat BS_TARGET, CMP_NOT_EQUAL, STAT_SPATK, 6, BattleScript_EffectTopsyTurvyWorks
+	jumpifstat BS_TARGET, CMP_NOT_EQUAL, STAT_SPDEF, 6, BattleScript_EffectTopsyTurvyWorks
+	jumpifstat BS_TARGET, CMP_NOT_EQUAL, STAT_SPEED, 6, BattleScript_EffectTopsyTurvyWorks
+	jumpifstat BS_TARGET, CMP_NOT_EQUAL, STAT_ACC, 6, BattleScript_EffectTopsyTurvyWorks
+	jumpifstat BS_TARGET, CMP_EQUAL, STAT_EVASION, 6, BattleScript_ButItFailed
+BattleScript_EffectTopsyTurvyWorks:
+	attackanimation
+	waitanimation
+	invertstatstages BS_TARGET
+	printstring STRINGID_TOPSYTURVYSWITCHEDSTATS
+	waitmessage 0x40
+	goto BattleScript_MoveEnd
+	
+BattleScript_EffectIonDeluge:
+	attackcanceler
+	accuracycheck BattleScript_PrintMoveMissed, ACC_CURR_MOVE
+	attackstring
+	ppreduce
+	orword gFieldStatuses, STATUS_FIELD_ION_DELUGE
+	attackanimation
+	waitanimation
+	printstring STRINGID_IONDELUGEON
+	waitmessage 0x40
+	goto BattleScript_MoveEnd
 	
 BattleScript_EffectQuash:
 	attackcanceler
@@ -740,6 +775,7 @@ BattleScript_EffectFoulPlay:
 BattleScript_EffectPsyshock:
 BattleScript_EffectWeatherBall:
 BattleScript_EffectHiddenPower:
+BattleScript_EffectFreezeDry:
 	jumpifnotmove MOVE_SURF, BattleScript_HitFromAtkCanceler
 	jumpifnostatus3 BS_TARGET, STATUS3_UNDERWATER, BattleScript_HitFromAtkCanceler
 	orword gHitMarker, HITMARKER_IGNORE_UNDERWATER
diff --git a/include/constants/battle_move_effects.h b/include/constants/battle_move_effects.h
index c81d259f8..ab0535993 100644
--- a/include/constants/battle_move_effects.h
+++ b/include/constants/battle_move_effects.h
@@ -268,5 +268,8 @@
 #define EFFECT_ENTRAINMENT 262
 #define EFFECT_HEAL_PULSE 263
 #define EFFECT_QUASH 264
+#define EFFECT_ION_DELUGE 265
+#define EFFECT_FREEZE_DRY 266
+#define EFFECT_TOPSY_TURVY 267
 
 #endif  // GUARD_CONSTANTS_BATTLE_MOVE_EFFECTS_H
diff --git a/include/constants/battle_script_commands.h b/include/constants/battle_script_commands.h
index eef80d608..0156f967b 100644
--- a/include/constants/battle_script_commands.h
+++ b/include/constants/battle_script_commands.h
@@ -90,6 +90,7 @@
 #define VARIOUS_SET_LAST_USED_ABILITY           41
 #define VARIOUS_TRY_HEAL_PULSE                  42
 #define VARIOUS_TRY_QUASH                       43
+#define VARIOUS_INVERT_STAT_STAGES              44
 
 // atk80, dmg manipulation
 #define ATK80_DMG_CHANGE_SIGN                               0
diff --git a/include/constants/battle_string_ids.h b/include/constants/battle_string_ids.h
index abab41bb8..274514647 100644
--- a/include/constants/battle_string_ids.h
+++ b/include/constants/battle_string_ids.h
@@ -495,7 +495,9 @@
 #define	STRINGID_PKMNBLEWAWAYTOXICSPIKES 492
 #define	STRINGID_PKMNBLEWAWAYSTICKYWEB 493
 #define	STRINGID_PKMNBLEWAWAYSTEALTHROCK 494
+#define	STRINGID_IONDELUGEON 495
+#define	STRINGID_TOPSYTURVYSWITCHEDSTATS 496
 
-#define BATTLESTRINGS_COUNT     506
+#define BATTLESTRINGS_COUNT     516
 
 #endif // GUARD_CONSTANTS_BATTLE_STRING_IDS_H
diff --git a/include/data/battle_moves.h b/include/data/battle_moves.h
index 3db40d970..74ed8974d 100644
--- a/include/data/battle_moves.h
+++ b/include/data/battle_moves.h
@@ -6832,7 +6832,7 @@ const struct BattleMove gBattleMoves[MOVES_COUNT_GEN6] =
 		.split = SPLIT_STATUS,
 	},
 	{ // MOVE_ION_DELUGE
-		.effect = EFFECT_PLACEHOLDER, // Needs a custom move effect
+		.effect = EFFECT_ION_DELUGE,
 		.power = 0,
 		.type = TYPE_ELECTRIC,
 		.accuracy = 0,
@@ -6880,7 +6880,7 @@ const struct BattleMove gBattleMoves[MOVES_COUNT_GEN6] =
 		.split = SPLIT_PHYSICAL,
 	},
 	{ // MOVE_FREEZE_DRY
-		.effect = EFFECT_PLACEHOLDER, // Needs a custom move effect
+		.effect = EFFECT_FREEZE_DRY,
 		.power = 70,
 		.type = TYPE_ICE,
 		.accuracy = 100,
@@ -6916,7 +6916,7 @@ const struct BattleMove gBattleMoves[MOVES_COUNT_GEN6] =
 		.split = SPLIT_STATUS,
 	},
 	{ // MOVE_TOPSY_TURVY
-		.effect = EFFECT_PLACEHOLDER, // Needs a custom move effect
+		.effect = EFFECT_TOPSY_TURVY,
 		.power = 0,
 		.type = TYPE_DARK,
 		.accuracy = 0,
diff --git a/src/battle_message.c b/src/battle_message.c
index c8207b0a8..fbf8f516d 100644
--- a/src/battle_message.c
+++ b/src/battle_message.c
@@ -633,6 +633,8 @@ static const u8 sText_QuashSuccess[] = _("");
 static const u8 sText_PkmnBlewAwayToxicSpikes[] = _("{B_ATK_NAME_WITH_PREFIX} blew away\nTOXIC SPIKES!");
 static const u8 sText_PkmnBlewAwayStickyWeb[] = _("{B_ATK_NAME_WITH_PREFIX} blew away\nSTICKY WEB!");
 static const u8 sText_PkmnBlewAwayStealthRock[] = _("{B_ATK_NAME_WITH_PREFIX} blew away\nSTEALTH ROCK!");
+static const u8 sText_IonDelugeOn[] = _("");
+static const u8 sText_TopsyTurvySwitchedStats[] = _("");
 
 // New selection strings, they must end with "\p".
 // Use {B_LAST_ITEM} and {B_CURRENT_MOVE}.
@@ -1126,6 +1128,8 @@ const u8 *const gBattleStringsTable[BATTLESTRINGS_COUNT] =
     sText_PkmnBlewAwayToxicSpikes,
     sText_PkmnBlewAwayStickyWeb,
     sText_PkmnBlewAwayStealthRock,
+    sText_IonDelugeOn,
+    sText_TopsyTurvySwitchedStats,
 };
 
 const u16 gMagicCoatBounceStringIds[] =
diff --git a/src/battle_script_commands.c b/src/battle_script_commands.c
index bbb783d79..df89ddd92 100644
--- a/src/battle_script_commands.c
+++ b/src/battle_script_commands.c
@@ -6430,6 +6430,15 @@ static void atk76_various(void)
             gBattlescriptCurrInstr += 7;
         }
         return;
+    case VARIOUS_INVERT_STAT_STAGES:
+        for (i = 0; i < BATTLE_STATS_NO; i++)
+        {
+            if (gBattleMons[gActiveBattler].statStages[i] < 6) // Negative becomes positive.
+                gBattleMons[gActiveBattler].statStages[i] = 6 + (6 - gBattleMons[gActiveBattler].statStages[i]);
+            else if (gBattleMons[gActiveBattler].statStages[i] > 6) // Positive becomes negative.
+                gBattleMons[gActiveBattler].statStages[i] = 6 - (gBattleMons[gActiveBattler].statStages[i] - 6);
+        }
+        break;
     }
 
     gBattlescriptCurrInstr += 3;
diff --git a/src/battle_util.c b/src/battle_util.c
index 6c190bd79..2f3d1cded 100644
--- a/src/battle_util.c
+++ b/src/battle_util.c
@@ -848,6 +848,7 @@ enum
 	ENDTURN_MISTY_TERRAIN,
 	ENDTURN_GRASSY_TERRAIN,
 	ENDTURN_PSYCHIC_TERRAIN,
+	ENDTURN_ION_DELUGE,
 	ENDTURN_FIELD_COUNT,
 };
 
@@ -1257,6 +1258,10 @@ u8 DoFieldEndTurnEffects(void)
             }
             gBattleStruct->turnCountersTracker++;
             break;
+        case ENDTURN_ION_DELUGE:
+            gFieldStatuses &= ~(STATUS_FIELD_ION_DELUGE);
+            gBattleStruct->turnCountersTracker++;
+            break;
         case ENDTURN_FIELD_COUNT:
             effect++;
             break;
@@ -5410,7 +5415,7 @@ static inline void MulByTypeEffectiveness(u16 *modifier, u16 move, u8 moveType,
         mod = UQ_4_12(1.0);
     if (moveType == TYPE_PSYCHIC && defType == TYPE_DARK && gStatuses3[battlerDef] & STATUS3_MIRACLE_EYED)
         mod = UQ_4_12(1.0);
-    if (move == MOVE_FREEZE_DRY && defType == TYPE_WATER)
+    if (gBattleMoves[move].effect == EFFECT_FREEZE_DRY && defType == TYPE_WATER)
         mod = UQ_4_12(2.0);
     if (moveType == TYPE_GROUND && defType == TYPE_FLYING && IsBattlerGrounded(battlerDef))
         mod = UQ_4_12(1.0);