diff --git a/src/battle_ai_main.c b/src/battle_ai_main.c
index 0973ba8ef..34a8df0c1 100644
--- a/src/battle_ai_main.c
+++ b/src/battle_ai_main.c
@@ -4326,10 +4326,13 @@ static s16 AI_CheckViability(u8 battlerAtk, u8 battlerDef, u16 move, s16 score)
         break;
     case EFFECT_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
+        if (!(gBattleMons[battlerAtk].status2 & STATUS2_TRANSFORMED)) // Don't try to change form if it's transformed.
+        {
+            if (AI_DATA->atkSpecies == SPECIES_MELOETTA && gBattleMons[battlerDef].defense < gBattleMons[battlerDef].spDefense)
+                score += 3; // Change to pirouette if can do more damage unless it
+            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:
diff --git a/src/battle_script_commands.c b/src/battle_script_commands.c
index 0f2fdfe84..87998508d 100644
--- a/src/battle_script_commands.c
+++ b/src/battle_script_commands.c
@@ -3454,7 +3454,7 @@ void SetMoveEffect(bool32 primary, u32 certain)
                 }
                 break;
             case MOVE_EFFECT_RELIC_SONG:
-                if (GetBattlerAbility(gBattlerAttacker) != ABILITY_SHEER_FORCE)
+                if (GetBattlerAbility(gBattlerAttacker) != ABILITY_SHEER_FORCE && !(gBattleMons[gBattlerAttacker].status2 & STATUS2_TRANSFORMED))
                 {
                     if (gBattleMons[gBattlerAttacker].species == SPECIES_MELOETTA)
                     {
diff --git a/src/battle_util.c b/src/battle_util.c
index 7e2320500..8ee319bc0 100644
--- a/src/battle_util.c
+++ b/src/battle_util.c
@@ -3877,6 +3877,9 @@ static bool32 ShouldChangeFormHpBased(u32 battler)
     };
     u32 i;
 
+    if (gBattleMons[battler].status2 & STATUS2_TRANSFORMED)
+        return FALSE;
+
     for (i = 0; i < ARRAY_COUNT(forms); i++)
     {
         if (GetBattlerAbility(battler) == forms[i][0])