diff --git a/src/battle_ai_switch_items.c b/src/battle_ai_switch_items.c
index 3180550e59..1c436e81cf 100644
--- a/src/battle_ai_switch_items.c
+++ b/src/battle_ai_switch_items.c
@@ -1807,13 +1807,13 @@ static u32 GetSwitchinHitsToKO(s32 damageTaken, u32 battler)
     u32 recurringDamage = GetSwitchinRecurringDamage();
     u32 recurringHealing = GetSwitchinRecurringHealing();
     u32 statusDamage = GetSwitchinStatusDamage(battler);
-    u32 hitsToKO = 0, singleUseItemHeal = 0;
+    u32 hitsToKO = 0;
     u16 maxHP = gAiLogicData->switchinCandidate.battleMon.maxHP, item = gAiLogicData->switchinCandidate.battleMon.item, heldItemEffect = GetItemHoldEffect(item);
     u8 weatherDuration = gWishFutureKnock.weatherDuration, holdEffectParam = GetItemHoldEffectParam(item);
     u32 opposingBattler = GetOppositeBattler(battler);
     u32 opposingAbility = gAiLogicData->abilities[opposingBattler], ability = gAiLogicData->switchinCandidate.battleMon.ability;
     bool32 usedSingleUseHealingItem = FALSE, opponentCanBreakMold = IsMoldBreakerTypeAbility(opposingBattler, opposingAbility);
-    s32 currentHP = startingHP;
+    s32 currentHP = startingHP, singleUseItemHeal = 0;
 
     // No damage being dealt
     if ((damageTaken + statusDamage + recurringDamage <= recurringHealing) || damageTaken + statusDamage + recurringDamage == 0)
@@ -1838,11 +1838,11 @@ static u32 GetSwitchinHitsToKO(s32 damageTaken, u32 battler)
             currentHP = 1;
 
         // If mon is still alive, apply weather impact first, as it might KO the mon before it can heal with its item (order is weather -> item -> status)
-        if (currentHP != 0)
+        if (currentHP > 0)
             currentHP = currentHP - weatherImpact;
 
         // Check if we're at a single use healing item threshold
-        if (gAiLogicData->switchinCandidate.battleMon.ability != ABILITY_KLUTZ && usedSingleUseHealingItem == FALSE
+        if (currentHP > 0 && gAiLogicData->switchinCandidate.battleMon.ability != ABILITY_KLUTZ && usedSingleUseHealingItem == FALSE
          && !(opposingAbility == ABILITY_UNNERVE && GetItemPocket(item) == POCKET_BERRIES))
         {
             switch (heldItemEffect)
@@ -1885,7 +1885,7 @@ static u32 GetSwitchinHitsToKO(s32 damageTaken, u32 battler)
         }
 
         // Healing from items occurs before status so we can do the rest in one line
-        if (currentHP >= 0)
+        if (currentHP > 0)
             currentHP = currentHP + recurringHealing - recurringDamage - statusDamage;
 
         // Recalculate toxic damage if needed
@@ -1900,7 +1900,7 @@ static u32 GetSwitchinHitsToKO(s32 damageTaken, u32 battler)
     }
 
     // Disguise will always add an extra hit to KO
-    if (opponentCanBreakMold && gAiLogicData->switchinCandidate.battleMon.species == SPECIES_MIMIKYU_DISGUISED)
+    if (!opponentCanBreakMold && gAiLogicData->switchinCandidate.battleMon.species == SPECIES_MIMIKYU_DISGUISED)
         hitsToKO++;
 
     // If mon had a hypothetical status from TSpikes, clear it