diff --git a/calc/src/mechanics/gen4.ts b/calc/src/mechanics/gen4.ts
index fc7c54990..f8b6d3318 100644
--- a/calc/src/mechanics/gen4.ts
+++ b/calc/src/mechanics/gen4.ts
@@ -66,9 +66,21 @@ export function calculateDPP(
     return result;
   }
 
-  const tempAbility = defender.ability;
+  const defenderAbilityIgnored = defender.hasAbility(
+    'Battle Armor', 'Clear Body', 'Damp', 'Dry Skin',
+    'Filter', 'Flash Fire', 'Flower Gift', 'Heatproof',
+    'Hyper Cutter', 'Immunity', 'Inner Focus', 'Insomnia',
+    'Keen Eye', 'Leaf Guard', 'Levitate', 'Lightning Rod',
+    'Limber', 'Magma Armor', 'Marvel Scale', 'Motor Drive',
+    'Oblivious', 'Own Tempo', 'Sand Veil', 'Shell Armor',
+    'Shield Dust', 'Simple', 'Snow Cloak', 'Solid Rock',
+    'Soundproof', 'Sticky Hold', 'Storm Drain', 'Sturdy',
+    'Suction Cups', 'Tangled Feet', 'Thick Fat', 'Unaware',
+    'Vital Spirit', 'Volt Absorb', 'Water Absorb', 'Water Veil',
+    'White Smoke', 'Wonder Guard'
+  );
 
-  if (attacker.hasAbility('Mold Breaker')) {
+  if (attacker.hasAbility('Mold Breaker') && defenderAbilityIgnored) {
     defender.ability = '' as AbilityName;
     desc.attackerAbility = attacker.ability;
   }
@@ -202,13 +214,6 @@ export function calculateDPP(
 
   // #endregion
 
-  // Restores the defender's ability after disabling it for Mold Breaker purposes.
-  // This will make abilities like Rain Dish and Dry Skin work
-  // even when the attacker has Mold Breaker.
-  if (attacker.hasAbility('Mold Breaker')) {
-    defender.ability = tempAbility;
-  }
-
   // #region (Special) Defense
   const defense = calculateDefenseDPP(gen, attacker, defender, move, field, desc, isCritical);
 
diff --git a/calc/src/mechanics/gen56.ts b/calc/src/mechanics/gen56.ts
index ef1053787..a36fc8cf1 100644
--- a/calc/src/mechanics/gen56.ts
+++ b/calc/src/mechanics/gen56.ts
@@ -95,9 +95,26 @@ export function calculateBWXY(
     return result;
   }
 
-  const tempAbility = defender.ability;
+  const defenderAbilityIgnored = defender.hasAbility(
+    'Aroma Veil', 'Aura Break', 'Battle Armor', 'Big Pecks',
+    'Bulletproof', 'Clear Body', 'Contrary', 'Damp',
+    'Dark Aura', 'Dry Skin', 'Fairy Aura', 'Filter',
+    'Flash Fire', 'Flower Gift', 'Flower Veil', 'Friend Guard',
+    'Fur Coat', 'Grass Pelt', 'Heatproof', 'Heavy Metal',
+    'Hyper Cutter', 'Immunity', 'Inner Focus', 'Insomnia',
+    'Keen Eye', 'Leaf Guard', 'Levitate', 'Light Metal',
+    'Lightning Rod', 'Limber', 'Magic Bounce', 'Magma Armor',
+    'Marvel Scale', 'Motor Drive', 'Multiscale', 'Oblivious',
+    'Overcoat', 'Own Tempo', 'Sand Veil', 'Sap Sipper',
+    'Shell Armor', 'Shield Dust', 'Simple', 'Snow Cloak',
+    'Solid Rock', 'Soundproof', 'Sticky Hold', 'Storm Drain',
+    'Sturdy', 'Suction Cups', 'Sweet Veil', 'Tangled Feet',
+    'Telepathy', 'Thick Fat', 'Unaware', 'Vital Spirit',
+    'Volt Absorb', 'Water Absorb', 'Water Veil', 'White Smoke',
+    'Wonder Guard', 'Wonder Skin'
+  );
 
-  if (attacker.hasAbility('Mold Breaker', 'Teravolt', 'Turboblaze')) {
+  if (attacker.hasAbility('Mold Breaker', 'Teravolt', 'Turboblaze') && defenderAbilityIgnored) {
     defender.ability = '' as AbilityName;
     desc.attackerAbility = attacker.ability;
   }
@@ -291,13 +308,6 @@ export function calculateBWXY(
 
   // #endregion
 
-  // Restores the defender's ability after disabling it for Mold Breaker purposes.
-  // This will make abilities like Rain Dish and Dry Skin work
-  // even when the attacker has Mold Breaker.
-  if (attacker.hasAbility('Mold Breaker', 'Teravolt', 'Turboblaze')) {
-    defender.ability = tempAbility;
-  }
-
   // #region (Special) Defense
 
   const defense = calculateDefenseBWXY(gen, attacker, defender, move, field, desc, isCritical);
diff --git a/calc/src/mechanics/gen789.ts b/calc/src/mechanics/gen789.ts
index 55a4f9b26..bcb7309f1 100644
--- a/calc/src/mechanics/gen789.ts
+++ b/calc/src/mechanics/gen789.ts
@@ -149,12 +149,28 @@ export function calculateSMSSSV(
     return result;
   }
 
-  const defenderIgnoresAbility = defender.hasAbility(
-    'Full Metal Body',
-    'Prism Armor',
-    'Shadow Shield',
-    'Tablets of Ruin',
-    'Vessel of Ruin'
+  const defenderAbilityIgnored = defender.hasAbility(
+    'Armor Tail', 'Aroma Veil', 'Aura Break', 'Battle Armor',
+    'Big Pecks', 'Bulletproof', 'Clear Body', 'Contrary',
+    'Damp', 'Dazzling', 'Disguise', 'Dry Skin',
+    'Earth Eater', 'Filter', 'Flash Fire', 'Flower Gift',
+    'Flower Veil', 'Fluffy', 'Friend Guard', 'Fur Coat',
+    'Good as Gold', 'Grass Pelt', 'Guard Dog', 'Heatproof',
+    'Heavy Metal', 'Hyper Cutter', 'Ice Face', 'Ice Scales',
+    'Illuminate', 'Immunity', 'Inner Focus', 'Insomnia',
+    'Keen Eye', 'Leaf Guard', 'Levitate', 'Light Metal',
+    'Lightning Rod', 'Limber', 'Magic Bounce', 'Magma Armor',
+    'Marvel Scale', "Mind's Eye", 'Mirror Armor', 'Motor Drive',
+    'Multiscale', 'Oblivious', 'Overcoat', 'Own Tempo',
+    'Pastel Veil', 'Punk Rock', 'Purifying Salt', 'Queenly Majesty',
+    'Sand Veil', 'Sap Sipper', 'Shell Armor', 'Shield Dust',
+    'Simple', 'Snow Cloak', 'Solid Rock', 'Soundproof',
+    'Sticky Hold', 'Storm Drain', 'Sturdy', 'Suction Cups',
+    'Sweet Veil', 'Tangled Feet', 'Telepathy', 'Tera Shell',
+    'Thermal Exchange', 'Thick Fat', 'Unaware', 'Vital Spirit',
+    'Volt Absorb', 'Water Absorb', 'Water Bubble', 'Water Veil',
+    'Well-Baked Body', 'White Smoke', 'Wind Rider', 'Wonder Guard',
+    'Wonder Skin'
   );
 
   const attackerIgnoresAbility = attacker.hasAbility('Mold Breaker', 'Teravolt', 'Turboblaze');
@@ -170,9 +186,7 @@ export function calculateSMSSSV(
     'Sunsteel Strike'
   );
 
-  const tempAbility = defender.ability;
-
-  if (!defenderIgnoresAbility && (attackerIgnoresAbility || moveIgnoresAbility)) {
+  if (defenderAbilityIgnored && (attackerIgnoresAbility || moveIgnoresAbility)) {
     if (attackerIgnoresAbility) desc.attackerAbility = attacker.ability;
     if (defender.hasItem('Ability Shield')) {
       desc.defenderItem = defender.item;
@@ -574,14 +588,6 @@ export function calculateSMSSSV(
           : 'atk';
   // #endregion
 
-  // Restores the defender's ability after disabling it for the purposes of
-  // Mold Breaker and other moves that ignore abilities.
-  // This will make abilities like Rain Dish and Quark Drive work
-  // even when the attacker has Mold Breaker.
-  if (attackerIgnoresAbility || moveIgnoresAbility) {
-    defender.ability = tempAbility;
-  }
-
   // #region (Special) Defense
 
   const defense = calculateDefenseSMSSSV(gen, attacker, defender, move, field, desc, isCritical);
diff --git a/calc/src/test/calc.test.ts b/calc/src/test/calc.test.ts
index 3890c13ae..9fe61c395 100644
--- a/calc/src/test/calc.test.ts
+++ b/calc/src/test/calc.test.ts
@@ -744,7 +744,7 @@ describe('calc', () => {
         expect(result.defender.ability).toBe('Rain Dish');
 
         expect(result.desc()).toBe(
-          '0 Atk Mold Breaker Rampardos Stone Edge vs. 0 HP / 0 Def Blastoise: 168-198 (56.1 - 66.2%) -- guaranteed 2HKO after Rain Dish recovery'
+          '0 Atk Rampardos Stone Edge vs. 0 HP / 0 Def Blastoise: 168-198 (56.1 - 66.2%) -- guaranteed 2HKO after Rain Dish recovery'
         );
       });
     });
@@ -1251,7 +1251,7 @@ describe('calc', () => {
         const knockoff = Move('Knock Off');
         const result = calculate(sawk, silvally, knockoff);
         expect(result.desc()).toBe(
-          '252 Atk Mold Breaker Sawk Knock Off vs. 0 HP / 0 Def Silvally-Dark: 36-43 (10.8 - 12.9%) -- possible 8HKO'
+          '252 Atk Sawk Knock Off vs. 0 HP / 0 Def Silvally-Dark: 36-43 (10.8 - 12.9%) -- possible 8HKO'
         );
       });