diff --git a/src/data/ability.ts b/src/data/ability.ts
index 45577a7e38f..723f5ee2f49 100644
--- a/src/data/ability.ts
+++ b/src/data/ability.ts
@@ -1530,7 +1530,7 @@ export class BlockOneHitKOAbAttr extends AbAttr {
 
 export class IncrementMovePriorityAbAttr extends AbAttr {
   private moveIncrementFunc: (pokemon: Pokemon, move: Move) => boolean;
-  private increaseAmount: integer;
+  private increaseAmount: number;
 
   constructor(moveIncrementFunc: (pokemon: Pokemon, move: Move) => boolean, increaseAmount = 1) {
     super(true);
@@ -3075,7 +3075,7 @@ export function initAbilities() {
       .attr(NoTransformAbilityAbAttr)
       .attr(NoFusionAbilityAbAttr),
     new Ability(Abilities.QUICK_DRAW, "Quick Draw", "Enables the Pokémon to move first occasionally.", 8)
-      .attr(IncrementMovePriorityAbAttr, (pokemon, move) => Math.random() <= 1/3),
+      .attr(IncrementMovePriorityAbAttr, (pokemon, move) => Math.random() <= 1/3, 0.5),
     new Ability(Abilities.UNSEEN_FIST, "Unseen Fist (N)", "If the Pokémon uses moves that make direct contact, it can attack the target even if the target protects itself.", 8),
     new Ability(Abilities.CURIOUS_MEDICINE, "Curious Medicine (N)", "When the Pokémon enters a battle, it scatters medicine from its shell, which removes all stat changes from allies.", 8),
     new Ability(Abilities.TRANSISTOR, "Transistor", "Powers up Electric-type moves.", 8)