diff --git a/src/data/move.ts b/src/data/move.ts
index abed38a660d..69708fe4caa 100644
--- a/src/data/move.ts
+++ b/src/data/move.ts
@@ -278,12 +278,14 @@ export default class Move implements Localizable {
   }
 
   /**
-   * Checks if the move is immune to certain types
-   * currently only look at case of Grass types and powder moves
-   * @param type {@linkcode Type} enum
+   * Checks if the move is immune to certain types.
+   * Currently looks at cases of Grass types with powder moves and Dark types with moves affected by Prankster.
+   * @param {Pokemon} user the source of this move
+   * @param {Pokemon} target the target of this move
+   * @param {Type} type the type of the move's target
    * @returns boolean
    */
-  isTypeImmune(type: Type): boolean {
+  isTypeImmune(user: Pokemon, target: Pokemon, type: Type): boolean {
     if (this.moveTarget === MoveTarget.USER) {
       return false;
     }
@@ -294,6 +296,11 @@ export default class Move implements Localizable {
         return true;
       }
       break;
+    case Type.DARK:
+      if (user.hasAbility(Abilities.PRANKSTER) && this.category === MoveCategory.STATUS && (user.isPlayer() !== target.isPlayer())) {
+        return true;
+      }
+      break;
     }
     return false;
   }
@@ -4599,7 +4606,7 @@ export class RemoveTypeAttr extends MoveEffectAttr {
 
 export class CopyTypeAttr extends MoveEffectAttr {
   constructor() {
-    super(true);
+    super(false);
   }
 
   apply(user: Pokemon, target: Pokemon, move: Move, args: any[]): boolean {
diff --git a/src/field/pokemon.ts b/src/field/pokemon.ts
index fcc55a645a0..4146adee377 100644
--- a/src/field/pokemon.ts
+++ b/src/field/pokemon.ts
@@ -1730,11 +1730,10 @@ export default abstract class Pokemon extends Phaser.GameObjects.Container {
     if (typeless) {
       typeMultiplier.value = 1;
     }
-    if (types.find(t => move.isTypeImmune(t))) {
+    if (types.find(t => move.isTypeImmune(source, this, t))) {
       typeMultiplier.value = 0;
     }
 
-
     // Apply arena tags for conditional protection
     if (!move.checkFlag(MoveFlags.IGNORE_PROTECT, source, this) && !move.isAllyTarget()) {
       const defendingSide = this.isPlayer() ? ArenaTagSide.PLAYER : ArenaTagSide.ENEMY;