diff --git a/Mage.Sets/src/mage/cards/a/AngelOfCondemnation.java b/Mage.Sets/src/mage/cards/a/AngelOfCondemnation.java
index 6280ccde3c..a67565ec12 100644
--- a/Mage.Sets/src/mage/cards/a/AngelOfCondemnation.java
+++ b/Mage.Sets/src/mage/cards/a/AngelOfCondemnation.java
@@ -91,7 +91,7 @@ public class AngelOfCondemnation extends CardImpl {
         effect.setText("Exile another target creature until {this} leaves the battlefield");
         ability = new SimpleActivatedAbility(Zone.BATTLEFIELD, effect, new ManaCostsImpl<>("{2}{W}"));
         ability.addCost(new TapSourceCost());
-        ability.addCost(new ExertSourceCost(ability));
+        ability.addCost(new ExertSourceCost());
         ability.addTarget(new TargetCreaturePermanent(filter));
         ability.addEffect(new CreateDelayedTriggeredAbilityEffect(new OnLeaveReturnExiledToBattlefieldAbility()));
         this.addAbility(ability);
diff --git a/Mage/src/main/java/mage/abilities/costs/common/ExertSourceCost.java b/Mage/src/main/java/mage/abilities/costs/common/ExertSourceCost.java
index 8503edb603..45c4961ad8 100644
--- a/Mage/src/main/java/mage/abilities/costs/common/ExertSourceCost.java
+++ b/Mage/src/main/java/mage/abilities/costs/common/ExertSourceCost.java
@@ -46,16 +46,12 @@ import mage.target.targetpointer.FixedTarget;
  */
 public class ExertSourceCost extends CostImpl {
 
-    private final Ability source;
-
-    public ExertSourceCost(Ability source) {
-        this.source = source;
+    public ExertSourceCost() {
         this.text = "Exert {this}";
     }
 
     public ExertSourceCost(ExertSourceCost cost) {
         super(cost);
-        this.source = cost.source;
     }
 
     @Override
@@ -71,7 +67,7 @@ public class ExertSourceCost extends CostImpl {
             game.fireEvent(GameEvent.getEvent(EventType.BECOMES_EXERTED, permanent.getId(), permanent.getId(), permanent.getControllerId()));
             ContinuousEffect effect = new DontUntapInControllersNextUntapStepTargetEffect("", permanent.getControllerId());
             effect.setTargetPointer(new FixedTarget(permanent, game));
-            game.addEffect(effect, source);
+            game.addEffect(effect, ability);
             paid = true;
         }
         return paid;