diff --git a/Mage.Sets/src/mage/cards/k/KarnLiberated.java b/Mage.Sets/src/mage/cards/k/KarnLiberated.java
index 5e08e65dfb..6d7c6867f3 100644
--- a/Mage.Sets/src/mage/cards/k/KarnLiberated.java
+++ b/Mage.Sets/src/mage/cards/k/KarnLiberated.java
@@ -57,7 +57,6 @@ import mage.game.permanent.PermanentImpl;
 import mage.players.Player;
 import mage.target.TargetPermanent;
 import mage.target.TargetPlayer;
-import mage.util.CardUtil;
 
 /**
  *
@@ -68,7 +67,7 @@ public class KarnLiberated extends CardImpl {
     private UUID exileId = UUID.randomUUID();
 
     public KarnLiberated(UUID ownerId, CardSetInfo setInfo) {
-        super(ownerId,setInfo,new CardType[]{CardType.PLANESWALKER},"{7}");
+        super(ownerId, setInfo, new CardType[]{CardType.PLANESWALKER}, "{7}");
         this.subtype.add("Karn");
         this.addAbility(new PlanswalkerEntersWithLoyalityCountersAbility(6));
 
@@ -221,13 +220,19 @@ class KarnLiberatedDelayedEffect extends OneShotEffect {
                 // since the beginning of the first turn. They can attack and their activated abilities with {T} in the cost can be activated.
                 Cards cards = new CardsImpl(); // needed because putOntoTheBattlefield removes from exile
                 cards.addAll(exile);
-                controller.moveCards(cards, Zone.BATTLEFIELD, source, game);
-                for (Card card : cards.getCards(game)) {
-                    Permanent permanent = game.getPermanent(card.getId());
-                    ((PermanentImpl) permanent).removeSummoningSickness();
+                if (!cards.isEmpty()) {
+                    controller.moveCards(cards, Zone.BATTLEFIELD, source, game);
+                    for (Card card : cards.getCards(game)) {
+                        if (card != null) {
+                            Permanent permanent = game.getPermanent(card.getId());
+                            if (permanent != null) {
+                                ((PermanentImpl) permanent).removeSummoningSickness();
+                            }
+                        }
+                    }
                 }
-                return true;
             }
+            return true;
         }
         return false;
     }