* Delay triggered abilities - fixed that copied spell with multiple delayed triggered abilities can freeze the game or missing from stack (#5437);

Mage.Common/src/main/java/mage/view/CardsView.java

@@ -13,14 +13,18 @@ import mage.game.permanent.Permanent;
 import mage.game.permanent.PermanentToken;
 import mage.target.targetpointer.TargetPointer;
 import mage.util.GameLog;
+import org.apache.log4j.Logger;
 
 import java.util.*;
+import java.util.stream.Collectors;
 
 /**
  * @author BetaSteward_at_googlemail.com
  */
 public class CardsView extends LinkedHashMap<UUID, CardView> {
 
+    private static final Logger LOGGER = Logger.getLogger(CardsView.class);
+
     public CardsView() {
     }
 
@@ -151,6 +155,11 @@ public class CardsView extends LinkedHashMap<UUID, CardView> {
                 this.put(ability.getId(), abilityView);
             }
         }
+
+        if (this.size() != abilities.size()) {
+            LOGGER.error("Can't translate abilities list to cards view (need " + abilities.size() + ", but get " + this.size() + "). Abilities:\n"
+                    + abilities.stream().map(a -> a.getClass().getSimpleName() + " - " + a.getRule()).collect(Collectors.joining("\n")));
+        }
     }
 
     public CardsView(Collection<? extends Ability> abilities, GameState state) {