Add new methods to Target and TargetPointer to help generate card rules text. Currently only used by ExileUntilSourceLeavesEffect

Mage/src/main/java/mage/target/targetpointer/FirstTargetPointer.java

@@ -6,6 +6,7 @@ import mage.cards.Card;
 import mage.constants.Zone;
 import mage.game.Game;
 import mage.game.permanent.Permanent;
+import mage.target.Targets;
 
 import java.util.*;
 
@@ -117,4 +118,9 @@ public class FirstTargetPointer extends TargetPointerImpl {
         }
         return permanent;
     }
+
+    @Override
+    public String describeTargets(Targets targets, String defaultDescription) {
+        return targets.isEmpty() ? defaultDescription : targets.get(0).getDescription();
+    }
 }

Mage/src/main/java/mage/target/targetpointer/SecondTargetPointer.java

@@ -6,6 +6,7 @@ import mage.cards.Card;
 import mage.constants.Zone;
 import mage.game.Game;
 import mage.game.permanent.Permanent;
+import mage.target.Targets;
 
 import java.util.*;
 
@@ -114,4 +115,9 @@ public class SecondTargetPointer extends TargetPointerImpl {
         }
         return null;
     }
+
+    @Override
+    public String describeTargets(Targets targets, String defaultDescription) {
+        return targets.size() < 2 ? defaultDescription : targets.get(1).getDescription();
+    }
 }

Mage/src/main/java/mage/target/targetpointer/TargetPointer.java

@@ -3,6 +3,7 @@ package mage.target.targetpointer;
 import mage.abilities.Ability;
 import mage.game.Game;
 import mage.game.permanent.Permanent;
+import mage.target.Targets;
 import mage.util.Copyable;
 
 import java.io.Serializable;
@@ -37,6 +38,16 @@ public interface TargetPointer extends Serializable, Copyable<TargetPointer> {
      */
     Permanent getFirstTargetPermanentOrLKI(Game game, Ability source);
 
+    /**
+     * Returns description of targets for ability text
+     *
+     * @param targets
+     * @param defaultText
+     */
+    default String describeTargets(Targets targets, String defaultDescription) {
+        return defaultDescription;
+    }
+
     /**
      * Store text to target pointer (usefull to keep data for specific trigger, e.g. selected target name for rules)
      *

Mage/src/main/java/mage/target/targetpointer/ThirdTargetPointer.java

@@ -6,6 +6,7 @@ import mage.cards.Card;
 import mage.constants.Zone;
 import mage.game.Game;
 import mage.game.permanent.Permanent;
+import mage.target.Targets;
 
 import java.util.*;
 
@@ -118,4 +119,9 @@ public class ThirdTargetPointer extends TargetPointerImpl {
         }
         return null;
     }
+
+    @Override
+    public String describeTargets(Targets targets, String defaultDescription) {
+        return targets.size() < 3 ? defaultDescription : targets.get(2).getDescription();
+    }
 }