Fixed that surge craeted exceptions for rule tooltip text generation.

Mage/src/main/java/mage/abilities/condition/common/ProwlCondition.java

@@ -24,8 +24,7 @@
 * The views and conclusions contained in the software and documentation are those of the
 * authors and should not be interpreted as representing official policies, either expressed
 * or implied, of BetaSteward_at_googlemail.com.
-*/
-
+ */
 package mage.abilities.condition.common;
 
 import mage.abilities.Ability;
@@ -35,16 +34,16 @@ import mage.cards.Card;
 import mage.game.Game;
 
 /**
- *  Checks if a the spell was cast with the alternate prowl costs
+ * Checks if a the spell was cast with the alternate prowl costs
  *
  * @author LevelX2
  */
-
 public class ProwlCondition implements Condition {
 
     private static ProwlCondition fInstance = null;
 
-    private ProwlCondition() {}
+    private ProwlCondition() {
+    }
 
     public static Condition getInstance() {
         if (fInstance == null) {
@@ -57,9 +56,9 @@ public class ProwlCondition implements Condition {
     public boolean apply(Game game, Ability source) {
         Card card = game.getCard(source.getSourceId());
         if (card != null) {
-            for (Ability ability: card.getAbilities()) {
+            for (Ability ability : card.getAbilities()) {
                 if (ability instanceof ProwlAbility) {
-                    if(((ProwlAbility) ability).isActivated(source, game)) {
+                    if (((ProwlAbility) ability).isActivated(source, game)) {
                         return true;
                     }
                 }
@@ -67,4 +66,10 @@ public class ProwlCondition implements Condition {
         }
         return false;
     }
+
+    @Override
+    public String toString() {
+        return "{source}'s prowl cost was paid";
+    }
+
 }

Mage/src/main/java/mage/abilities/keyword/SurgeAbility.java

@@ -57,12 +57,13 @@ public class SurgeAbility extends SpellAbility {
         this.spellAbilityType = SpellAbilityType.BASE_ALTERNATE;
         this.timing = card.getSpellAbility().getTiming();
         this.setRuleAtTheTop(true);
-        rule = "Surge " + surgeCosts
+        this.rule = "Surge " + surgeCosts
                 + " <i>(You may cast this spell for its surge cost if you or a teammate has cast another spell this turn.)</i>";
     }
 
     public SurgeAbility(final SurgeAbility ability) {
         super(ability);
+        this.rule = ability.rule;
     }
 
     @Override