* Added missing check for damage prevention by protection for planeswalkers (fixes #7194).

Mage.Tests/src/test/java/org/mage/test/cards/protection/EightAndAHalfTailsTest.java

@@ -0,0 +1,53 @@
+/*
+ * To change this license header, choose License Headers in Project Properties.
+ * To change this template file, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package org.mage.test.cards.protection;
+
+import mage.constants.PhaseStep;
+import mage.constants.Zone;
+import mage.counters.CounterType;
+import org.junit.Test;
+import org.mage.test.serverside.base.CardTestPlayerBase;
+
+
+/**
+ *
+ * @author LevelX2
+ */
+public class EightAndAHalfTailsTest extends CardTestPlayerBase {
+
+    @Test
+    public void testProtectingPlaneswalker() {
+        setStrictChooseMode(true);
+        
+        addCard(Zone.BATTLEFIELD, playerA, "Plains", 2);
+
+        // Activated abilities of artifacts your opponents control can't be activated.
+        // +1: Until your next turn, up to one target noncreature artifact becomes an artifact creature with power and toughness equal to its converted mana cost.
+        // -2: You may choose an artifact card you own from outside the game or in exile, reveal that card, and put it into your hand.
+        addCard(Zone.BATTLEFIELD, playerA, "Karn, the Great Creator"); // Planeswalker (5)
+        
+        // {1}{W}: Target permanent you control gains protection from white until end of turn.
+        // {1}: Target spell or permanent becomes white until end of turn.
+        addCard(Zone.BATTLEFIELD, playerA, "Eight-and-a-Half-Tails"); // Creature
+        
+        // Flying, double strike
+        // Whenever a creature you control deals combat damage to a player, you and that player each gain that much life.
+        // At the beginning of your end step, if you have at least 15 life more than your starting life total, each player Angel of Destiny attacked this turn loses the game.
+        addCard(Zone.BATTLEFIELD, playerB, "Angel of Destiny"); // Creature
+
+        attack(2, playerB, "Angel of Destiny", "Karn, the Great Creator");
+        activateAbility(2, PhaseStep.DECLARE_ATTACKERS, playerA, "{1}{W}: Target permanent you control gains protection from white until end of turn.");
+        addTarget(playerA, "Karn, the Great Creator");
+        
+        setStopAt(2, PhaseStep.END_COMBAT);
+        execute();
+
+        assertPermanentCount(playerA, "Karn, the Great Creator", 1);
+        assertCounterCount("Karn, the Great Creator", CounterType.LOYALTY, 5);
+        
+    }
+
+}

Mage/src/main/java/mage/game/permanent/PermanentImpl.java

@@ -973,7 +973,7 @@ public abstract class PermanentImpl extends CardImpl implements Permanent {
         GameEvent event = new DamagePlaneswalkerEvent(objectId, sourceId, controllerId, damage, preventable, combat);
         event.setAppliedEffects(appliedEffects);
         if (!game.replaceEvent(event)) {
-            int actualDamage = event.getAmount();
+            int actualDamage = checkProtectionAbilities(event, sourceId, game);
             if (actualDamage > 0) {
                 int countersToRemove = actualDamage;
                 if (countersToRemove > getCounters(game).getCount(CounterType.LOYALTY)) {