[CMM] Implement Battle at the Helvault

Mage.Sets/src/mage/cards/b/BattleAtTheHelvault.java

@@ -0,0 +1,90 @@
+package mage.cards.b;
+
+import mage.MageObject;
+import mage.abilities.Ability;
+import mage.abilities.common.SagaAbility;
+import mage.abilities.effects.common.CreateTokenEffect;
+import mage.abilities.effects.common.ExileUntilSourceLeavesEffect;
+import mage.cards.CardImpl;
+import mage.cards.CardSetInfo;
+import mage.constants.CardType;
+import mage.constants.SagaChapter;
+import mage.constants.SubType;
+import mage.filter.FilterPermanent;
+import mage.filter.common.FilterNonlandPermanent;
+import mage.filter.predicate.Predicate;
+import mage.filter.predicate.Predicates;
+import mage.filter.predicate.permanent.ControllerIdPredicate;
+import mage.game.Game;
+import mage.game.permanent.token.AvacynToken;
+import mage.players.Player;
+import mage.target.TargetPermanent;
+import mage.target.targetadjustment.TargetAdjuster;
+import mage.target.targetpointer.EachTargetPointer;
+
+import java.util.UUID;
+
+/**
+ * @author TheElk801
+ */
+public final class BattleAtTheHelvault extends CardImpl {
+
+    public BattleAtTheHelvault(UUID ownerId, CardSetInfo setInfo) {
+        super(ownerId, setInfo, new CardType[]{CardType.ENCHANTMENT}, "{4}{W}{W}");
+
+        this.subtype.add(SubType.SAGA);
+
+        // (As this Saga enters and after your draw step, add a lore counter.)
+        SagaAbility sagaAbility = new SagaAbility(this);
+
+        // I, II -- For each player, exile up to one target non-Saga, nonland permanent that player controls until Battle at the Helvault leaves the battlefield.
+        sagaAbility.addChapterEffect(
+                this, SagaChapter.CHAPTER_I, SagaChapter.CHAPTER_II,
+                (ability) -> {
+                    ability.addEffect(new ExileUntilSourceLeavesEffect()
+                            .setText("for each player, exile up to one target non-Saga, " +
+                                    "nonland permanent that player controls until {this} leaves the battlefield")
+                            .setTargetPointer(new EachTargetPointer()));
+                    ability.setTargetAdjuster(BattleAtTheHelvaultAdjuster.instance);
+                });
+
+        // III -- Create Avacyn, a legendary 8/8 white Angel creature token with flying, vigilance, and indestructible.
+        sagaAbility.addChapterEffect(
+                this, SagaChapter.CHAPTER_III,
+                new CreateTokenEffect(new AvacynToken())
+        );
+        this.addAbility(sagaAbility);
+    }
+
+    private BattleAtTheHelvault(final BattleAtTheHelvault card) {
+        super(card);
+    }
+
+    @Override
+    public BattleAtTheHelvault copy() {
+        return new BattleAtTheHelvault(this);
+    }
+}
+
+enum BattleAtTheHelvaultAdjuster implements TargetAdjuster {
+    instance;
+    private static final Predicate<MageObject> predicate = Predicates.not(SubType.SAGA.getPredicate());
+
+    @Override
+    public void adjustTargets(Ability ability, Game game) {
+        ability.getTargets().clear();
+        for (UUID playerId : game.getState().getPlayersInRange(ability.getControllerId(), game)) {
+            Player player = game.getPlayer(playerId);
+            if (player == null) {
+                continue;
+            }
+            FilterPermanent filter = new FilterNonlandPermanent(
+                    "non-Saga, nonland permanent "
+                            + (ability.isControlledBy(playerId) ? "you control" : "controlled by " + player.getName())
+            );
+            filter.add(predicate);
+            filter.add(new ControllerIdPredicate(playerId));
+            ability.addTarget(new TargetPermanent(0, 1, filter));
+        }
+    }
+}

Mage.Sets/src/mage/sets/CommanderMasters.java

@@ -64,6 +64,7 @@ public final class CommanderMasters extends ExpansionSet {
         cards.add(new SetCardInfo("Bane of Bala Ged", 802, Rarity.UNCOMMON, mage.cards.b.BaneOfBalaGed.class));
         cards.add(new SetCardInfo("Bastion of Remembrance", 138, Rarity.UNCOMMON, mage.cards.b.BastionOfRemembrance.class));
         cards.add(new SetCardInfo("Battle Screech", 17, Rarity.COMMON, mage.cards.b.BattleScreech.class));
+        cards.add(new SetCardInfo("Battle at the Helvault", 719, Rarity.RARE, mage.cards.b.BattleAtTheHelvault.class));
         cards.add(new SetCardInfo("Battle for Bretagard", 916, Rarity.RARE, mage.cards.b.BattleForBretagard.class));
         cards.add(new SetCardInfo("Beanstalk Giant", 275, Rarity.UNCOMMON, mage.cards.b.BeanstalkGiant.class));
         cards.add(new SetCardInfo("Binding the Old Gods", 917, Rarity.UNCOMMON, mage.cards.b.BindingTheOldGods.class));

Mage/src/main/java/mage/game/permanent/token/AvacynToken.java

@@ -0,0 +1,37 @@
+package mage.game.permanent.token;
+
+import mage.MageInt;
+import mage.abilities.keyword.FlyingAbility;
+import mage.abilities.keyword.IndestructibleAbility;
+import mage.abilities.keyword.VigilanceAbility;
+import mage.constants.CardType;
+import mage.constants.SubType;
+import mage.constants.SuperType;
+
+/**
+ * @author TheElk801
+ */
+public final class AvacynToken extends TokenImpl {
+
+    public AvacynToken() {
+        super("Avacyn", "Avacyn, a legendary 8/8 white Angel creature token with flying, vigilance, and indestructible");
+        supertype.add(SuperType.LEGENDARY);
+        cardType.add(CardType.CREATURE);
+        color.setWhite(true);
+        subtype.add(SubType.ANGEL);
+        power = new MageInt(8);
+        toughness = new MageInt(8);
+
+        this.addAbility(FlyingAbility.getInstance());
+        this.addAbility(IndestructibleAbility.getInstance());
+        this.addAbility(VigilanceAbility.getInstance());
+    }
+
+    public AvacynToken(final AvacynToken token) {
+        super(token);
+    }
+
+    public AvacynToken copy() {
+        return new AvacynToken(this);
+    }
+}