Implemented Nightpack Ambusher

Mage.Sets/src/mage/cards/n/NightpackAmbusher.java

@@ -0,0 +1,84 @@
+package mage.cards.n;
+
+import mage.MageInt;
+import mage.abilities.Ability;
+import mage.abilities.common.BeginningOfEndStepTriggeredAbility;
+import mage.abilities.common.SimpleStaticAbility;
+import mage.abilities.condition.Condition;
+import mage.abilities.decorator.ConditionalInterveningIfTriggeredAbility;
+import mage.abilities.effects.common.CreateTokenEffect;
+import mage.abilities.effects.common.continuous.BoostControlledEffect;
+import mage.abilities.keyword.FlashAbility;
+import mage.cards.CardImpl;
+import mage.cards.CardSetInfo;
+import mage.constants.CardType;
+import mage.constants.Duration;
+import mage.constants.SubType;
+import mage.constants.TargetController;
+import mage.filter.common.FilterCreaturePermanent;
+import mage.filter.predicate.Predicates;
+import mage.filter.predicate.mageobject.SubtypePredicate;
+import mage.game.Game;
+import mage.game.permanent.token.WolfToken;
+import mage.watchers.common.CastSpellLastTurnWatcher;
+
+import java.util.UUID;
+
+/**
+ * @author TheElk801
+ */
+public final class NightpackAmbusher extends CardImpl {
+
+    private static final FilterCreaturePermanent filter
+            = new FilterCreaturePermanent("Wolves and Werewolves");
+
+    static {
+        filter.add(Predicates.or(
+                new SubtypePredicate(SubType.WEREWOLF),
+                new SubtypePredicate(SubType.WOLF)
+        ));
+    }
+
+    public NightpackAmbusher(UUID ownerId, CardSetInfo setInfo) {
+        super(ownerId, setInfo, new CardType[]{CardType.CREATURE}, "{2}{G}{G}");
+
+        this.subtype.add(SubType.WOLF);
+        this.power = new MageInt(4);
+        this.toughness = new MageInt(4);
+
+        // Flash
+        this.addAbility(FlashAbility.getInstance());
+
+        // Other Wolves and Werewolves you control get +1/+1.
+        this.addAbility(new SimpleStaticAbility(new BoostControlledEffect(
+                1, 1, Duration.WhileOnBattlefield, filter, true
+        )));
+
+        // At the beginning of your end step, if you didn't cast a spell this turn, create a 2/2 green Wolf creature token.
+        this.addAbility(new ConditionalInterveningIfTriggeredAbility(
+                new BeginningOfEndStepTriggeredAbility(
+                        new CreateTokenEffect(new WolfToken()), TargetController.YOU, false
+                ), NightpackAmbusherCondition.instance, "At the beginning of your end step, " +
+                "if you didn't cast a spell this turn, create a 2/2 green Wolf creature token."
+        ));
+    }
+
+    private NightpackAmbusher(final NightpackAmbusher card) {
+        super(card);
+    }
+
+    @Override
+    public NightpackAmbusher copy() {
+        return new NightpackAmbusher(this);
+    }
+}
+
+enum NightpackAmbusherCondition implements Condition {
+    instance;
+
+    @Override
+    public boolean apply(Game game, Ability source) {
+        CastSpellLastTurnWatcher watcher = game.getState().getWatcher(CastSpellLastTurnWatcher.class);
+        return watcher != null && watcher.getAmountOfSpellsPlayerCastOnCurrentTurn(source.getControllerId()) == 0;
+    }
+}

Mage.Sets/src/mage/sets/CoreSet2020.java

@@ -107,6 +107,7 @@ public final class CoreSet2020 extends ExpansionSet {
         cards.add(new SetCardInfo("Mu Yanling, Sky Dancer", 68, Rarity.MYTHIC, mage.cards.m.MuYanlingSkyDancer.class));
         cards.add(new SetCardInfo("Murder", 109, Rarity.COMMON, mage.cards.m.Murder.class));
         cards.add(new SetCardInfo("Negate", 69, Rarity.COMMON, mage.cards.n.Negate.class));
+        cards.add(new SetCardInfo("Nightpack Ambusher", 185, Rarity.RARE, mage.cards.n.NightpackAmbusher.class));
         cards.add(new SetCardInfo("Octoprophet", 70, Rarity.COMMON, mage.cards.o.Octoprophet.class));
         cards.add(new SetCardInfo("Ogre Siegebreaker", 215, Rarity.UNCOMMON, mage.cards.o.OgreSiegebreaker.class));
         cards.add(new SetCardInfo("Pacifism", 32, Rarity.COMMON, mage.cards.p.Pacifism.class));