[NEO] Implemented Kami of Transience

Mage.Sets/src/mage/cards/k/KamiOfTransience.java

@@ -0,0 +1,122 @@
+package mage.cards.k;
+
+import mage.MageInt;
+import mage.abilities.Ability;
+import mage.abilities.common.BeginningOfEndStepTriggeredAbility;
+import mage.abilities.common.SpellCastControllerTriggeredAbility;
+import mage.abilities.condition.Condition;
+import mage.abilities.effects.common.ReturnSourceFromGraveyardToHandEffect;
+import mage.abilities.effects.common.counter.AddCountersSourceEffect;
+import mage.abilities.hint.ConditionHint;
+import mage.abilities.hint.Hint;
+import mage.abilities.keyword.TrampleAbility;
+import mage.cards.CardImpl;
+import mage.cards.CardSetInfo;
+import mage.constants.*;
+import mage.counters.CounterType;
+import mage.filter.FilterSpell;
+import mage.game.Game;
+import mage.game.events.GameEvent;
+import mage.game.events.ZoneChangeEvent;
+import mage.watchers.Watcher;
+
+import java.util.HashSet;
+import java.util.Set;
+import java.util.UUID;
+
+/**
+ * @author TheElk801
+ */
+public final class KamiOfTransience extends CardImpl {
+
+    private static final FilterSpell filter = new FilterSpell("an enchantment spell");
+
+    static {
+        filter.add(CardType.ENCHANTMENT.getPredicate());
+    }
+
+    public KamiOfTransience(UUID ownerId, CardSetInfo setInfo) {
+        super(ownerId, setInfo, new CardType[]{CardType.CREATURE}, "{1}{G}");
+
+        this.subtype.add(SubType.SPIRIT);
+        this.power = new MageInt(2);
+        this.toughness = new MageInt(2);
+
+        // Trample
+        this.addAbility(TrampleAbility.getInstance());
+
+        // Whenever you cast an enchantment spell, put a +1/+1 counter on Kami of Transience.
+        this.addAbility(new SpellCastControllerTriggeredAbility(
+                new AddCountersSourceEffect(CounterType.P1P1.createInstance()), filter, false
+        ));
+
+        // At the beginning of each end step, if an enchantment was put into your graveyard from the battlefield this turn, you may return Kami of Transience from your graveyard to your hand.
+        this.addAbility(new BeginningOfEndStepTriggeredAbility(
+                Zone.GRAVEYARD, new ReturnSourceFromGraveyardToHandEffect(),
+                TargetController.ANY, KamiOfTransienceCondition.instance, true
+        ).addHint(KamiOfTransienceCondition.getHint()), new KamiOfTransienceWatcher());
+    }
+
+    private KamiOfTransience(final KamiOfTransience card) {
+        super(card);
+    }
+
+    @Override
+    public KamiOfTransience copy() {
+        return new KamiOfTransience(this);
+    }
+}
+
+enum KamiOfTransienceCondition implements Condition {
+    instance;
+    private static final Hint hint = new ConditionHint(instance, "An enchantment went to your graveyard this turn");
+
+    @Override
+    public boolean apply(Game game, Ability source) {
+        return KamiOfTransienceWatcher.checkPlayer(game, source);
+    }
+
+    @Override
+    public String toString() {
+        return "if an enchantment was put into your graveyard from the battlefield this turn";
+    }
+
+    public static Hint getHint() {
+        return hint;
+    }
+}
+
+class KamiOfTransienceWatcher extends Watcher {
+
+    private final Set<UUID> playerSet = new HashSet<>();
+
+    KamiOfTransienceWatcher() {
+        super(WatcherScope.GAME);
+    }
+
+    @Override
+    public void watch(GameEvent event, Game game) {
+        if (event.getType() != GameEvent.EventType.ZONE_CHANGE) {
+            return;
+        }
+        ZoneChangeEvent zEvent = (ZoneChangeEvent) event;
+        if (!zEvent.isDiesEvent() || !zEvent.getTarget().isEnchantment(game)) {
+            return;
+        }
+        playerSet.add(zEvent.getTarget().getOwnerId());
+    }
+
+    @Override
+    public void reset() {
+        super.reset();
+        playerSet.clear();
+    }
+
+    public static boolean checkPlayer(Game game, Ability source) {
+        return game
+                .getState()
+                .getWatcher(KamiOfTransienceWatcher.class)
+                .playerSet
+                .contains(source.getControllerId());
+    }
+}

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

@@ -144,6 +144,7 @@ public final class KamigawaNeonDynasty extends ExpansionSet {
         cards.add(new SetCardInfo("Kaito's Pursuit", 103, Rarity.COMMON, mage.cards.k.KaitosPursuit.class));
         cards.add(new SetCardInfo("Kami of Restless Shadows", 104, Rarity.COMMON, mage.cards.k.KamiOfRestlessShadows.class));
         cards.add(new SetCardInfo("Kami of Terrible Secrets", 105, Rarity.COMMON, mage.cards.k.KamiOfTerribleSecrets.class));
+        cards.add(new SetCardInfo("Kami of Transience", 197, Rarity.RARE, mage.cards.k.KamiOfTransience.class));
         cards.add(new SetCardInfo("Kami's Flare", 150, Rarity.COMMON, mage.cards.k.KamisFlare.class));
         cards.add(new SetCardInfo("Kappa Tech-Wrecker", 198, Rarity.UNCOMMON, mage.cards.k.KappaTechWrecker.class));
         cards.add(new SetCardInfo("Kindled Fury", 151, Rarity.COMMON, mage.cards.k.KindledFury.class));