[DSK] Implement Unwilling Vessel

Mage.Sets/src/mage/cards/u/UnwillingVessel.java

@@ -0,0 +1,91 @@
+package mage.cards.u;
+
+import mage.MageInt;
+import mage.abilities.Ability;
+import mage.abilities.abilityword.EerieAbility;
+import mage.abilities.common.DiesSourceTriggeredAbility;
+import mage.abilities.effects.OneShotEffect;
+import mage.abilities.effects.common.counter.AddCountersSourceEffect;
+import mage.abilities.keyword.VigilanceAbility;
+import mage.cards.CardImpl;
+import mage.cards.CardSetInfo;
+import mage.constants.CardType;
+import mage.constants.Outcome;
+import mage.constants.SubType;
+import mage.counters.Counter;
+import mage.counters.CounterType;
+import mage.game.Game;
+import mage.game.permanent.token.SpiritBlueToken;
+import mage.game.permanent.token.Token;
+
+import java.util.Collection;
+import java.util.HashMap;
+import java.util.Optional;
+import java.util.UUID;
+import java.util.stream.IntStream;
+
+/**
+ * @author TheElk801
+ */
+public final class UnwillingVessel extends CardImpl {
+
+    public UnwillingVessel(UUID ownerId, CardSetInfo setInfo) {
+        super(ownerId, setInfo, new CardType[]{CardType.CREATURE}, "{2}{U}");
+
+        this.subtype.add(SubType.HUMAN);
+        this.subtype.add(SubType.WIZARD);
+        this.power = new MageInt(3);
+        this.toughness = new MageInt(2);
+
+        // Vigilance
+        this.addAbility(VigilanceAbility.getInstance());
+
+        // Eerie -- Whenever an enchantment you control enters and whenever you fully unlock a Room, put a possession counter on Unwilling Vessel.
+        this.addAbility(new EerieAbility(new AddCountersSourceEffect(CounterType.POSSESSION.createInstance())));
+
+        // When Unwilling Vessel dies, create an X/X blue Spirit creature token with flying, where X is the number of counters on Unwilling Vessel.
+        this.addAbility(new DiesSourceTriggeredAbility(new UnwillingVesselEffect()));
+    }
+
+    private UnwillingVessel(final UnwillingVessel card) {
+        super(card);
+    }
+
+    @Override
+    public UnwillingVessel copy() {
+        return new UnwillingVessel(this);
+    }
+}
+
+class UnwillingVesselEffect extends OneShotEffect {
+
+    UnwillingVesselEffect() {
+        super(Outcome.Benefit);
+        staticText = "create an X/X blue Spirit creature token with flying, where X is the number of counters on {this}";
+    }
+
+    private UnwillingVesselEffect(final UnwillingVesselEffect effect) {
+        super(effect);
+    }
+
+    @Override
+    public UnwillingVesselEffect copy() {
+        return new UnwillingVesselEffect(this);
+    }
+
+    @Override
+    public boolean apply(Game game, Ability source) {
+        int count = Optional
+                .ofNullable(source.getSourcePermanentOrLKI(game))
+                .map(permanent -> permanent.getCounters(game))
+                .map(HashMap::values)
+                .map(Collection::stream)
+                .map(s -> s.mapToInt(Counter::getCount))
+                .map(IntStream::sum)
+                .orElse(0);
+        Token token = new SpiritBlueToken();
+        token.setPower(count);
+        token.setToughness(count);
+        return token.putOntoBattlefield(1, game, source);
+    }
+}

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

@@ -62,6 +62,7 @@ public final class DuskmournHouseOfHorror extends ExpansionSet {
         cards.add(new SetCardInfo("Toby, Beastie Befriender", 35, Rarity.RARE, mage.cards.t.TobyBeastieBefriender.class));
         cards.add(new SetCardInfo("Tyvar, the Pummeler", 408, Rarity.MYTHIC, mage.cards.t.TyvarThePummeler.class));
         cards.add(new SetCardInfo("Unwanted Remake", 39, Rarity.UNCOMMON, mage.cards.u.UnwantedRemake.class));
+        cards.add(new SetCardInfo("Unwilling Vessel", 81, Rarity.UNCOMMON, mage.cards.u.UnwillingVessel.class));
         cards.add(new SetCardInfo("Valgavoth's Lair", 271, Rarity.RARE, mage.cards.v.ValgavothsLair.class));
         cards.add(new SetCardInfo("Veteran Survivor", 40, Rarity.UNCOMMON, mage.cards.v.VeteranSurvivor.class));
         cards.add(new SetCardInfo("Winter, Misanthropic Guide", 240, Rarity.RARE, mage.cards.w.WinterMisanthropicGuide.class));

Mage/src/main/java/mage/counters/CounterType.java

@@ -174,6 +174,7 @@ public enum CounterType {
     POLYP("polyp"),
     POINT("point"),
     POISON("poison"),
+    POSSESSION("possession"),
     PRESSURE("pressure"),
     PREY("prey"),
     PUPA("pupa"),