Implemented Ravenous Slime

Mage.Sets/src/mage/cards/r/RavenousSlime.java

@@ -0,0 +1,141 @@
+package mage.cards.r;
+
+import java.util.UUID;
+import mage.MageInt;
+import mage.abilities.Ability;
+import mage.abilities.common.SimpleEvasionAbility;
+import mage.abilities.common.SimpleStaticAbility;
+import mage.abilities.effects.ReplacementEffectImpl;
+import mage.abilities.effects.common.combat.CantBeBlockedByCreaturesSourceEffect;
+import mage.abilities.effects.common.counter.AddCountersSourceEffect;
+import mage.constants.SubType;
+import mage.cards.CardImpl;
+import mage.cards.CardSetInfo;
+import mage.constants.CardType;
+import mage.constants.ComparisonType;
+import mage.constants.Duration;
+import mage.constants.Outcome;
+import mage.constants.Zone;
+import mage.counters.CounterType;
+import mage.filter.common.FilterCreaturePermanent;
+import mage.filter.predicate.mageobject.PowerPredicate;
+import mage.game.Game;
+import mage.game.events.GameEvent;
+import mage.game.events.ZoneChangeEvent;
+import mage.game.permanent.Permanent;
+import mage.players.Player;
+
+/**
+ *
+ * @author TheElk801
+ */
+public final class RavenousSlime extends CardImpl {
+
+    private static final FilterCreaturePermanent filter
+            = new FilterCreaturePermanent("creatures with power 2 or less");
+
+    static {
+        filter.add(new PowerPredicate(ComparisonType.FEWER_THAN, 3));
+    }
+
+    public RavenousSlime(UUID ownerId, CardSetInfo setInfo) {
+        super(ownerId, setInfo, new CardType[]{CardType.CREATURE}, "{2}{G}");
+
+        this.subtype.add(SubType.OOZE);
+        this.power = new MageInt(1);
+        this.toughness = new MageInt(1);
+
+        // Ravenous Slime can't be blocked by creatures with power 2 or less.
+        this.addAbility(new SimpleEvasionAbility(
+                new CantBeBlockedByCreaturesSourceEffect(
+                        filter, Duration.WhileOnBattlefield
+                )
+        ));
+
+        // If a creature an opponent controls would die, instead exile it and put a number of +1/+1 counters equal to that creature's power on Ravenous Slime.
+        this.addAbility(new SimpleStaticAbility(
+                Zone.BATTLEFIELD,
+                new RavenousSlimeEffect()
+        ));
+    }
+
+    public RavenousSlime(final RavenousSlime card) {
+        super(card);
+    }
+
+    @Override
+    public RavenousSlime copy() {
+        return new RavenousSlime(this);
+    }
+}
+
+class RavenousSlimeEffect extends ReplacementEffectImpl {
+
+    public RavenousSlimeEffect() {
+        super(Duration.WhileOnBattlefield, Outcome.Benefit);
+        staticText = "If a creature an opponent controls would die, "
+                + "instead exile it and put a number of +1/+1 counters "
+                + "equal to that creature's power on {this}";
+    }
+
+    public RavenousSlimeEffect(final RavenousSlimeEffect effect) {
+        super(effect);
+    }
+
+    @Override
+    public RavenousSlimeEffect copy() {
+        return new RavenousSlimeEffect(this);
+    }
+
+    @Override
+    public boolean apply(Game game, Ability source) {
+        return true;
+    }
+
+    @Override
+    public boolean replaceEvent(GameEvent event, Ability source, Game game) {
+        Player controller = game.getPlayer(source.getControllerId());
+        Permanent sourceCreature = game.getPermanent(source.getSourceId());
+        if (controller == null || sourceCreature == null) {
+            return false;
+        }
+        if (((ZoneChangeEvent) event).getFromZone() != Zone.BATTLEFIELD) {
+            return false;
+        }
+        Permanent permanent = ((ZoneChangeEvent) event).getTarget();
+        if (permanent == null) {
+            return false;
+        }
+        int power = permanent.getPower().getValue();
+        controller.moveCards(permanent, Zone.EXILED, source, game);
+        return new AddCountersSourceEffect(
+                CounterType.P1P1.createInstance(power)
+        ).apply(game, source);
+    }
+
+    @Override
+    public boolean checksEventType(GameEvent event, Game game) {
+        return event.getType() == GameEvent.EventType.ZONE_CHANGE;
+    }
+
+    @Override
+    public boolean applies(GameEvent event, Ability source, Game game) {
+        ZoneChangeEvent zEvent = (ZoneChangeEvent) event;
+        if (zEvent.getToZone() != Zone.GRAVEYARD) {
+            return false;
+        }
+        Permanent permanent = ((ZoneChangeEvent) event).getTarget();
+        if (permanent == null
+                || !game.getOpponents(source.getControllerId()).contains(permanent.getControllerId())) {
+            return false;
+        }
+        if (zEvent.getTarget() != null) { // if it comes from permanent, check if it was a creature on the battlefield
+            if (zEvent.getTarget().isCreature()) {
+                return true;
+            }
+        } else if (permanent.isCreature()) {
+            return true;
+        }
+        return false;
+    }
+}

Mage.Sets/src/mage/sets/Commander2018.java

@@ -53,6 +53,7 @@ public final class Commander2018 extends ExpansionSet {
         cards.add(new SetCardInfo("Nylea's Colossus", 33, Rarity.RARE, mage.cards.n.NyleasColossus.class));
         cards.add(new SetCardInfo("Octopus Umbra", 11, Rarity.RARE, mage.cards.o.OctopusUmbra.class));
         cards.add(new SetCardInfo("Rampaging Baloths", 158, Rarity.RARE, mage.cards.r.RampagingBaloths.class));
+        cards.add(new SetCardInfo("Ravenous Slime", 34, Rarity.RARE, mage.cards.r.RavenousSlime.class));
         cards.add(new SetCardInfo("Retrofitter Foundry", 57, Rarity.RARE, mage.cards.r.RetrofitterFoundry.class));
         cards.add(new SetCardInfo("Ruinous Path", 117, Rarity.RARE, mage.cards.r.RuinousPath.class));
         cards.add(new SetCardInfo("Saheeli's Directive", 26, Rarity.RARE, mage.cards.s.SaheelisDirective.class));