[TDM] Implement Diviner of Mist

Mage.Sets/src/mage/cards/d/DivinerOfMist.java

@@ -0,0 +1,148 @@
+package mage.cards.d;
+
+import java.util.UUID;
+import mage.MageInt;
+import mage.MageObjectReference;
+import mage.abilities.Ability;
+import mage.abilities.common.AttacksTriggeredAbility;
+import mage.abilities.effects.OneShotEffect;
+import mage.abilities.effects.ReplacementEffectImpl;
+import mage.cards.Card;
+import mage.cards.Cards;
+import mage.constants.*;
+import mage.abilities.keyword.FlyingAbility;
+import mage.cards.CardImpl;
+import mage.cards.CardSetInfo;
+import mage.filter.FilterCard;
+import mage.filter.common.FilterInstantOrSorceryCard;
+import mage.filter.predicate.mageobject.ManaValuePredicate;
+import mage.game.Game;
+import mage.game.events.GameEvent;
+import mage.game.events.ZoneChangeEvent;
+import mage.players.Player;
+import mage.target.Target;
+import mage.target.common.TargetCardInYourGraveyard;
+import mage.util.CardUtil;
+
+/**
+ *
+ * @author Jmlundeen
+ */
+public final class DivinerOfMist extends CardImpl {
+
+    public DivinerOfMist(UUID ownerId, CardSetInfo setInfo) {
+        super(ownerId, setInfo, new CardType[]{CardType.CREATURE}, "{4}{U}");
+        
+        this.subtype.add(SubType.DRAGON);
+        this.power = new MageInt(4);
+        this.toughness = new MageInt(5);
+
+        // Flying
+        this.addAbility(FlyingAbility.getInstance());
+
+        // Whenever this creature attacks, mill four cards. You may cast an instant or sorcery spell from your graveyard with mana value 4 or less without paying its mana cost. If that spell would be put into your graveyard, exile it instead.
+        Ability ability = new AttacksTriggeredAbility(new DivinerOfMistEffect());
+        ability.addEffect(new DivinerOfMistReplacementEffect());
+        this.addAbility(ability);
+    }
+
+    private DivinerOfMist(final DivinerOfMist card) {
+        super(card);
+    }
+
+    @Override
+    public DivinerOfMist copy() {
+        return new DivinerOfMist(this);
+    }
+}
+
+class DivinerOfMistEffect extends OneShotEffect {
+
+    public DivinerOfMistEffect() {
+        super(Outcome.PlayForFree);
+        staticText = "mill four cards. You may cast an instant or sorcery spell from your graveyard with mana value 4 or less without paying its mana cost";
+    }
+
+    protected DivinerOfMistEffect(final DivinerOfMistEffect effect) {
+        super(effect);
+    }
+
+    @Override
+    public DivinerOfMistEffect copy() {
+        return new DivinerOfMistEffect(this);
+    }
+
+    @Override
+    public boolean apply(Game game, Ability source) {
+        Player controller = game.getPlayer(source.getControllerId());
+        if (controller == null) {
+            return false;
+        }
+        Cards milledCards = controller.millCards(4, source, game);
+        boolean hasTarget = controller.getGraveyard().getCards(game)
+                .stream()
+                .anyMatch(card -> card.getManaValue() <= 4 && card.isInstantOrSorcery(game));
+        if (!hasTarget) {
+            return true;
+        }
+        FilterCard filter = new FilterInstantOrSorceryCard();
+        filter.add(new ManaValuePredicate(ComparisonType.OR_LESS, 4));
+        Target target = new TargetCardInYourGraveyard(filter);
+        target.withNotTarget(true);
+        controller.chooseTarget(Outcome.PlayForFree, target, source, game);
+        Card card = game.getCard(target.getFirstTarget());
+        if (card != null) {
+            card = card.getMainCard();
+            game.getState().setValue("DivinerOfMist", new MageObjectReference(card, game));
+            return CardUtil.castSpellWithAttributesForFree(controller, source, game, card, filter);
+        }
+        return true;
+    }
+}
+
+class DivinerOfMistReplacementEffect extends ReplacementEffectImpl {
+
+    public DivinerOfMistReplacementEffect() {
+        super(Duration.EndOfGame, Outcome.Exile);
+        staticText = "If that spell would be put into your graveyard, exile it instead.";
+    }
+
+    protected DivinerOfMistReplacementEffect(final DivinerOfMistReplacementEffect effect) {
+        super(effect);
+    }
+
+    @Override
+    public DivinerOfMistReplacementEffect copy() {
+        return new DivinerOfMistReplacementEffect(this);
+    }
+
+    @Override
+    public boolean replaceEvent(GameEvent event, Ability source, Game game) {
+        Player controller = game.getPlayer(source.getControllerId());
+        if (controller != null) {
+            MageObjectReference card = (MageObjectReference) game.getState().getValue("DivinerOfMist");
+            if (card != null) {
+                ((ZoneChangeEvent) event).setToZone(Zone.EXILED);
+            }
+        }
+        return false;
+    }
+
+    @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) {
+        if (Zone.GRAVEYARD == ((ZoneChangeEvent) event).getToZone()) {
+            Card eventCard = game.getCard(event.getSourceId());
+            MageObjectReference cardMor = (MageObjectReference) game.getState().getValue("DivinerOfMist");
+            if (eventCard != null && cardMor != null) {
+                int zcc = eventCard.getZoneChangeCounter(game);
+                return eventCard.getId().equals(cardMor.getSourceId()) && zcc == (cardMor.getZoneChangeCounter() + 1);
+            }
+        }
+        return false;
+    }
+}

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

@@ -107,6 +107,8 @@ public final class TarkirDragonstormCommander extends ExpansionSet {
         cards.add(new SetCardInfo("Disciple of Bolas", 178, Rarity.RARE, mage.cards.d.DiscipleOfBolas.class));
         cards.add(new SetCardInfo("Dismantling Wave", 112, Rarity.RARE, mage.cards.d.DismantlingWave.class));
         cards.add(new SetCardInfo("Divine Visitation", 113, Rarity.MYTHIC, mage.cards.d.DivineVisitation.class));
+        cards.add(new SetCardInfo("Diviner of Mist", 20, Rarity.RARE, mage.cards.d.DivinerOfMist.class, NON_FULL_USE_VARIOUS));
+        cards.add(new SetCardInfo("Diviner of Mist", 60, Rarity.RARE, mage.cards.d.DivinerOfMist.class, NON_FULL_USE_VARIOUS));
         cards.add(new SetCardInfo("Draconic Lore", 151, Rarity.COMMON, mage.cards.d.DraconicLore.class));
         cards.add(new SetCardInfo("Dragon Tempest", 94, Rarity.UNCOMMON, mage.cards.d.DragonTempest.class));
         cards.add(new SetCardInfo("Dragon's Hoard", 317, Rarity.RARE, mage.cards.d.DragonsHoard.class));