[MKM] Implement Conspiracy Unraveler

Mage.Sets/src/mage/cards/c/ConspiracyUnraveler.java

@@ -0,0 +1,94 @@
+package mage.cards.c;
+
+import mage.MageInt;
+import mage.abilities.Ability;
+import mage.abilities.common.SimpleStaticAbility;
+import mage.abilities.condition.common.SourceIsSpellCondition;
+import mage.abilities.costs.AlternativeCostSourceAbility;
+import mage.abilities.costs.common.CollectEvidenceCost;
+import mage.abilities.effects.ContinuousEffectImpl;
+import mage.abilities.keyword.FlyingAbility;
+import mage.cards.CardImpl;
+import mage.cards.CardSetInfo;
+import mage.constants.*;
+import mage.game.Game;
+import mage.players.Player;
+
+import java.util.UUID;
+
+/**
+ * @author Susucr
+ */
+public final class ConspiracyUnraveler extends CardImpl {
+
+    public ConspiracyUnraveler(UUID ownerId, CardSetInfo setInfo) {
+        super(ownerId, setInfo, new CardType[]{CardType.CREATURE}, "{5}{U}{U}");
+
+        this.subtype.add(SubType.SPHINX);
+        this.subtype.add(SubType.DETECTIVE);
+        this.power = new MageInt(6);
+        this.toughness = new MageInt(6);
+
+        // Flying
+        this.addAbility(FlyingAbility.getInstance());
+
+        // You may collect evidence 10 rather than pay the mana cost for spells that you cast.
+        this.addAbility(new SimpleStaticAbility(new ConspiracyUnravelerInsteadEffect()));
+    }
+
+    private ConspiracyUnraveler(final ConspiracyUnraveler card) {
+        super(card);
+    }
+
+    @Override
+    public ConspiracyUnraveler copy() {
+        return new ConspiracyUnraveler(this);
+    }
+}
+
+// Inspired by WUBRGInsteadEffect
+class ConspiracyUnravelerInsteadEffect extends ContinuousEffectImpl {
+
+    private final AlternativeCostSourceAbility alternativeCastingCostAbility = new AlternativeCostSourceAbility(new CollectEvidenceCost(10), SourceIsSpellCondition.instance);
+
+    ConspiracyUnravelerInsteadEffect() {
+        super(Duration.WhileOnBattlefield, Outcome.Detriment);
+        staticText = "You may collect evidence 10 rather than pay the mana cost for spells that you cast";
+    }
+
+    protected ConspiracyUnravelerInsteadEffect(final ConspiracyUnravelerInsteadEffect effect) {
+        super(effect);
+    }
+
+    @Override
+    public ConspiracyUnravelerInsteadEffect copy() {
+        return new ConspiracyUnravelerInsteadEffect(this);
+    }
+
+    @Override
+    public void init(Ability source, Game game, UUID activePlayerId) {
+        super.init(source, game, activePlayerId);
+        alternativeCastingCostAbility.setSourceId(source.getSourceId());
+    }
+
+    @Override
+    public boolean apply(Layer layer, SubLayer sublayer, Ability source, Game game) {
+        Player controller = game.getPlayer(source.getControllerId());
+        if (controller != null) {
+            controller.getAlternativeSourceCosts().add(alternativeCastingCostAbility);
+            return true;
+        }
+        return false;
+    }
+
+    @Override
+    public boolean apply(Game game, Ability source) {
+        return false;
+    }
+
+    @Override
+    public boolean hasLayer(Layer layer) {
+        return layer == Layer.RulesEffects;
+    }
+
+}

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

@@ -82,6 +82,7 @@ public final class MurdersAtKarlovManor extends ExpansionSet {
         cards.add(new SetCardInfo("Concealed Weapon", 117, Rarity.UNCOMMON, mage.cards.c.ConcealedWeapon.class));
         cards.add(new SetCardInfo("Connecting the Dots", 118, Rarity.RARE, mage.cards.c.ConnectingTheDots.class, NON_FULL_USE_VARIOUS));
         cards.add(new SetCardInfo("Connecting the Dots", 403, Rarity.RARE, mage.cards.c.ConnectingTheDots.class, NON_FULL_USE_VARIOUS));
+        cards.add(new SetCardInfo("Conspiracy Unraveler", 47, Rarity.MYTHIC, mage.cards.c.ConspiracyUnraveler.class));
         cards.add(new SetCardInfo("Convenient Target", 119, Rarity.UNCOMMON, mage.cards.c.ConvenientTarget.class));
         cards.add(new SetCardInfo("Cornered Crook", 120, Rarity.UNCOMMON, mage.cards.c.CorneredCrook.class));
         cards.add(new SetCardInfo("Crime Novelist", 121, Rarity.UNCOMMON, mage.cards.c.CrimeNovelist.class));

Mage.Tests/src/test/java/org/mage/test/cards/cost/additional/CollectEvidenceTest.java

@@ -21,6 +21,7 @@ public class CollectEvidenceTest extends CardTestPlayerBase {
     private static final String effigy = "Fuming Effigy";
     private static final String sprite = "Crimestopper Sprite";
     private static final String monitor = "Surveillance Monitor";
+    private static final String unraveler = "Conspiracy Unraveler";
 
     @Test
     public void testNoPay() {
@@ -291,4 +292,22 @@ public class CollectEvidenceTest extends CardTestPlayerBase {
         assertTapped(sprite, true);
         assertCounterCount(sprite, CounterType.STUN, 1);
     }
+
+    @Test
+    public void testConspiracyUnraveler() {
+        addCard(Zone.BATTLEFIELD, playerA, unraveler);
+        addCard(Zone.HAND, playerA, "Colossal Dreadmaw");
+        addCard(Zone.GRAVEYARD, playerA, ogre, 4);
+
+        castSpell(1, PhaseStep.PRECOMBAT_MAIN, playerA, "Colossal Dreadmaw");
+        setChoice(playerA, true); // use alternative cast from unraveler
+        setChoice(playerA, ogre, 4); // pay for collect evidence
+
+        setStrictChooseMode(true);
+        setStopAt(1, PhaseStep.END_TURN);
+        execute();
+
+        assertExileCount(ogre, 4);
+        assertPermanentCount(playerA, "Colossal Dreadmaw", 1);
+    }
 }