[BRO] Implemented Splitting the Powerstone

Mage.Sets/src/mage/cards/s/SplittingThePowerstone.java

@@ -0,0 +1,63 @@
+package mage.cards.s;
+
+import mage.MageObject;
+import mage.abilities.Ability;
+import mage.abilities.condition.Condition;
+import mage.abilities.costs.common.SacrificeTargetCost;
+import mage.abilities.decorator.ConditionalOneShotEffect;
+import mage.abilities.effects.common.CreateTokenEffect;
+import mage.abilities.effects.common.DrawCardSourceControllerEffect;
+import mage.cards.CardImpl;
+import mage.cards.CardSetInfo;
+import mage.constants.CardType;
+import mage.filter.StaticFilters;
+import mage.game.Game;
+import mage.game.permanent.token.PowerstoneToken;
+import mage.util.CardUtil;
+
+import java.util.Collection;
+import java.util.Objects;
+import java.util.UUID;
+
+/**
+ * @author TheElk801
+ */
+public final class SplittingThePowerstone extends CardImpl {
+
+    public SplittingThePowerstone(UUID ownerId, CardSetInfo setInfo) {
+        super(ownerId, setInfo, new CardType[]{CardType.SORCERY}, "{2}{U}");
+
+        // As an additional cost to cast this spell, sacrifice an artifact.
+        this.getSpellAbility().addCost(new SacrificeTargetCost(StaticFilters.FILTER_CONTROLLED_PERMANENT_ARTIFACT_AN));
+
+        // Create two tapped Powerstone tokens. If the sacrificed artifact was legendary, draw a card.
+        this.getSpellAbility().addEffect(new CreateTokenEffect(new PowerstoneToken(), 2, false));
+        this.getSpellAbility().addEffect(new ConditionalOneShotEffect(
+                new DrawCardSourceControllerEffect(1), SplittingThePowerstoneCondition.instance,
+                "If the sacrificed artifact was legendary, draw a card"
+        ));
+    }
+
+    private SplittingThePowerstone(final SplittingThePowerstone card) {
+        super(card);
+    }
+
+    @Override
+    public SplittingThePowerstone copy() {
+        return new SplittingThePowerstone(this);
+    }
+}
+
+enum SplittingThePowerstoneCondition implements Condition {
+    instance;
+
+    @Override
+    public boolean apply(Game game, Ability source) {
+        return CardUtil
+                .castStream(source.getCosts().stream(), SacrificeTargetCost.class)
+                .map(SacrificeTargetCost::getPermanents)
+                .flatMap(Collection::stream)
+                .filter(Objects::nonNull)
+                .anyMatch(MageObject::isLegendary);
+    }
+}

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

@@ -47,9 +47,9 @@ public final class UrzaPowerstoneProdigy extends CardImpl {
         this.addAbility(ability);
 
         // Whenever you discard one or more artifact cards, create a tapped Powerstone token. This ability triggers only once each turn.
-        this.addAbility(new DiscardCardControllerTriggeredAbility(new CreateTokenEffect(
+        this.addAbility(new DiscardCardControllerTriggeredAbility(
-                new PowerstoneToken(), 1, true, false
+                new CreateTokenEffect(new PowerstoneToken(), 1, true), false, filter
-        ), false, filter).setTriggersOnce(true));
+        ).setTriggersOnce(true));
     }
 
     private UrzaPowerstoneProdigy(final UrzaPowerstoneProdigy card) {

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

@@ -36,6 +36,7 @@ public final class TheBrothersWar extends ExpansionSet {
         cards.add(new SetCardInfo("Queen Kayla bin-Kroog", 218, Rarity.RARE, mage.cards.q.QueenKaylaBinKroog.class));
         cards.add(new SetCardInfo("Recruitment Officer", 23, Rarity.UNCOMMON, mage.cards.r.RecruitmentOfficer.class));
         cards.add(new SetCardInfo("Scrapwork Cohort", 37, Rarity.COMMON, mage.cards.s.ScrapworkCohort.class));
+        cards.add(new SetCardInfo("Splitting the Powerstone", 63, Rarity.UNCOMMON, mage.cards.s.SplittingThePowerstone.class));
         cards.add(new SetCardInfo("Surge Engine", 81, Rarity.MYTHIC, mage.cards.s.SurgeEngine.class));
         cards.add(new SetCardInfo("Swamp", 282, Rarity.LAND, mage.cards.basiclands.Swamp.class, FULL_ART_BFZ_VARIOUS));
         cards.add(new SetCardInfo("The Mightstone and Weakstone", "238a", Rarity.RARE, mage.cards.t.TheMightstoneAndWeakstone.class));

Mage/src/main/java/mage/abilities/effects/common/CreateTokenEffect.java

@@ -43,6 +43,10 @@ public class CreateTokenEffect extends OneShotEffect {
         this(token, amount, false, false);
     }
 
+    public CreateTokenEffect(Token token, int amount, boolean tapped) {
+        this(token, amount, tapped, false);
+    }
+
     public CreateTokenEffect(Token token, int amount, boolean tapped, boolean attacking) {
         this(token, StaticValue.get(amount), tapped, attacking);
     }