[KHM] Implemented Blood on the Snow (#7428)

* [KHM] Implemented Blood on the Snow

* [KHM] Blood on the Snow - Changed target text

* [KHM] Blood on the Snow - Fixed rule text

Mage.Sets/src/mage/cards/b/BloodOnTheSnow.java

@@ -0,0 +1,93 @@
+package mage.cards.b;
+
+import java.util.UUID;
+
+import mage.abilities.Ability;
+import mage.abilities.Mode;
+import mage.abilities.effects.OneShotEffect;
+import mage.abilities.effects.common.DestroyAllEffect;
+import mage.cards.Card;
+import mage.constants.*;
+import mage.cards.CardImpl;
+import mage.cards.CardSetInfo;
+import mage.filter.FilterCard;
+import mage.filter.StaticFilters;
+import mage.filter.predicate.Predicates;
+import mage.filter.predicate.mageobject.ConvertedManaCostPredicate;
+import mage.game.Game;
+import mage.players.Player;
+import mage.target.common.TargetCardInYourGraveyard;
+
+/**
+ *
+ * @author weirddan455
+ */
+public final class BloodOnTheSnow extends CardImpl {
+
+    public BloodOnTheSnow(UUID ownerId, CardSetInfo setInfo) {
+        super(ownerId, setInfo, new CardType[]{CardType.SORCERY}, "{4}{B}{B}");
+
+        this.addSuperType(SuperType.SNOW);
+
+        // Choose one —
+        // • Destroy all creatures.
+        this.getSpellAbility().addEffect(new DestroyAllEffect(StaticFilters.FILTER_PERMANENT_CREATURES));
+
+        // • Destroy all planeswalkers.
+        Mode mode = new Mode(new DestroyAllEffect(StaticFilters.FILTER_PERMANENT_PLANESWALKERS));
+
+        // Then return a creature or planeswalker card with converted mana cost X or less
+        // from your graveyard to the battlefield, where X is the amount of {S} spent to cast this spell.
+        this.getSpellAbility().addEffect(new BloodOnTheSnowEffect());
+        mode.addEffect(new BloodOnTheSnowEffect());
+        this.getSpellAbility().addMode(mode);
+        this.getSpellAbility().appendToRule(
+                "Then return a creature or planeswalker card with converted mana cost X or less"
+                + " from your graveyard to the battlefield, where X is the amount of {S} spent to cast this spell."
+        );
+    }
+
+    private BloodOnTheSnow(final BloodOnTheSnow card) {
+        super(card);
+    }
+
+    @Override
+    public BloodOnTheSnow copy() {
+        return new BloodOnTheSnow(this);
+    }
+}
+
+class BloodOnTheSnowEffect extends OneShotEffect {
+
+    public BloodOnTheSnowEffect() {
+        super(Outcome.PutCardInPlay);
+    }
+
+    private BloodOnTheSnowEffect(final BloodOnTheSnowEffect effect) {
+        super(effect);
+    }
+
+    @Override
+    public BloodOnTheSnowEffect copy() {
+        return new BloodOnTheSnowEffect(this);
+    }
+
+    @Override
+    public boolean apply(Game game, Ability source) {
+        Player controller = game.getPlayer(source.getControllerId());
+        if (controller != null) {
+            int snow = source.getManaCostsToPay().getUsedManaToPay().getSnow();
+            FilterCard filter = new FilterCard("a creature or planeswalker card with CMC " + snow + " or less from your graveyard");
+            filter.add(Predicates.or(CardType.CREATURE.getPredicate(), CardType.PLANESWALKER.getPredicate()));
+            filter.add(new ConvertedManaCostPredicate(ComparisonType.FEWER_THAN, snow + 1));
+            TargetCardInYourGraveyard target = new TargetCardInYourGraveyard(1, 1, filter, true);
+            controller.chooseTarget(outcome, target, source, game);
+            Card card = game.getCard(target.getFirstTarget());
+            if (card != null) {
+                controller.moveCards(card, Zone.BATTLEFIELD, source, game);
+                return true;
+            }
+        }
+        return false;
+    }
+}

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

@@ -106,6 +106,7 @@ public final class Kaldheim extends ExpansionSet {
         cards.add(new SetCardInfo("Blessing of Frost", 161, Rarity.RARE, mage.cards.b.BlessingOfFrost.class));
         cards.add(new SetCardInfo("Blightstep Pathway", 252, Rarity.RARE, mage.cards.b.BlightstepPathway.class));
         cards.add(new SetCardInfo("Blizzard Brawl", 162, Rarity.UNCOMMON, mage.cards.b.BlizzardBrawl.class));
+        cards.add(new SetCardInfo("Blood on the Snow", 79, Rarity.RARE, mage.cards.b.BloodOnTheSnow.class));
         cards.add(new SetCardInfo("Bloodline Pretender", 235, Rarity.UNCOMMON, mage.cards.b.BloodlinePretender.class));
         cards.add(new SetCardInfo("Bloodsky Berserker", 80, Rarity.UNCOMMON, mage.cards.b.BloodskyBerserker.class));
         cards.add(new SetCardInfo("Boreal Outrider", 163, Rarity.UNCOMMON, mage.cards.b.BorealOutrider.class));

Mage/src/main/java/mage/abilities/AbilityImpl.java

@@ -72,6 +72,7 @@ public abstract class AbilityImpl implements Ability {
     protected List<Hint> hints = new ArrayList<>();
     protected Outcome customOutcome = null; // uses for AI decisions instead effects
     protected MageIdentifier identifier; // used to identify specific ability (e.g. to match with corresponding watcher)
+    protected String appendToRule = null;
 
     public AbilityImpl(AbilityType abilityType, Zone zone) {
         this.id = UUID.randomUUID();
@@ -742,6 +743,10 @@ public abstract class AbilityImpl implements Ability {
         return usesStack;
     }
 
+    public void appendToRule(String appendToRule) {
+        this.appendToRule = appendToRule;
+    }
+
     @Override
     public String getRule() {
         return getRule(false);
@@ -785,6 +790,9 @@ public abstract class AbilityImpl implements Ability {
         if (abilityWord != null) {
             rule = "<i>" + abilityWord + "</i> &mdash; " + Character.toUpperCase(rule.charAt(0)) + rule.substring(1);
         }
+        if (appendToRule != null) {
+            rule = rule.concat(appendToRule);
+        }
         return rule;
     }