[KHM] Implemented Open the Omenpaths

Mage.Sets/src/mage/cards/o/OpenTheOmenpaths.java

@@ -0,0 +1,98 @@
+package mage.cards.o;
+
+import mage.ConditionalMana;
+import mage.MageObject;
+import mage.Mana;
+import mage.abilities.Ability;
+import mage.abilities.Mode;
+import mage.abilities.SpellAbility;
+import mage.abilities.condition.Condition;
+import mage.abilities.costs.Cost;
+import mage.abilities.effects.OneShotEffect;
+import mage.abilities.effects.common.continuous.BoostControlledEffect;
+import mage.abilities.mana.conditional.ManaCondition;
+import mage.cards.CardImpl;
+import mage.cards.CardSetInfo;
+import mage.choices.ManaChoice;
+import mage.constants.CardType;
+import mage.constants.Duration;
+import mage.constants.Outcome;
+import mage.game.Game;
+import mage.players.Player;
+
+import java.util.UUID;
+
+/**
+ * @author TheElk801
+ */
+public final class OpenTheOmenpaths extends CardImpl {
+
+    public OpenTheOmenpaths(UUID ownerId, CardSetInfo setInfo) {
+        super(ownerId, setInfo, new CardType[]{CardType.INSTANT}, "{2}{R}");
+
+        // Choose one —
+        // • Add two mana of any one color and two mana of any other color. Spend this mana only to cast creature or enchantment spells.
+        this.getSpellAbility().addEffect(new OpenTheOmenpathsEffect());
+
+        // • Creatures you control get +1/+0 until end of turn.
+        this.getSpellAbility().addMode(new Mode(new BoostControlledEffect(1, 0, Duration.EndOfTurn)));
+    }
+
+    private OpenTheOmenpaths(final OpenTheOmenpaths card) {
+        super(card);
+    }
+
+    @Override
+    public OpenTheOmenpaths copy() {
+        return new OpenTheOmenpaths(this);
+    }
+}
+
+class OpenTheOmenpathsEffect extends OneShotEffect {
+
+    OpenTheOmenpathsEffect() {
+        super(Outcome.Benefit);
+        staticText = "add two mana of any one color and two mana of any other color. " +
+                "Spend this mana only to cast creature or enchantment spells";
+    }
+
+    private OpenTheOmenpathsEffect(final OpenTheOmenpathsEffect effect) {
+        super(effect);
+    }
+
+    @Override
+    public OpenTheOmenpathsEffect copy() {
+        return new OpenTheOmenpathsEffect(this);
+    }
+
+    @Override
+    public boolean apply(Game game, Ability source) {
+        Player player = game.getPlayer(source.getControllerId());
+        if (player == null) {
+            return false;
+        }
+        Mana mana = ManaChoice.chooseTwoDifferentColors(player, game);
+        mana.add(mana);
+        ConditionalMana conditionalMana = new ConditionalMana(mana);
+        conditionalMana.addCondition(new OpenTheOmenpathsCondition());
+        player.getManaPool().addMana(conditionalMana, game, source);
+        return true;
+    }
+}
+
+class OpenTheOmenpathsCondition extends ManaCondition implements Condition {
+
+    @Override
+    public boolean apply(Game game, Ability source) {
+        if (!(source instanceof SpellAbility)) {
+            return false;
+        }
+        MageObject object = game.getObject(source.getSourceId());
+        return object != null && (object.isCreature() || object.isEnchantment());
+    }
+
+    @Override
+    public boolean apply(Game game, Ability source, UUID originalId, Cost costToPay) {
+        return apply(game, source);
+    }
+}

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

@@ -239,6 +239,7 @@ public final class Kaldheim extends ExpansionSet {
         cards.add(new SetCardInfo("Narfi, Betrayer King", 224, Rarity.UNCOMMON, mage.cards.n.NarfiBetrayerKing.class));
         cards.add(new SetCardInfo("Niko Aris", 225, Rarity.MYTHIC, mage.cards.n.NikoAris.class));
         cards.add(new SetCardInfo("Old-Growth Troll", 185, Rarity.RARE, mage.cards.o.OldGrowthTroll.class));
+        cards.add(new SetCardInfo("Open the Omenpaths", 143, Rarity.COMMON, mage.cards.o.OpenTheOmenpaths.class));
         cards.add(new SetCardInfo("Orvar, the All-Form", 70, Rarity.MYTHIC, mage.cards.o.OrvarTheAllForm.class));
         cards.add(new SetCardInfo("Path to the World Tree", 186, Rarity.UNCOMMON, mage.cards.p.PathToTheWorldTree.class));
         cards.add(new SetCardInfo("Pilfering Hawk", 71, Rarity.COMMON, mage.cards.p.PilferingHawk.class));