[KHM] Implemented Orvar, the All-Form

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

@@ -36,7 +36,7 @@ public final class BorealOutrider extends CardImpl {
         // Whenever you cast a creature spell, if {S} of any of that spell's color was spent to cast it, that creature enters the battlefield with an additional +1/+1 counter on it.
         this.addAbility(new ConditionalInterveningIfTriggeredAbility(
                 new SpellCastControllerTriggeredAbility(
-                        new BorealOutriderEffect(), StaticFilters.FILTER_SPELL_A_CREATURE, false
+                        new BorealOutriderEffect(), StaticFilters.FILTER_SPELL_A_CREATURE, false, true
                 ), BorealOutriderCondition.instance, "Whenever you cast a creature spell, " +
                 "if {S} of any of that spell's color was spent to cast it, that creature " +
                 "enters the battlefield with an additional +1/+1 counter on it."

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

@@ -0,0 +1,156 @@
+package mage.cards.o;
+
+import mage.MageInt;
+import mage.abilities.Ability;
+import mage.abilities.Mode;
+import mage.abilities.common.DiscardedByOpponentTriggeredAbility;
+import mage.abilities.common.SpellCastControllerTriggeredAbility;
+import mage.abilities.condition.Condition;
+import mage.abilities.decorator.ConditionalInterveningIfTriggeredAbility;
+import mage.abilities.effects.OneShotEffect;
+import mage.abilities.effects.common.CreateTokenCopyTargetEffect;
+import mage.abilities.keyword.ChangelingAbility;
+import mage.cards.CardImpl;
+import mage.cards.CardSetInfo;
+import mage.constants.CardType;
+import mage.constants.Outcome;
+import mage.constants.SubType;
+import mage.constants.SuperType;
+import mage.filter.FilterPermanent;
+import mage.filter.StaticFilters;
+import mage.filter.predicate.Predicate;
+import mage.filter.predicate.Predicates;
+import mage.filter.predicate.permanent.PermanentIdPredicate;
+import mage.game.Controllable;
+import mage.game.Game;
+import mage.game.permanent.Permanent;
+import mage.game.stack.Spell;
+import mage.players.Player;
+import mage.target.Target;
+import mage.target.TargetPermanent;
+import mage.target.targetpointer.FixedTarget;
+
+import java.util.Collection;
+import java.util.List;
+import java.util.Objects;
+import java.util.UUID;
+import java.util.stream.Collectors;
+
+/**
+ * @author TheElk801
+ */
+public final class OrvarTheAllForm extends CardImpl {
+
+    public OrvarTheAllForm(UUID ownerId, CardSetInfo setInfo) {
+        super(ownerId, setInfo, new CardType[]{CardType.CREATURE}, "{3}{U}");
+
+        this.addSuperType(SuperType.LEGENDARY);
+        this.subtype.add(SubType.SHAPESHIFTER);
+        this.power = new MageInt(3);
+        this.toughness = new MageInt(3);
+
+        // Changeling
+        this.setIsAllCreatureTypes(true);
+        this.addAbility(ChangelingAbility.getInstance());
+
+        // Whenever you cast an instant or sorcery spell, if it targets one or more other permanents you control, create a token that's a copy of one of those permanents.
+        this.addAbility(new ConditionalInterveningIfTriggeredAbility(
+                new SpellCastControllerTriggeredAbility(
+                        new OrvarTheAllFormEffect(),
+                        StaticFilters.FILTER_SPELL_INSTANT_OR_SORCERY,
+                        false, true
+                ), OrvarTheAllFormCondition.instance, "Whenever you cast an instant or sorcery spell, " +
+                "if it targets one or more other permanents you control, " +
+                "create a token that's a copy of one of those permanents."
+        ));
+
+        // When a spell or ability an opponent controls causes you to discard this card, create a token that's a copy of target permanent.
+        Ability ability = new DiscardedByOpponentTriggeredAbility(new CreateTokenCopyTargetEffect());
+        ability.addTarget(new TargetPermanent());
+        this.addAbility(ability);
+    }
+
+    private OrvarTheAllForm(final OrvarTheAllForm card) {
+        super(card);
+    }
+
+    @Override
+    public OrvarTheAllForm copy() {
+        return new OrvarTheAllForm(this);
+    }
+}
+
+enum OrvarTheAllFormCondition implements Condition {
+    instance;
+
+    @Override
+    public boolean apply(Game game, Ability source) {
+        Spell spell = (Spell) source.getEffects().get(0).getValue("spellCast");
+        return spell != null && spell
+                .getSpellAbility()
+                .getModes()
+                .values()
+                .stream()
+                .map(Mode::getTargets)
+                .flatMap(Collection::stream)
+                .map(Target::getTargets)
+                .flatMap(Collection::stream)
+                .filter(uuid -> uuid != source.getSourceId())
+                .map(game::getPermanent)
+                .filter(Objects::nonNull)
+                .map(Controllable::getControllerId)
+                .anyMatch(source::isControlledBy);
+    }
+}
+
+class OrvarTheAllFormEffect extends OneShotEffect {
+
+    OrvarTheAllFormEffect() {
+        super(Outcome.Benefit);
+    }
+
+    private OrvarTheAllFormEffect(final OrvarTheAllFormEffect effect) {
+        super(effect);
+    }
+
+    @Override
+    public OrvarTheAllFormEffect copy() {
+        return new OrvarTheAllFormEffect(this);
+    }
+
+    @Override
+    public boolean apply(Game game, Ability source) {
+        Player player = game.getPlayer(source.getControllerId());
+        Spell spell = (Spell) this.getValue("spellCast");
+        if (spell == null) {
+            return false;
+        }
+        List<Predicate<Permanent>> predicates = spell
+                .getSpellAbility()
+                .getModes()
+                .values()
+                .stream()
+                .map(Mode::getTargets)
+                .flatMap(Collection::stream)
+                .map(Target::getTargets)
+                .flatMap(Collection::stream)
+                .filter(uuid -> uuid != source.getSourceId())
+                .map(game::getPermanent)
+                .filter(Objects::nonNull)
+                .map(Controllable::getControllerId)
+                .filter(source::isControlledBy)
+                .map(PermanentIdPredicate::new)
+                .collect(Collectors.toList());
+        if (predicates.isEmpty()) {
+            return false;
+        }
+        FilterPermanent filter = new FilterPermanent("a permanent targeted by this spell");
+        filter.add(Predicates.or(predicates));
+        TargetPermanent target = new TargetPermanent(filter);
+        target.setNotTarget(true);
+        player.choose(outcome, target, source.getSourceId(), game);
+        return new CreateTokenCopyTargetEffect()
+                .setTargetPointer(new FixedTarget(target.getFirstTarget(), game))
+                .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("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));
         cards.add(new SetCardInfo("Plains", 394, Rarity.LAND, mage.cards.basiclands.Plains.class, NON_FULL_USE_VARIOUS));