[KHM] Implemented Skemfar Shadowsage

Mage.Sets/src/mage/cards/l/LittjaraKinseekers.java

@@ -1,11 +1,11 @@
 package mage.cards.l;
 
 import mage.MageInt;
-import mage.MageObject;
 import mage.abilities.Ability;
 import mage.abilities.common.EntersBattlefieldTriggeredAbility;
 import mage.abilities.condition.Condition;
 import mage.abilities.decorator.ConditionalInterveningIfTriggeredAbility;
+import mage.abilities.dynamicvalue.common.GreatestSharedCreatureTypeCount;
 import mage.abilities.effects.common.counter.AddCountersSourceEffect;
 import mage.abilities.effects.keyword.ScryEffect;
 import mage.abilities.keyword.ChangelingAbility;
@@ -14,11 +14,9 @@ import mage.cards.CardSetInfo;
 import mage.constants.CardType;
 import mage.constants.SubType;
 import mage.counters.CounterType;
-import mage.filter.StaticFilters;
 import mage.game.Game;
-import mage.game.permanent.Permanent;
 
-import java.util.*;
+import java.util.UUID;
 
 /**
  * @author TheElk801
@@ -45,7 +43,7 @@ public final class LittjaraKinseekers extends CardImpl {
                 "put a +1/+1 counter on {this}, then scry 1."
         );
         ability.addEffect(new ScryEffect(1));
-        this.addAbility(ability);
+        this.addAbility(ability.addHint(GreatestSharedCreatureTypeCount.getHint()));
     }
 
     private LittjaraKinseekers(final LittjaraKinseekers card) {
@@ -63,26 +61,6 @@ enum LittjaraKinseekersCondition implements Condition {
 
     @Override
     public boolean apply(Game game, Ability source) {
-        List<Permanent> permanentList = game.getBattlefield().getActivePermanents(
+        return GreatestSharedCreatureTypeCount.instance.calculate(game, source, null) >= 3;
-                StaticFilters.FILTER_CONTROLLED_CREATURE,
-                source.getControllerId(), source.getSourceId(), game
-        );
-        permanentList.removeIf(Objects::isNull);
-        long changelings = permanentList
-                .stream()
-                .filter(Objects::nonNull)
-                .filter(MageObject::isAllCreatureTypes)
-                .count();
-        if (changelings > 2) {
-            return true;
-        }
-        permanentList.removeIf(MageObject::isAllCreatureTypes);
-        Map<SubType, Integer> typeMap = new HashMap<>();
-        return permanentList
-                .stream()
-                .map(permanent -> permanent.getSubtype(game))
-                .flatMap(Collection::stream)
-                .mapToInt(subType -> typeMap.compute(subType, (s, i) -> i == null ? 1 : Integer.sum(i, 1)))
-                .anyMatch(x -> x + changelings > 2);
     }
 }

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

@@ -0,0 +1,54 @@
+package mage.cards.s;
+
+import mage.MageInt;
+import mage.abilities.Ability;
+import mage.abilities.Mode;
+import mage.abilities.common.EntersBattlefieldTriggeredAbility;
+import mage.abilities.dynamicvalue.common.GreatestSharedCreatureTypeCount;
+import mage.abilities.effects.common.GainLifeEffect;
+import mage.abilities.effects.common.LoseLifeOpponentsEffect;
+import mage.cards.CardImpl;
+import mage.cards.CardSetInfo;
+import mage.constants.CardType;
+import mage.constants.SubType;
+
+import java.util.UUID;
+
+/**
+ * @author TheElk801
+ */
+public final class SkemfarShadowsage extends CardImpl {
+
+    public SkemfarShadowsage(UUID ownerId, CardSetInfo setInfo) {
+        super(ownerId, setInfo, new CardType[]{CardType.CREATURE}, "{3}{B}");
+
+        this.subtype.add(SubType.ELF);
+        this.subtype.add(SubType.CLERIC);
+        this.power = new MageInt(2);
+        this.toughness = new MageInt(5);
+
+        // When Skemfar Shadowsage enters the battlefield, choose one —
+        // • Each opponent loses X life, where X is the greatest number of creatures you control that have a creature type in common.
+        Ability ability = new EntersBattlefieldTriggeredAbility(new LoseLifeOpponentsEffect(
+                GreatestSharedCreatureTypeCount.instance
+        ).setText("each opponent loses X life, where X is the greatest number " +
+                "of creatures you control that have a creature type in common"));
+
+        // • You gain X life, where X is the greatest number of creatures you control that have a creature type in common.
+        ability.addMode(new Mode(new GainLifeEffect(
+                GreatestSharedCreatureTypeCount.instance
+        ).setText("you gain X life, where X is the greatest number " +
+                "of creatures you control that have a creature type in common")));
+
+        this.addAbility(ability.addHint(GreatestSharedCreatureTypeCount.getHint()));
+    }
+
+    private SkemfarShadowsage(final SkemfarShadowsage card) {
+        super(card);
+    }
+
+    @Override
+    public SkemfarShadowsage copy() {
+        return new SkemfarShadowsage(this);
+    }
+}

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

@@ -133,6 +133,7 @@ public final class Kaldheim extends ExpansionSet {
         cards.add(new SetCardInfo("Seize the Spoils", 149, Rarity.COMMON, mage.cards.s.SeizeTheSpoils.class));
         cards.add(new SetCardInfo("Showdown of the Skalds", 229, Rarity.RARE, mage.cards.s.ShowdownOfTheSkalds.class));
         cards.add(new SetCardInfo("Sigrid, God-Favored", 29, Rarity.RARE, mage.cards.s.SigridGodFavored.class));
+        cards.add(new SetCardInfo("Skemfar Shadowsage", 110, Rarity.UNCOMMON, mage.cards.s.SkemfarShadowsage.class));
         cards.add(new SetCardInfo("Snakeskin Veil", 194, Rarity.COMMON, mage.cards.s.SnakeskinVeil.class));
         cards.add(new SetCardInfo("Snow-Covered Forest", 284, Rarity.LAND, mage.cards.s.SnowCoveredForest.class));
         cards.add(new SetCardInfo("Snow-Covered Island", 278, Rarity.LAND, mage.cards.s.SnowCoveredIsland.class));

Mage/src/main/java/mage/abilities/dynamicvalue/common/GreatestSharedCreatureTypeCount.java

@@ -0,0 +1,75 @@
+package mage.abilities.dynamicvalue.common;
+
+import mage.MageObject;
+import mage.abilities.Ability;
+import mage.abilities.dynamicvalue.DynamicValue;
+import mage.abilities.effects.Effect;
+import mage.abilities.hint.Hint;
+import mage.abilities.hint.ValueHint;
+import mage.constants.SubType;
+import mage.constants.SubTypeSet;
+import mage.filter.StaticFilters;
+import mage.game.Game;
+import mage.game.permanent.Permanent;
+
+import java.util.*;
+
+/**
+ * @author TheElk801
+ */
+public enum GreatestSharedCreatureTypeCount implements DynamicValue {
+    instance;
+
+    private static final Hint hint = new ValueHint(
+            "Greatest number of creatures you control that share a creature type", instance
+    );
+
+    @Override
+    public int calculate(Game game, Ability sourceAbility, Effect effect) {
+        List<Permanent> permanentList = game.getBattlefield().getActivePermanents(
+                StaticFilters.FILTER_CONTROLLED_CREATURE,
+                sourceAbility.getControllerId(), sourceAbility.getSourceId(), game
+        );
+        permanentList.removeIf(Objects::isNull);
+        int changelings = permanentList
+                .stream()
+                .filter(Objects::nonNull)
+                .filter(MageObject::isAllCreatureTypes)
+                .mapToInt(x -> 1)
+                .sum();
+        permanentList.removeIf(MageObject::isAllCreatureTypes);
+        Map<SubType, Integer> typeMap = new HashMap<>();
+        permanentList
+                .stream()
+                .map(permanent -> permanent.getSubtype(game))
+                .flatMap(Collection::stream)
+                .filter(subType -> subType.getSubTypeSet() == SubTypeSet.CreatureType)
+                .forEach(subType -> typeMap.compute(subType, (s, i) -> i == null ? 1 : Integer.sum(i, 1)));
+        return changelings
+                + typeMap
+                .values()
+                .stream()
+                .mapToInt(x -> x)
+                .max()
+                .getAsInt();
+    }
+
+    @Override
+    public GreatestSharedCreatureTypeCount copy() {
+        return instance;
+    }
+
+    @Override
+    public String toString() {
+        return "X";
+    }
+
+    @Override
+    public String getMessage() {
+        return "greatest number of creatures you control that have a creature type in common";
+    }
+
+    public static Hint getHint() {
+        return hint;
+    }
+}