Implemented Loxodon Lifechanter

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

@@ -0,0 +1,107 @@
+package mage.cards.l;
+
+import mage.MageInt;
+import mage.abilities.Ability;
+import mage.abilities.common.EntersBattlefieldTriggeredAbility;
+import mage.abilities.common.SimpleActivatedAbility;
+import mage.abilities.costs.mana.ManaCostsImpl;
+import mage.abilities.dynamicvalue.DynamicValue;
+import mage.abilities.effects.Effect;
+import mage.abilities.effects.common.SetPlayerLifeSourceEffect;
+import mage.abilities.effects.common.continuous.BoostSourceEffect;
+import mage.cards.CardImpl;
+import mage.cards.CardSetInfo;
+import mage.constants.CardType;
+import mage.constants.Duration;
+import mage.constants.SubType;
+import mage.filter.StaticFilters;
+import mage.game.Game;
+import mage.players.Player;
+
+import java.util.UUID;
+
+/**
+ * @author TheElk801
+ */
+public final class LoxodonLifechanter extends CardImpl {
+
+    public LoxodonLifechanter(UUID ownerId, CardSetInfo setInfo) {
+        super(ownerId, setInfo, new CardType[]{CardType.CREATURE}, "{5}{W}");
+
+        this.subtype.add(SubType.ELEPHANT);
+        this.subtype.add(SubType.CLERIC);
+        this.power = new MageInt(4);
+        this.toughness = new MageInt(6);
+
+        // When Loxodon Lifechanter enters the battlefield, you may have your life total become the total toughness of creatures you control.
+        this.addAbility(new EntersBattlefieldTriggeredAbility(new SetPlayerLifeSourceEffect(
+                LoxodonLifechanterValue.instance
+        ).setText("have your life total become the total toughness of creatures you control"), true));
+
+        // {5}{W}: Loxodon Lifechanter gets +X/+X until end of turn, where X is your life total.
+        this.addAbility(new SimpleActivatedAbility(new BoostSourceEffect(
+                LoxodonLifechanterValue2.instance,
+                LoxodonLifechanterValue2.instance,
+                Duration.EndOfTurn, true
+        ), new ManaCostsImpl("{5}{W}")));
+    }
+
+    private LoxodonLifechanter(final LoxodonLifechanter card) {
+        super(card);
+    }
+
+    @Override
+    public LoxodonLifechanter copy() {
+        return new LoxodonLifechanter(this);
+    }
+}
+
+enum LoxodonLifechanterValue implements DynamicValue {
+    instance;
+
+    @Override
+    public int calculate(Game game, Ability sourceAbility, Effect effect) {
+        return game.getBattlefield().getAllActivePermanents(
+                StaticFilters.FILTER_PERMANENT_CREATURE,
+                sourceAbility.getControllerId(), game
+        ).stream().mapToInt(permanent -> (permanent.getToughness().getValue())).sum();
+    }
+
+    @Override
+    public DynamicValue copy() {
+        return instance;
+    }
+
+    @Override
+    public String getMessage() {
+        return null;
+    }
+}
+
+enum LoxodonLifechanterValue2 implements DynamicValue {
+    instance;
+
+    @Override
+    public int calculate(Game game, Ability sourceAbility, Effect effect) {
+        Player player = game.getPlayer(sourceAbility.getControllerId());
+        if (player == null) {
+            return 0;
+        }
+        return player.getLife();
+    }
+
+    @Override
+    public DynamicValue copy() {
+        return instance;
+    }
+
+    @Override
+    public String getMessage() {
+        return "your life total";
+    }
+
+    @Override
+    public String toString() {
+        return "X";
+    }
+}

Mage.Sets/src/mage/sets/CoreSet2020.java

@@ -69,6 +69,7 @@ public final class CoreSet2020 extends ExpansionSet {
         cards.add(new SetCardInfo("Leyline of Sanctity", 26, Rarity.RARE, mage.cards.l.LeylineOfSanctity.class));
         cards.add(new SetCardInfo("Leyline of the Void", 107, Rarity.RARE, mage.cards.l.LeylineOfTheVoid.class));
         cards.add(new SetCardInfo("Loaming Shaman", 180, Rarity.UNCOMMON, mage.cards.l.LoamingShaman.class));
+        cards.add(new SetCardInfo("Loxodon Lifechanter", 27, Rarity.RARE, mage.cards.l.LoxodonLifechanter.class));
         cards.add(new SetCardInfo("Loyal Pegasus", 28, Rarity.UNCOMMON, mage.cards.l.LoyalPegasus.class));
         cards.add(new SetCardInfo("Moldervine Reclamation", 214, Rarity.UNCOMMON, mage.cards.m.MoldervineReclamation.class));
         cards.add(new SetCardInfo("Negate", 69, Rarity.COMMON, mage.cards.n.Negate.class));