implement [PIP] Young Deathclaws

Mage/src/main/java/mage/abilities/effects/common/GiveScavengeContinuousEffect.java

@@ -0,0 +1,67 @@
+package mage.abilities.effects.common;
+
+import mage.abilities.Ability;
+import mage.abilities.costs.mana.ManaCostsImpl;
+import mage.abilities.effects.ContinuousEffectImpl;
+import mage.abilities.keyword.ScavengeAbility;
+import mage.cards.Card;
+import mage.constants.Duration;
+import mage.constants.Layer;
+import mage.constants.Outcome;
+import mage.constants.SubLayer;
+import mage.filter.FilterCard;
+import mage.game.Game;
+import mage.players.Player;
+
+import java.util.UUID;
+
+/**
+ * Give Scavenge to all cards matching the filter in your graveyard.
+ * The scavenge cost is the card's manacost.
+ *
+ * @author Susucr
+ */
+public class GiveScavengeContinuousEffect extends ContinuousEffectImpl {
+
+    private final FilterCard filter;
+
+    public GiveScavengeContinuousEffect(Duration duration, FilterCard filter) {
+        super(duration, Layer.AbilityAddingRemovingEffects_6, SubLayer.NA, Outcome.AddAbility);
+        staticText = "Each " + filter.getMessage() + " in your graveyard has scavenge. The scavenge cost is equal to its mana cost";
+        this.filter = filter;
+    }
+
+    private GiveScavengeContinuousEffect(final GiveScavengeContinuousEffect effect) {
+        super(effect);
+        this.filter = effect.filter;
+    }
+
+
+    @Override
+    public GiveScavengeContinuousEffect copy() {
+        return new GiveScavengeContinuousEffect(this);
+    }
+
+    @Override
+    public boolean apply(Game game, Ability source) {
+        Player controller = game.getPlayer(source.getControllerId());
+        if (controller == null) {
+            discard();
+            return false;
+        }
+        for (UUID cardId : controller.getGraveyard()) {
+            Card card = game.getCard(cardId);
+            if (!filter.match(card, source.getControllerId(), source, game)) {
+                continue;
+            }
+            if (card.getManaCost().getText().isEmpty()) { // Checks that the card has a mana cost.
+                continue;
+            }
+            ScavengeAbility ability = new ScavengeAbility(new ManaCostsImpl<>(card.getManaCost().getText()));
+            ability.setSourceId(cardId);
+            ability.setControllerId(card.getOwnerId());
+            game.getState().addOtherAbility(card, ability);
+        }
+        return true;
+    }
+}