Implemented Eidolon of Obstruction

Mage.Sets/src/mage/cards/e/EidolonOfObstruction.java

@@ -0,0 +1,81 @@
+package mage.cards.e;
+
+import mage.MageInt;
+import mage.abilities.Ability;
+import mage.abilities.LoyaltyAbility;
+import mage.abilities.common.SimpleStaticAbility;
+import mage.abilities.effects.common.cost.CostModificationEffectImpl;
+import mage.abilities.keyword.FirstStrikeAbility;
+import mage.cards.CardImpl;
+import mage.cards.CardSetInfo;
+import mage.constants.*;
+import mage.game.Game;
+import mage.game.permanent.Permanent;
+import mage.util.CardUtil;
+
+import java.util.UUID;
+
+/**
+ * @author TheElk801
+ */
+public final class EidolonOfObstruction extends CardImpl {
+
+    public EidolonOfObstruction(UUID ownerId, CardSetInfo setInfo) {
+        super(ownerId, setInfo, new CardType[]{CardType.ENCHANTMENT, CardType.CREATURE}, "{1}{W}");
+
+        this.subtype.add(SubType.SPIRIT);
+        this.power = new MageInt(2);
+        this.toughness = new MageInt(1);
+
+        // First strike
+        this.addAbility(FirstStrikeAbility.getInstance());
+
+        // Loyalty abilities of planeswalkers your opponents control cost {1} more to activate.
+        this.addAbility(new SimpleStaticAbility(new EidolonOfObstructionEffect()));
+    }
+
+    private EidolonOfObstruction(final EidolonOfObstruction card) {
+        super(card);
+    }
+
+    @Override
+    public EidolonOfObstruction copy() {
+        return new EidolonOfObstruction(this);
+    }
+}
+
+class EidolonOfObstructionEffect extends CostModificationEffectImpl {
+
+    EidolonOfObstructionEffect() {
+        super(Duration.WhileOnBattlefield, Outcome.Benefit, CostModificationType.INCREASE_COST);
+        staticText = "Loyalty abilities of planeswalkers your opponents control cost {1} more to activate";
+    }
+
+    private EidolonOfObstructionEffect(EidolonOfObstructionEffect effect) {
+        super(effect);
+    }
+
+    @Override
+    public boolean apply(Game game, Ability source, Ability abilityToModify) {
+        CardUtil.increaseCost(abilityToModify, 1);
+        return true;
+    }
+
+    @Override
+    public boolean applies(Ability abilityToModify, Ability source, Game game) {
+        if (!(abilityToModify instanceof LoyaltyAbility)) {
+            return false;
+        }
+        Permanent permanent = game.getPermanent(abilityToModify.getSourceId());
+        if (permanent == null) {
+            return false;
+        }
+        return permanent.isPlaneswalker()
+                && game.getOpponents(source.getControllerId()).contains(abilityToModify.getControllerId());
+    }
+
+    @Override
+    public EidolonOfObstructionEffect copy() {
+        return new EidolonOfObstructionEffect(this);
+    }
+}

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

@@ -56,6 +56,7 @@ public final class TherosBeyondDeath extends ExpansionSet {
         cards.add(new SetCardInfo("Drag to the Underworld", 89, Rarity.UNCOMMON, mage.cards.d.DragToTheUnderworld.class));
         cards.add(new SetCardInfo("Dryad of Ilysian Grove", 169, Rarity.RARE, mage.cards.d.DryadOfIlysianGrove.class));
         cards.add(new SetCardInfo("Eat to Extinction", 90, Rarity.RARE, mage.cards.e.EatToExtinction.class));
+        cards.add(new SetCardInfo("Eidolon of Obstruction", 12, Rarity.RARE, mage.cards.e.EidolonOfObstruction.class));
         cards.add(new SetCardInfo("Eidolon of Philosophy", 48, Rarity.COMMON, mage.cards.e.EidolonOfPhilosophy.class));
         cards.add(new SetCardInfo("Elspeth, Sun's Nemesis", 14, Rarity.MYTHIC, mage.cards.e.ElspethSunsNemesis.class));
         cards.add(new SetCardInfo("Elspeth, Undaunted Hero", 270, Rarity.MYTHIC, mage.cards.e.ElspethUndauntedHero.class));