Implemented Gate Colossus

Mage.Sets/src/mage/cards/g/GateColossus.java

@@ -0,0 +1,101 @@
+package mage.cards.g;
+
+import mage.MageInt;
+import mage.abilities.Ability;
+import mage.abilities.common.EntersBattlefieldAllTriggeredAbility;
+import mage.abilities.common.SimpleEvasionAbility;
+import mage.abilities.common.SimpleStaticAbility;
+import mage.abilities.effects.common.PutOnLibrarySourceEffect;
+import mage.abilities.effects.common.combat.CantBeBlockedByCreaturesSourceEffect;
+import mage.abilities.effects.common.cost.CostModificationEffectImpl;
+import mage.cards.CardImpl;
+import mage.cards.CardSetInfo;
+import mage.constants.*;
+import mage.filter.common.FilterControlledPermanent;
+import mage.filter.common.FilterCreaturePermanent;
+import mage.filter.predicate.mageobject.PowerPredicate;
+import mage.filter.predicate.mageobject.SubtypePredicate;
+import mage.game.Game;
+import mage.util.CardUtil;
+
+import java.util.UUID;
+
+/**
+ * @author TheElk801
+ */
+public final class GateColossus extends CardImpl {
+
+    private static final FilterCreaturePermanent filter = new FilterCreaturePermanent("creatures with power 2 or less");
+
+    static {
+        filter.add(new PowerPredicate(ComparisonType.FEWER_THAN, 3));
+    }
+
+    public GateColossus(UUID ownerId, CardSetInfo setInfo) {
+        super(ownerId, setInfo, new CardType[]{CardType.ARTIFACT, CardType.CREATURE}, "{8}");
+
+        this.subtype.add(SubType.CONSTRUCT);
+        this.power = new MageInt(8);
+        this.toughness = new MageInt(8);
+
+        // This spell costs {1} less to cast for each Gate you control.
+        this.addAbility(new SimpleStaticAbility(Zone.STACK, new GateColossusCostReductionEffect()));
+
+        // Gate Colossus can't be blocked by creatures with power 2 or less.
+        this.addAbility(new SimpleEvasionAbility(new CantBeBlockedByCreaturesSourceEffect(filter, Duration.WhileOnBattlefield)));
+
+        // Whenever a Gate enters the battlefield under your control, you may put Gate Colossus from your graveyard on top of your library.
+        this.addAbility(new EntersBattlefieldAllTriggeredAbility(
+                Zone.GRAVEYARD,
+                new PutOnLibrarySourceEffect(
+                        true, "put {this} from your graveyard on top of your library"
+                ), GateColossusCostReductionEffect.filter, true
+        ));
+    }
+
+    public GateColossus(final GateColossus card) {
+        super(card);
+    }
+
+    @Override
+    public GateColossus copy() {
+        return new GateColossus(this);
+    }
+}
+
+class GateColossusCostReductionEffect extends CostModificationEffectImpl {
+
+    static final FilterControlledPermanent filter = new FilterControlledPermanent();
+
+    static {
+        filter.add(new SubtypePredicate(SubType.GATE));
+    }
+
+    public GateColossusCostReductionEffect() {
+        super(Duration.WhileOnStack, Outcome.Benefit, CostModificationType.REDUCE_COST);
+        staticText = "This spell costs {1} less to cast for each Gate you control";
+    }
+
+    protected GateColossusCostReductionEffect(final GateColossusCostReductionEffect effect) {
+        super(effect);
+    }
+
+    @Override
+    public boolean apply(Game game, Ability source, Ability abilityToModify) {
+        int count = game.getBattlefield().getAllActivePermanents(filter, source.getControllerId(), game).size();
+        if (count > 0) {
+            CardUtil.reduceCost(abilityToModify, count);
+        }
+        return true;
+    }
+
+    @Override
+    public boolean applies(Ability abilityToModify, Ability source, Game game) {
+        return abilityToModify.getSourceId().equals(source.getSourceId());
+    }
+
+    @Override
+    public GateColossusCostReductionEffect copy() {
+        return new GateColossusCostReductionEffect(this);
+    }
+}

Mage.Sets/src/mage/cards/g/GearseekerSerpent.java

@@ -58,7 +58,7 @@ class GearseekerSerpentCostReductionEffect extends CostModificationEffectImpl {
 
     public GearseekerSerpentCostReductionEffect() {
         super(Duration.WhileOnStack, Outcome.Benefit, CostModificationType.REDUCE_COST);
-        staticText = "{this} costs {1} less to cast for each artifact you control";
+        staticText = "This spell costs {1} less to cast for each artifact you control";
     }
 
     protected GearseekerSerpentCostReductionEffect(final GearseekerSerpentCostReductionEffect effect) {

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

@@ -32,6 +32,7 @@ public final class RavnicaAllegiance extends ExpansionSet {
         this.ratioBoosterMythic = 8;
         this.maxCardNumberInBooster = 259;
 
+        cards.add(new SetCardInfo("Gate Colossus", 232, Rarity.UNCOMMON, mage.cards.g.GateColossus.class));
         cards.add(new SetCardInfo("Growth Spiral", 178, Rarity.COMMON, mage.cards.g.GrowthSpiral.class));
         cards.add(new SetCardInfo("Imperious Oligarch", 184, Rarity.COMMON, mage.cards.i.ImperiousOligarch.class));
         cards.add(new SetCardInfo("Mortify", 192, Rarity.UNCOMMON, mage.cards.m.Mortify.class));