From 7dc8133eec6ae6f7794de693202179c2a3867b83 Mon Sep 17 00:00:00 2001
From: Evan Kranzler <theelk801@gmail.com>
Date: Fri, 26 Mar 2021 07:01:14 -0400
Subject: [PATCH] [STX] Implemented Waterfall Aerialist

---
 .../src/mage/cards/w/WaterfallAerialist.java  | 42 +++++++++++++++
 .../mage/sets/StrixhavenSchoolOfMages.java    |  1 +
 .../mage/abilities/keyword/WardAbility.java   | 54 +++++++++++++++++++
 Utils/keywords.txt                            |  1 +
 4 files changed, 98 insertions(+)
 create mode 100644 Mage.Sets/src/mage/cards/w/WaterfallAerialist.java
 create mode 100644 Mage/src/main/java/mage/abilities/keyword/WardAbility.java

diff --git a/Mage.Sets/src/mage/cards/w/WaterfallAerialist.java b/Mage.Sets/src/mage/cards/w/WaterfallAerialist.java
new file mode 100644
index 0000000000..75d092a7b1
--- /dev/null
+++ b/Mage.Sets/src/mage/cards/w/WaterfallAerialist.java
@@ -0,0 +1,42 @@
+package mage.cards.w;
+
+import mage.MageInt;
+import mage.abilities.costs.mana.ManaCostsImpl;
+import mage.abilities.keyword.FlyingAbility;
+import mage.abilities.keyword.WardAbility;
+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 WaterfallAerialist extends CardImpl {
+
+    public WaterfallAerialist(UUID ownerId, CardSetInfo setInfo) {
+        super(ownerId, setInfo, new CardType[]{CardType.CREATURE}, "{3}{U}");
+
+        this.subtype.add(SubType.DJINN);
+        this.subtype.add(SubType.WIZARD);
+        this.power = new MageInt(3);
+        this.toughness = new MageInt(1);
+
+        // Flying
+        this.addAbility(FlyingAbility.getInstance());
+
+        // Ward {2}
+        this.addAbility(new WardAbility(new ManaCostsImpl<>("{2}")));
+    }
+
+    private WaterfallAerialist(final WaterfallAerialist card) {
+        super(card);
+    }
+
+    @Override
+    public WaterfallAerialist copy() {
+        return new WaterfallAerialist(this);
+    }
+}
diff --git a/Mage.Sets/src/mage/sets/StrixhavenSchoolOfMages.java b/Mage.Sets/src/mage/sets/StrixhavenSchoolOfMages.java
index 734dbfdd49..35f7a9317d 100644
--- a/Mage.Sets/src/mage/sets/StrixhavenSchoolOfMages.java
+++ b/Mage.Sets/src/mage/sets/StrixhavenSchoolOfMages.java
@@ -46,6 +46,7 @@ public final class StrixhavenSchoolOfMages extends ExpansionSet {
         cards.add(new SetCardInfo("Silverquill Command", 232, Rarity.RARE, mage.cards.s.SilverquillCommand.class));
         cards.add(new SetCardInfo("Storm-Kiln Artist", 115, Rarity.UNCOMMON, mage.cards.s.StormKilnArtist.class));
         cards.add(new SetCardInfo("Vineglimmer Snarl", 274, Rarity.RARE, mage.cards.v.VineglimmerSnarl.class));
+        cards.add(new SetCardInfo("Waterfall Aerialist", 61, Rarity.COMMON, mage.cards.w.WaterfallAerialist.class));
         cards.add(new SetCardInfo("Witherbloom Command", 248, Rarity.RARE, mage.cards.w.WitherbloomCommand.class));
     }
 }
diff --git a/Mage/src/main/java/mage/abilities/keyword/WardAbility.java b/Mage/src/main/java/mage/abilities/keyword/WardAbility.java
new file mode 100644
index 0000000000..d3afdf848c
--- /dev/null
+++ b/Mage/src/main/java/mage/abilities/keyword/WardAbility.java
@@ -0,0 +1,54 @@
+package mage.abilities.keyword;
+
+import mage.abilities.TriggeredAbilityImpl;
+import mage.abilities.costs.Cost;
+import mage.abilities.effects.common.CounterUnlessPaysEffect;
+import mage.constants.Zone;
+import mage.game.Game;
+import mage.game.events.GameEvent;
+import mage.game.stack.StackObject;
+import mage.target.targetpointer.FixedTarget;
+
+/**
+ * @author TheElk801
+ */
+public class WardAbility extends TriggeredAbilityImpl {
+
+    public WardAbility(Cost cost) {
+        super(Zone.BATTLEFIELD, new CounterUnlessPaysEffect(cost), false);
+    }
+
+    private WardAbility(final WardAbility ability) {
+        super(ability);
+    }
+
+    @Override
+    public boolean checkEventType(GameEvent event, Game game) {
+        return event.getType() == GameEvent.EventType.TARGETED;
+    }
+
+    @Override
+    public boolean checkTrigger(GameEvent event, Game game) {
+        if (!getSourceId().equals(event.getTargetId())) {
+            return false;
+        }
+        StackObject stackObject = game.getStack().getStackObject(event.getSourceId());
+        if (stackObject == null || !game.getOpponents(getControllerId()).contains(stackObject.getControllerId())) {
+            return false;
+        }
+        getEffects().setTargetPointer(new FixedTarget(event.getSourceId(), game));
+        return true;
+    }
+
+    @Override
+    public WardAbility copy() {
+        return new WardAbility(this);
+    }
+
+    @Override
+    public String getRule() {
+        return "Ward " + this.getCosts().getText()
+                + " <i>(Whenever {this} becomes the target of a spell or ability an opponent controls, " +
+                "counter that spell or ability unless its controller pays " + this.getCosts().getText() + ")</i>";
+    }
+}
diff --git a/Utils/keywords.txt b/Utils/keywords.txt
index 3b75c7c86b..f3724aab56 100644
--- a/Utils/keywords.txt
+++ b/Utils/keywords.txt
@@ -104,4 +104,5 @@ Undying|new|
 Unearth|cost|
 Unleash|new|
 Vigilance|instance|
+Ward|cost|
 Wither|instance|