From 5b58e6df0c2388b78233ca23ea4a3b3308cedb72 Mon Sep 17 00:00:00 2001
From: Evan Kranzler <theelk801@gmail.com>
Date: Sat, 4 Apr 2020 19:31:45 -0400
Subject: [PATCH] Implemented Flawless Maneuver

---
 .../src/mage/cards/f/FlawlessManeuver.java    | 40 +++++++++++++++++++
 .../src/mage/sets/Commander2020Edition.java   |  1 +
 .../common/ControlACommanderCondition.java    | 35 ++++++++++++++++
 3 files changed, 76 insertions(+)
 create mode 100644 Mage.Sets/src/mage/cards/f/FlawlessManeuver.java
 create mode 100644 Mage/src/main/java/mage/abilities/condition/common/ControlACommanderCondition.java

diff --git a/Mage.Sets/src/mage/cards/f/FlawlessManeuver.java b/Mage.Sets/src/mage/cards/f/FlawlessManeuver.java
new file mode 100644
index 00000000000..221994fa05a
--- /dev/null
+++ b/Mage.Sets/src/mage/cards/f/FlawlessManeuver.java
@@ -0,0 +1,40 @@
+package mage.cards.f;
+
+import mage.abilities.condition.common.ControlACommanderCondition;
+import mage.abilities.costs.AlternativeCostSourceAbility;
+import mage.abilities.effects.common.continuous.GainAbilityControlledEffect;
+import mage.abilities.keyword.IndestructibleAbility;
+import mage.cards.CardImpl;
+import mage.cards.CardSetInfo;
+import mage.constants.CardType;
+import mage.constants.Duration;
+
+import java.util.UUID;
+
+/**
+ * @author TheElk801
+ */
+public final class FlawlessManeuver extends CardImpl {
+
+    public FlawlessManeuver(UUID ownerId, CardSetInfo setInfo) {
+        super(ownerId, setInfo, new CardType[]{CardType.INSTANT}, "{2}{W}");
+
+        // If you control a commander, you may cast this spell without paying its mana cost.
+        this.addAbility(new AlternativeCostSourceAbility(null, ControlACommanderCondition.instance));
+
+        // Creatures you control gain indestructible until end of turn.
+        this.getSpellAbility().addEffect(new GainAbilityControlledEffect(
+                IndestructibleAbility.getInstance(), Duration.EndOfTurn
+        ));
+    }
+
+    private FlawlessManeuver(final FlawlessManeuver card) {
+        super(card);
+    }
+
+    @Override
+    public FlawlessManeuver copy() {
+        return new FlawlessManeuver(this);
+    }
+}
+// outstanding move!
diff --git a/Mage.Sets/src/mage/sets/Commander2020Edition.java b/Mage.Sets/src/mage/sets/Commander2020Edition.java
index fb307f181cf..2b9f472cb32 100644
--- a/Mage.Sets/src/mage/sets/Commander2020Edition.java
+++ b/Mage.Sets/src/mage/sets/Commander2020Edition.java
@@ -26,6 +26,7 @@ public final class Commander2020Edition extends ExpansionSet {
         cards.add(new SetCardInfo("Brallin, Skyshark Rider", 4, Rarity.MYTHIC, mage.cards.b.BrallinSkysharkRider.class));
         cards.add(new SetCardInfo("Crop Rotation", 169, Rarity.COMMON, mage.cards.c.CropRotation.class));
         cards.add(new SetCardInfo("Curious Herd", 59, Rarity.RARE, mage.cards.c.CuriousHerd.class));
+        cards.add(new SetCardInfo("Flawless Maneuver", 26, Rarity.RARE, mage.cards.f.FlawlessManeuver.class));
         cards.add(new SetCardInfo("Lifecrafter's Bestiary", 244, Rarity.RARE, mage.cards.l.LifecraftersBestiary.class));
         cards.add(new SetCardInfo("Netherborn Altar", 45, Rarity.RARE, mage.cards.n.NetherbornAltar.class));
         cards.add(new SetCardInfo("Rashmi, Eternities Crafter", 229, Rarity.RARE, mage.cards.r.RashmiEternitiesCrafter.class));
diff --git a/Mage/src/main/java/mage/abilities/condition/common/ControlACommanderCondition.java b/Mage/src/main/java/mage/abilities/condition/common/ControlACommanderCondition.java
new file mode 100644
index 00000000000..4bbbf843d58
--- /dev/null
+++ b/Mage/src/main/java/mage/abilities/condition/common/ControlACommanderCondition.java
@@ -0,0 +1,35 @@
+package mage.abilities.condition.common;
+
+import mage.abilities.Ability;
+import mage.abilities.condition.Condition;
+import mage.constants.CommanderCardType;
+import mage.game.Game;
+import mage.game.permanent.Permanent;
+
+import java.util.Collection;
+import java.util.Objects;
+
+/**
+ * @author TheElk801
+ */
+public enum ControlACommanderCondition implements Condition {
+    instance;
+
+    @Override
+    public boolean apply(Game game, Ability source) {
+        return game.getPlayerList()
+                .stream()
+                .map(game::getPlayer)
+                .filter(Objects::nonNull)
+                .map(player -> game.getCommandersIds(player, CommanderCardType.COMMANDER_OR_OATHBREAKER))
+                .flatMap(Collection::stream)
+                .map(game::getPermanent)
+                .map(Permanent::getControllerId)
+                .anyMatch(source.getControllerId()::equals);
+    }
+
+    @Override
+    public String toString() {
+        return "If you control a commander";
+    }
+}