From 8fcedd1e67680cec656630a0e6d67f4fd44beaed Mon Sep 17 00:00:00 2001
From: Evan Kranzler <theelk801@gmail.com>
Date: Thu, 14 Apr 2022 09:41:22 -0400
Subject: [PATCH] [SNC] Implemented Brass Knuckles

---
 Mage.Sets/src/mage/cards/b/BrassKnuckles.java | 81 +++++++++++++++++++
 .../src/mage/sets/StreetsOfNewCapenna.java    |  1 +
 2 files changed, 82 insertions(+)
 create mode 100644 Mage.Sets/src/mage/cards/b/BrassKnuckles.java

diff --git a/Mage.Sets/src/mage/cards/b/BrassKnuckles.java b/Mage.Sets/src/mage/cards/b/BrassKnuckles.java
new file mode 100644
index 00000000000..9e6dbc2839e
--- /dev/null
+++ b/Mage.Sets/src/mage/cards/b/BrassKnuckles.java
@@ -0,0 +1,81 @@
+package mage.cards.b;
+
+import mage.abilities.Ability;
+import mage.abilities.common.SimpleStaticAbility;
+import mage.abilities.condition.Condition;
+import mage.abilities.decorator.ConditionalContinuousEffect;
+import mage.abilities.effects.common.CastSourceTriggeredAbility;
+import mage.abilities.effects.common.CopySourceSpellEffect;
+import mage.abilities.effects.common.continuous.GainAbilityAttachedEffect;
+import mage.abilities.keyword.DoubleStrikeAbility;
+import mage.abilities.keyword.EquipAbility;
+import mage.cards.CardImpl;
+import mage.cards.CardSetInfo;
+import mage.constants.AttachmentType;
+import mage.constants.CardType;
+import mage.constants.SubType;
+import mage.game.Game;
+import mage.game.permanent.Permanent;
+
+import java.util.Collection;
+import java.util.Objects;
+import java.util.Optional;
+import java.util.UUID;
+import java.util.stream.Stream;
+
+/**
+ * @author TheElk801
+ */
+public final class BrassKnuckles extends CardImpl {
+
+    public BrassKnuckles(UUID ownerId, CardSetInfo setInfo) {
+        super(ownerId, setInfo, new CardType[]{CardType.ARTIFACT}, "{4}");
+
+        this.subtype.add(SubType.EQUIPMENT);
+
+        // When you cast this spell, copy it.
+        this.addAbility(new CastSourceTriggeredAbility(new CopySourceSpellEffect().setText("copy it")));
+
+        // Equipped creature has double strike as long as two or more Equipment are attached to it.
+        this.addAbility(new SimpleStaticAbility(new ConditionalContinuousEffect(
+                new GainAbilityAttachedEffect(
+                        DoubleStrikeAbility.getInstance(), AttachmentType.EQUIPMENT
+                ), BrassKnucklesCondition.instance, "equipped creature has double strike " +
+                "as long as two or more Equipment are attached to it"
+        )));
+
+        // Equip {1}
+        this.addAbility(new EquipAbility(1));
+    }
+
+    private BrassKnuckles(final BrassKnuckles card) {
+        super(card);
+    }
+
+    @Override
+    public BrassKnuckles copy() {
+        return new BrassKnuckles(this);
+    }
+}
+
+enum BrassKnucklesCondition implements Condition {
+    instance;
+
+    @Override
+    public boolean apply(Game game, Ability source) {
+        return Optional
+                .of(source.getSourcePermanentIfItStillExists(game))
+                .filter(Objects::nonNull)
+                .map(Permanent::getAttachedTo)
+                .map(game::getPermanent)
+                .filter(Objects::nonNull)
+                .map(Permanent::getAttachments)
+                .map(Collection::stream)
+                .map(stream -> stream.map(game::getPermanent))
+                .map(stream -> stream.filter(Objects::nonNull))
+                .map(stream -> stream.filter(p -> p.hasSubtype(SubType.EQUIPMENT, game)))
+                .map(Stream::count)
+                .map(x -> x >= 2)
+                .orElse(false);
+    }
+}
diff --git a/Mage.Sets/src/mage/sets/StreetsOfNewCapenna.java b/Mage.Sets/src/mage/sets/StreetsOfNewCapenna.java
index 95ba8715769..d2fb1402eaf 100644
--- a/Mage.Sets/src/mage/sets/StreetsOfNewCapenna.java
+++ b/Mage.Sets/src/mage/sets/StreetsOfNewCapenna.java
@@ -40,6 +40,7 @@ public final class StreetsOfNewCapenna extends ExpansionSet {
         cards.add(new SetCardInfo("Body Launderer", 68, Rarity.MYTHIC, mage.cards.b.BodyLaunderer.class));
         cards.add(new SetCardInfo("Bootleggers' Stash", 134, Rarity.MYTHIC, mage.cards.b.BootleggersStash.class));
         cards.add(new SetCardInfo("Botanical Plaza", 247, Rarity.COMMON, mage.cards.b.BotanicalPlaza.class));
+        cards.add(new SetCardInfo("Brass Knuckles", 234, Rarity.UNCOMMON, mage.cards.b.BrassKnuckles.class));
         cards.add(new SetCardInfo("Brazen Upstart", 169, Rarity.UNCOMMON, mage.cards.b.BrazenUpstart.class));
         cards.add(new SetCardInfo("Brokers Ascendancy", 170, Rarity.RARE, mage.cards.b.BrokersAscendancy.class));
         cards.add(new SetCardInfo("Brokers Charm", 171, Rarity.UNCOMMON, mage.cards.b.BrokersCharm.class));