* Fixed Sightless Brawler cannot attack with other creatures attacking (fixes #2133).

Mage.Sets/src/mage/sets/journeyintonyx/SightlessBrawler.java

@@ -32,11 +32,12 @@ import mage.MageInt;
 import mage.abilities.Ability;
 import mage.abilities.common.SimpleStaticAbility;
 import mage.abilities.effects.Effect;
-import mage.abilities.effects.common.combat.CanAttackOnlyAloneEffect;
+import mage.abilities.effects.common.combat.CantAttackAloneAttachedEffect;
 import mage.abilities.effects.common.continuous.BoostEnchantedEffect;
 import mage.abilities.keyword.BestowAbility;
 import mage.abilities.keyword.CantAttackAloneAbility;
 import mage.cards.CardImpl;
+import mage.constants.AttachmentType;
 import mage.constants.CardType;
 import mage.constants.Duration;
 import mage.constants.Rarity;
@@ -65,7 +66,7 @@ public class SightlessBrawler extends CardImpl {
         Effect effect = new BoostEnchantedEffect(3, 2, Duration.WhileOnBattlefield);
         effect.setText("Enchanted creature gets +3/+2");
         Ability ability = new SimpleStaticAbility(Zone.BATTLEFIELD, effect);
-        effect = new CanAttackOnlyAloneEffect();
+        effect = new CantAttackAloneAttachedEffect(AttachmentType.AURA);
         effect.setText("and can't attack alone");
         ability.addEffect(effect);
         this.addAbility(ability);

Mage.Tests/src/test/java/org/mage/test/cards/abilities/keywords/BestowTest.java

@@ -389,7 +389,7 @@ public class BestowTest extends CardTestPlayerBase {
         // Bestow 4W (If you cast this card for its bestow cost, it's an Aura spell with enchant creature. It becomes a creature again if it's not attached to a creature.)
         // Sightless Brawler can't attack alone.
         // Enchanted creature gets +3/+2 and can't attack alone.
-        addCard(Zone.BATTLEFIELD, playerA, "Sightless Brawler");
+        addCard(Zone.BATTLEFIELD, playerA, "Sightless Brawler"); // 3/2
         addCard(Zone.BATTLEFIELD, playerA, "Elite Vanguard"); // {W} 2/1 creature
 
         attack(1, playerA, "Sightless Brawler");

Mage/src/main/java/mage/abilities/effects/common/combat/CantAttackAloneAttachedEffect.java

@@ -0,0 +1,53 @@
+/*
+ * To change this license header, choose License Headers in Project Properties.
+ * To change this template file, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package mage.abilities.effects.common.combat;
+
+import mage.abilities.Ability;
+import mage.abilities.effects.RestrictionEffect;
+import mage.constants.AttachmentType;
+import mage.constants.Duration;
+import mage.game.Game;
+import mage.game.permanent.Permanent;
+
+/**
+ *
+ * @author LevelX2
+ */
+public class CantAttackAloneAttachedEffect extends RestrictionEffect {
+
+    public CantAttackAloneAttachedEffect(AttachmentType attachmentType) {
+        super(Duration.WhileOnBattlefield);
+        if (attachmentType.equals(AttachmentType.AURA)) {
+            this.staticText = "Enchanted creature can't attack alone";
+        } else {
+            this.staticText = "Equipped creature can't attack alone";
+        }
+    }
+
+    public CantAttackAloneAttachedEffect(final CantAttackAloneAttachedEffect effect) {
+        super(effect);
+    }
+
+    @Override
+    public CantAttackAloneAttachedEffect copy() {
+        return new CantAttackAloneAttachedEffect(this);
+    }
+
+    @Override
+    public boolean canAttackCheckAfter(int numberOfAttackers, Ability source, Game game) {
+        return numberOfAttackers > 1;
+    }
+
+    @Override
+    public boolean applies(Permanent permanent, Ability source, Game game) {
+        Permanent attachment = game.getPermanent(source.getSourceId());
+        if (attachment != null && attachment.getAttachedTo() != null
+                && permanent.getId().equals(attachment.getAttachedTo())) {
+            return true;
+        }
+        return false;
+    }
+}

Mage/src/main/java/mage/abilities/effects/common/combat/CantAttackAloneSourceEffect.java

@@ -15,20 +15,20 @@ import mage.game.permanent.Permanent;
  *
  * @author LevelX2
  */
-public class CantAttackAloneEffect extends RestrictionEffect {
+public class CantAttackAloneSourceEffect extends RestrictionEffect {
 
-    public CantAttackAloneEffect() {
+    public CantAttackAloneSourceEffect() {
         super(Duration.WhileOnBattlefield);
         staticText = "{this} can't attack alone";
     }
 
-    public CantAttackAloneEffect(final CantAttackAloneEffect effect) {
+    public CantAttackAloneSourceEffect(final CantAttackAloneSourceEffect effect) {
         super(effect);
     }
 
     @Override
-    public CantAttackAloneEffect copy() {
+    public CantAttackAloneSourceEffect copy() {
-        return new CantAttackAloneEffect(this);
+        return new CantAttackAloneSourceEffect(this);
     }
 
     @Override

Mage/src/main/java/mage/abilities/keyword/CantAttackAloneAbility.java

@@ -28,7 +28,7 @@
 package mage.abilities.keyword;
 
 import mage.abilities.common.SimpleStaticAbility;
-import mage.abilities.effects.common.combat.CantAttackAloneEffect;
+import mage.abilities.effects.common.combat.CantAttackAloneSourceEffect;
 import mage.constants.Zone;
 
 /**
@@ -37,7 +37,7 @@ import mage.constants.Zone;
 public class CantAttackAloneAbility extends SimpleStaticAbility {
 
     public CantAttackAloneAbility() {
-        super(Zone.BATTLEFIELD, new CantAttackAloneEffect());
+        super(Zone.BATTLEFIELD, new CantAttackAloneSourceEffect());
     }
 
     private CantAttackAloneAbility(CantAttackAloneAbility ability) {