diff --git a/Mage/src/main/java/mage/watchers/common/BlockedByOnlyOneCreatureThisCombatWatcher.java b/Mage/src/main/java/mage/watchers/common/BlockedByOnlyOneCreatureThisCombatWatcher.java
new file mode 100644
index 0000000000..3e91f1f0b0
--- /dev/null
+++ b/Mage/src/main/java/mage/watchers/common/BlockedByOnlyOneCreatureThisCombatWatcher.java
@@ -0,0 +1,100 @@
+/*
+ *  Copyright 2010 BetaSteward_at_googlemail.com. All rights reserved.
+ * 
+ *  Redistribution and use in source and binary forms, with or without modification, are
+ *  permitted provided that the following conditions are met:
+ * 
+ *     1. Redistributions of source code must retain the above copyright notice, this list of
+ *        conditions and the following disclaimer.
+ * 
+ *     2. Redistributions in binary form must reproduce the above copyright notice, this list
+ *        of conditions and the following disclaimer in the documentation and/or other materials
+ *        provided with the distribution.
+ * 
+ *  THIS SOFTWARE IS PROVIDED BY BetaSteward_at_googlemail.com ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ *  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ *  FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL BetaSteward_at_googlemail.com OR
+ *  CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ *  CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ *  SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ *  ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ *  NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ *  ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ * 
+ *  The views and conclusions contained in the software and documentation are those of the
+ *  authors and should not be interpreted as representing official policies, either expressed
+ *  or implied, of BetaSteward_at_googlemail.com.
+ */
+package mage.watchers.common;
+
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.Map;
+import java.util.Set;
+import java.util.UUID;
+import mage.constants.WatcherScope;
+import mage.game.Game;
+import mage.game.combat.CombatGroup;
+import mage.game.events.GameEvent;
+import mage.watchers.Watcher;
+
+/**
+ *
+ * @author L_J
+ */
+public class BlockedByOnlyOneCreatureThisCombatWatcher extends Watcher {
+
+    private final Map<CombatGroup, UUID> blockedByOneCreature = new HashMap<>();
+
+    public BlockedByOnlyOneCreatureThisCombatWatcher() {
+        super(BlockedByOnlyOneCreatureThisCombatWatcher.class.getSimpleName(), WatcherScope.GAME);
+    }
+
+    public BlockedByOnlyOneCreatureThisCombatWatcher(final BlockedByOnlyOneCreatureThisCombatWatcher watcher) {
+        super(watcher);
+        this.blockedByOneCreature.putAll(watcher.blockedByOneCreature);
+    }
+
+    @Override
+    public void watch(GameEvent event, Game game) {
+        if (event.getType() == GameEvent.EventType.BEGIN_COMBAT_STEP_PRE) {
+            this.blockedByOneCreature.clear();
+        }
+        else if (event.getType() == GameEvent.EventType.BLOCKER_DECLARED) {
+            CombatGroup combatGroup = game.getCombat().findGroup(event.getTargetId());
+            if (combatGroup != null) {
+                if (combatGroup.getBlockers().size() == 1) {
+                    if (!blockedByOneCreature.containsKey(combatGroup)) {
+                        blockedByOneCreature.put(combatGroup, event.getSourceId());
+                    }
+                    else if (blockedByOneCreature.get(combatGroup) != event.getSourceId()) {
+                        blockedByOneCreature.put(combatGroup, null);
+                    }
+                }
+                else if (combatGroup.getBlockers().size() > 1) {
+                    blockedByOneCreature.put(combatGroup, null);
+                }
+            }
+        }
+    }
+
+    public Set<CombatGroup> getBlockedOnlyByCreature(UUID creature) {
+        Set<CombatGroup> combatGroups = new HashSet<>();
+        for (Map.Entry<CombatGroup, UUID> entry : blockedByOneCreature.entrySet()) {
+            if (entry.getValue() != null) {
+                if (entry.getValue().equals(creature)) {
+                    combatGroups.add(entry.getKey());
+                }
+            }
+        }
+        if (combatGroups.size() > 0) {
+            return combatGroups;
+        }
+        return null;
+    }
+
+    @Override
+    public BlockedByOnlyOneCreatureThisCombatWatcher copy() {
+        return new BlockedByOnlyOneCreatureThisCombatWatcher(this);
+    }
+}