diff --git a/src/forge/Card.java b/src/forge/Card.java
index 9c38e252f52..bf1a3827927 100644
--- a/src/forge/Card.java
+++ b/src/forge/Card.java
@@ -2798,11 +2798,15 @@ public class Card extends MyObservable {
              else if (Property.startsWith("notattacking")) { if(isAttacking())  return false;}
  			
              else if (Property.startsWith("blocking")) { if(!isBlocking())  return false;}
+        
+             else if (Property.startsWith("blockingSource")) { if(!isBlocking(source))  return false;}
 		
              else if (Property.startsWith("notblocking")) { if(isBlocking())  return false;}
 		
              else if (Property.startsWith("blocked")) { if(!AllZone.Combat.isBlocked(this))  return false;}
         
+             else if (Property.startsWith("blockedBySource")) { if(!isBlockedBy(source))  return false;}
+        
              else if (Property.startsWith("unblocked")) { if(!AllZone.Combat.isUnblocked(this))  return false;}
         
              else if (Property.startsWith("kicked")) { if(!isKicked()) return false; }
@@ -2902,6 +2906,14 @@ public class Card extends MyObservable {
      	return blockers.contains(this);
 	}
 	
+	public boolean isBlocking(Card attacker) {
+     	return attacker.equals(AllZone.Combat.getAttackerBlockedBy(this));
+	}
+	
+	public boolean isBlockedBy(Card blocker) {
+     	return this.equals(AllZone.Combat.getAttackerBlockedBy(blocker));
+	}
+	
 	///////////////////////////
 	//
 	// Damage code