* replaces all [source} by {this}. ATTENTION !!!: Only supporting [this} from now on in rule text.

Mage/src/main/java/mage/abilities/condition/common/ProwlCostWasPaidCondition.java

@@ -32,7 +32,7 @@ public enum ProwlCostWasPaidCondition implements Condition {
 
     @Override
     public String toString() {
-        return "{source}'s prowl cost was paid";
+        return "{this}'s prowl cost was paid";
     }
 
 }