With a wide cutting edge, this weapon is designed to hook onto an opponent’s weapon or shield. However, it is awkward to use in a quick response, and its base damage drops one die type on attacks of opportunity.
Sometimes you just want to experiment with a weapon, stretch the boundaries of weapon variations. In my opinion, there are too many weapons with extremely similar mechanics; making weapons function differently in unusual situations is one way to improve that issue. Have fun hacking and slashing!
-Max Porter Zasada