So I have known this for awhile, and it happened when 6.0 came out. So if your a class that can wear/Transmog Polearms you can have some fun before Blizz notices it.
This is a Treasure weapon in Pandaria. Now the thing with this at the moment is if you transmog this your weapon disappears. Now you will still have the stance like your holding a weapon but nothing will be there and you will be punching everything. I hope you all enjoy this.