Every class gets a fluff ability at level 20. Warlocks, for instance, can turn any player into a toad at will (toad form is harmless to a player's ability to be effective). The kata is our fluff piece; a way to show off our martial arts prowess. It's fun, it's useless, and it's entirely optional.
hmm, how does it work as i never seen this before? should i have gotten it at level 20? like other racial traits and stuff?