Actually, Reformist isn't a coder anymore. He left that to Dante (Dante got the source from him). Yes, it's a real move. It's called Assassinate and it's a skill tree passive. It doesn't do any damage alone though, it just teleports behind the person and stuns them.
In my opinion, a lot of clans really do need re-worked. Then again, that's how I feel and Dante probably doesn't feel that way.