You should have it, when attack, it rolls percnetile, then consults a chart. Stuff like target is dazed, flatfooted, takes 2d6 precision damage, sickened, gets an AoO, you do damage equal to the line integral of an elf maiden's smaller breast, etc.

Seriously though, I like it. It would be a very, very good opponent to throw at the PCs, especially if they were power gamers.