I main Sly but I can't find any other combos. I already know Down-Circle to triangle forward, Up-grab to (air) triangle-forward, Neutral circle to double square, And a lot of the other basics. Any other ones I'm missing?
dS (charged guard break), dS, uS-S Or skip the first hit if you aren't looking for a guard break. This combo works really well as a tech chase, with a mine to stop them from rolling behind you, as it nearly guarantees them getting hit by the charged dS.
This is quite possibly the worst user on GameFAQs: http://www.gamefaqs.com/boards/user.php?=2426382