Sucker Punch: Coming off of Absols high attack and low Speed, this STAB priority is amazing.
Psycho Cut: Gets that critical-hit boost, and takes care of Poison and Fighting types.
Swords Dance: OHKO Sucker Punch anyone?
Superpower: Provides great type coverage.
There really is only one other option, although it is a really good option: Stone Edge, which provides good type coverage and has a high critical-hit rate. Also, you could replace Sucker Punch with Night Slash if you want to press your luck.