Speaking about combo rotation in a class which dps relies mostly on stuff you as a player dont have active control (crit rating,2-3 specific VoM buffs,proccs from arms,pact) is fail.(except 2-3 specific builds situation oki i give you that)
You tank?oki have your two tap buffs on and spam 1-2 combos , voila VoM and crit rating takes care everything for you.You wanna go one step further? ok respect unshielded and show some love to your combo opener aswell(tricky this one)
You dps? oki have your 8 year old son pressing 5-6 buttons max.
It is sad how this interesting and difficult class before Khitai have been destroyed by FunCom.