well its not a real rotation you start with putting up 4 twins and then you up hold wall of blades, agony and twins whenever rdy when all is on enemy then you use psycho attack -> scorching
also in beetween use some of your dmg boosting skills
I use the same rotation but casting the assassin at the start.
The damage buffs are very nice ones, over all the Concentration (which increase your damage for 5 secs, but must be careful to use it in the right time bcs is very short) and the racial one that increase the critical chance.