Right now while questing I am doing the following:
Leap to target>Corruption>Hand of Gul'dan>Demonic Slash x3> Soul Fire or Drain Life to finish the mob off.
I'm staying in the Dark Apotheosis stance 100% of the time and I'm not sure if this is correct or if I should be switching to Demon Form when I'm capped out on Demonic Fury
Also I'm using my Succubus as a pet since I'm tanking the mobs myself.
Thanks in advance for your help!