Open with petrify skin, go somewhere he can see you a long ways away and keep your distance (open plains would be good) so he keeps moving g towards you. He will eat 80 or so mvs each tick. After you healed, come back with accel so he can't sleep. Again run the fuck away. Before too long his mvs will be zapped and accellerate will make him go unconscious. Then soften to remove petrify and rape his face.
That said, opening with accellerate vs melee will give you the result you see, i.e. not cheating.