Jump thing isnt too hard to avoid. As soon as you see his red beam come out, start running and then when he jumps, keep running until you are sure everyone is at least 5 yards from him. Then turn around and beat the crap outta him. I beat this after 8 wipes, but it was pure luck. I would always get him to 10% or so and then he will do his 3rd phase of a frontal AoE that hits you about every .4 secs. It's basically instant death if you dont strafe COUNTER clockwise to him. They will get hit once, but should live through it. Good thing is once you are out of AoE you dont have to heal or anything, just full on dps.