Yeah, I had a little problem with him at first. Just do like I did, wait until you are around level 35, yes that means leave him alone for a little while, because you don't need to go to the places that he is blocking yet, so go level to around 35, and try to get your 3 main charactors level 3 quickenings, and release all hell on them with your quickenings. I hit him with a 19 hits from my quickening and quickly switched one charactor, and did another 11 hit quickening on him and he went POOF be gone.