Well I got the Aura of Guarding skill and that helped a little bit. The problem is as soon as he lands one hit I am instantly killed, even if I am at full health. I don't even get a chance to use a potion. I am level 17 now and still can't do it. I tried using a shadow potion but as soon as I enter the room it cancels. My resistances are all fairly low, I'm not certian of the numbers, but they are all below ten.

Any other ideas?