Stats are random - so, you might have luck or not.
I killed him (for experimental sakes) as a mage, by using frost to freeze him and meteorstrike to roast him. I was a pretty low level (about 9?)

But it was not easy, he is fast and I had to run and swear a lot, used pause - freeze - 2-3x meteor - he woke up - pause - freeze - run away - freeze - 2-3xmeteor etc.