He has that mysterious vibe going which makes me want to learn more about his story and where he came from. I think sometimes when it comes to back stories less is more so good job on that one. His look and personality make him seem a bit like a good guy wrestler. He's big and strong but is always the guy who comes out to defend weaker people against the bad guys. I quite like that. I'd also be interested to find out why such a mountain of a man preffered magic over learning how to swing a huge axe or something.
