I agree, that he would make a good sage-like character--and like Onslaught said, he's already filling that role, to a limited extent. But I don't think there's anything keeping him from being a good fighter: he probably has some knowledge of weaponry, he is a blacksmith after all, and he probably has some interesting magical assets as well. I mean, the man created Masa, Mune, and Doreen, a technical ability like that could help in battle.