Thanks neurovore.
I'm not really the kind of person that's interested in introducing someone who doesn't have powers, giving them powers and then telling the story of them learning to use the powers.
I'm much more of "I think I'm gonna throw the reader kicking and screaming into this situation and see if they can fend for themselves." variety of writer. My character already has the power over demons, to manipulate them, to control them. But the question is, how well can he do that? The answer: not very well. I kind of think of him as someone who's been wrangling bulls for a year. Kind of a greenhorn at the doings of it, but competent and confident enough to that it will make for some interesting stories and circumstances.