I would think you are. I think I was a lower level than that when I finished the game. Isn't there a save point before you fight him?
Foghorn6's forum posts
Oliver gets some powerful spells towards the middle/end of the game that make it easy just to ignore the other party members, so I spent a lot of time running in a circle casting certain spells and not caring what happened to my other party members. Usually things went bad when I would try to help them; however, since I didn't pay much attention to them, I had no idea what to do with the other party members when Oliver died.
I've played Mass Effect 3, Final Fantasy XIII-2, Silent Hill: Downpour, The Darkness II and SSX. I'd say Mass Effect 3 for now.