I'd skip the fighter. Go for a Half-orc Paladin. Thematically speaking you could play the big, dumb, loving bear type similar to a Gray Render. Instead of being trained into him by years in a monastery, have it be instinct. This might require the aid of another PC that can "correct" your actions in some cases. It also helps if you can talk your DM out of the *Lawful Good* rules and see if you can play a Paladin that is of the same alignment as the deity you choose (I only throw this out there because that's the way my group runs Paladins.) Use Catch Off Guard, Throw Anything, Imp. Unarmed Strike, Imp. Grapple. This way you can pick up bar stools, dead goblins, live goblins, rocks, sticks- whatever strikes your fancy, or whatever is laying around and use the Paladins Divine Bond ability to be throwing/swinging Speeding-Holy-Barstools/goblins/rocks/sticks of doom at Dragons.