That's... that's just incredibly stupid.
Play a Warlock. Play something that's NAD. Because anything you're going to play that whack people in the face is going to be dependent on Str/Dex/Con, and you just don't have the stats for it.
For a melee combatant, the best you can do is play a rogue and hope nothing takes a swipe at you. Your AC will be atrocious and your Con won't do that great a job in making up for it. But at least by going that path, you'll have Sneak Attack to make up for not being able to pick up Power Attack.
Well, you could also go Wild Shape Ranger. You'd have WS to make up for your lack of melee stats (except Con, of course), and your low Wisdom won't really be a problem because of the ranger's slow spell progression.