Right now he's crap. Flail is nice but easily disarmed and then you'll probably lose. Think about picking up other weapons if they're good ones like shuriken, whip, trident, sai. You also desperately need a disarm skill and martial arts.
But, there's a lot of potential there -- vitalite and immorte of course, but with a bit of strength and some static defenses, particularly shield, he could be a really good brute.