or... or... or you can just click in the race name when playing. Remember you can add 2 poinst to str and agi in the lab, and 2 points to magic with the beauty palor (is this how its called? the tattoo/piercing upgrade). Strong, Quick, Responsive and Robust adds 2 points to str, agi, ma and end respectively, so the perfect killing machine would be a dragonkin free of negative traits and with all of these traits + lab upgrades to str, agi and skin armor(unique dragon race perk).
As of last version however, I think fairy/drow with 6 ma, +tattoo, can pretty much hit kill everything in the game with acid spit (except super golem and wyrm, even so will take more than half its health), it doesnt even need the responsive trait and weapon/armor/acc with ma.