I mean just look at all the champs from Zaun. I know champions are supposed to be extraordinary, but other city-states all have at least one normal looking human champion. (Even the Void!)
Zaun has: a wolf man, a mad chemist wrapped up because of presumed chemical burns, a giant, bulging, purple doctor, a sentient rat, a robot, a half-robot man....am I missing anybody? Janna, I guess, but she doesn't even fight for Zaun! I figure a blob would fit right in though; he's downright normal compared to the others.