Mine was a minotaur gladiator turned monster hunter (ua fighter subclass). His name was Daniel Notmonster and he’d been called monster so much during his days in the arena that he internalized a hatred of monstrosities. He was driven to prove he wasn’t a monster by killing any he came across. He would also collect a bone from each monstrosity killed to scrimshaw a scene of the battle to kill it.
Yeah, but if you make homebrew they don’t like, they’ll send the Pinkertons after you.
(I know that was about an MTG set. I’m just making a joke about how little faith I have in WOTC.)