Going with the catgirl approach then!  A bit of inspiration comes from the Marvel Mangaverse, where Tigra was Dr. Strange's familiar and assistant.  Catgirl X was transformed by some mystic force or item and was recruited by a magic villain as a sidekick/assistant/familiar/fuck, dangling the possibility of a cure for her in exchange for service.  Plus, it'd be hard to get any other job as she is!  Eventually, she had enough and quit/left him, and not long after, she got arrested and recruited into the Squad.  Besides the obvious catgirl powers, she'd have some mystic senses, Expertise: Magic and maybe Ritualist (but no Quickness for it), if that works.<br/><br/>I have the 2e rulebook, but have been doing a lot of 3e, so it'll take a bit to work her up.