"Well, looks like I got a pretty interesting mutation this time around..."

The cat now has powers and lore!

The guy is named Francisco and he is an artificially created being, a homunculus. His creator decided to see if he could take every dark magic enchantment he could find and somehow put them together in a way to negate all bad effects while still having the good ones. The result is this guy, a cat with the ability to mutate whenever he wants to get a randomized power-up. Sometimes they are good, sometimes bad, and rarely are they so niche they are useless. But don't worry! he can always undo mutations at the cost of probably never seeing that mutation ever again.