This is almost completely different from what I would have come up with, and yet I think I agree with all of it!

(Faith is a wizard. She had a horrible and protracted and incredibly messy Ordeal, but she came through it in the end. Slayers' Ordeals are usually at least that horrible, which is why few of them have been wizards. Or at least, few of them were wizards for long. Robin's a wizard, too. So is Gunn.)