Alright then, lets do the math. I'm assuming a great conviction, if it's different you can adjust. So, four shifts to start (and only four shifts unless she's got blank stress boxes, otherwise things can get a bit murky) plus tags on two mild consequences for four more, plus eighteen for inflicting more consequences, and six more for tagging them.
I'd think it wouldn't be too hard to take someone out and change their aspects with thirty-two shifts of power.
Also any fate points she has can invoke her aspects (I imagine she has at least a couple related to spellcasting) or barring that just give a flat +1.