Here's a thought, though: If they can manage to get Kana out of that lacryma, maybe she can use magic too, since she uses cards.
And maybe Arzack, Visca, and Earthland Erza, too. Arzack because he uses an item (guns), and Visca and Erza because they only use their magic to store their weapons (armor, in Erza's case), not utilize them. Also, doesn't Reedus use magic paintbrushes/paint, and Levy use magic pens?