[Not knowing that Terra can use magic, Erza assumes that Terra's only referring to her, mistaking her questions for enthusiasm from a lack of exposure to magic.]

It's pretty much unavoidable for me, at least when I'm serious. My magical skills basically revolve around changing my weapons and armour to suit the situation. If you don't want me to use magic, I can just stick with whatever sword I start off with, although I'm not sure why you wouldn't want me to. You sound pretty enthusiastic about seeing magic in action.