Obviously she has magic, what else would she be.

[The impatience in his tone isn't only condescending now, it's resentful. Like it's a burden he has to stop and explain such an obvious fact.]

We shall see. I may have been disarmed, for the moment, but once I reclaim my wand or find a suiting replacement I shall be able to defend myself from any attempts to curse or transfigure my person.