[Twi is still pony-shaped and everything, but now she looks much more wizardly.]

I believe we can, now. Watch.

[And she closes her eyes, her horn starts to glow - and a fireball appears in front of her and zips off to "attack" something that isn't there.]

It doesn't seem to be what I learned in Equestria, though. Some of the spells have similar effects, but they're not cast in the same way.