"Yeah, okay. We're kinda stuck doing that here anyway, right? ...not that I know how magic works here, or how we're doing it."

He's not thought about it either. Is he drawing it out from around him here, or from inside? Eh, whatever - if it works, it works. It's exhausting, whichever place he's getting most of it.

But that's nothing new for anything that isn't time magic.