A bottle containing another world is, sadly, far from the strangest thing she's heard, even discounting the city on the back of a giant turtle. Raine doesn't ask more about the bottle, just keeps following and listening.

"I've heard Korra's name, at least. She uses water to heal, correct?" Raine stops when Bianca does, gives the doors a brief glance, then looks back to Bianca, thinking while she waits. Tools and medicine are just different facets of the healing discipline as far as she's concerned, ones that can succeed in situations that magic can't. It would be valuable to learn more.

"I haven't had the opportunity to see if my own artes work on those who have unfamiliar physiologies, but in theory, there shouldn't be a significant difference." And she grimaces a little. "Theory is an unfortunately fragile thing, sometimes."

That is the worst kind of surprise, and even if she doesn't know the exact feeling, she knows something similar enough she can sympathize.