Just his voice is enough to ease the worst of anxiety buzzing in Levi's head; along with those slow circles on his back he somehow manages to stay relaxed even as his heart rate picks up a little, his mind frantically darting through memories trying to find anything that could confirm or deny that theory.

It would have been silly to think this place doesn't know about that, he supposes. Could the power inside him latch onto the magic that Ellipsa bestowed on him? In all honesty, that seems likely.

"...you may be right," he mutters, slow, considering. "That's how I discovered I had-- winter abilities. It just happened, on instinct, in a fight."

So if that really was how everything was going to work for him... it's not impossible that a different set of powers could follow the same pattern. If that's even what it is, of course. But then, why couldn't he turn back? He'd had almost perfect control over the water the first time; he just sensed, or maybe knew, what to do. But that wasn't the case with his creature form.

"...I know someone who can turn into a goose at will. Maybe I will speak with him."

Later, though. Right now, he's afraid to leave the comfortable nest of Erwin's arms; he's still choking on upset, and he feels like he might just shrink and grow fur again the moment they stop touching each other.

"This seems like a pain in the ass more than a power, though."