"Can I ask how that works?" She's using someone like Gar as a baseline for how animal shifting works, and as far as she knows he can do anything he wants. There's Vixen and Animal Man, but they mimic an ability rather than actually transforming.

She wants to ask which vigilantes Collette knows, but decides to limit her questions for now, "I am. There's a guy called Batman back home, he picked the theme because bats are kinda scary, you know? And Batgirl's the spin-off franchise."

Since 'sidekick' wouldn't be the right word.