Did it? That sounded pretty logical, but... for Nico, there'd never been a cost. Nothing bad had ever happened to him when he used his powers. In fact, it wasn't even so much using them as they just...were there. His were a lot more passive compared to Blaine's, and he assumed they just worked all the time. There wasn't an on/off switch.

"I think you'd know if I was bursting into flames at random times." If that was how Blaine wanted to interpret his name, he wasn't going to argue about it. "I've never had any cost to my powers. Not as far as I know."