The sigh piques Dabi's curiosity. It isn't one of annoyance or impatience, but a sort of exasperation. The kind someone would give who's seen a lot of things or witnessed experiences over and over. Like an old man shaking his head over a bunch of kids. Right... he's dealing with a vampire who's probably a few hundred years old. Or something like that.

There are a lot of policies regarding the use of Quirks. In the end, it was deemed easiest to only allow Quirk use in limited permits, those held by heroes being more free to use their Quirks. Though smaller and less dangerous Quirks could still be used around a person's home or slipped here and there around the office. Main thing is, if you allow "slippage" for one person, then why not this other person, and if that other gets it, then what about the woman who can rearrange a city block? Why isn't she free to use her Quirk? Not her fault she was born with a much greater power than someone who just looks like a gerbil.

Dabi sweeps his eyes around the other cards laid out. Yep. Won it. And gathers the pot into his hands like a greedy, calm spider so he can drag it all over to himself. The winner.

"Not all of 'em. Some are as simple as bein able to grow ya fingernails or slowly draw small items towards ya, some are mutations like havin a centipede for a head or four extra arms, and some are as powerful as bein able to control the weather or disintegrate anythin ya touch." He leans back in his seat. "But regardless of whether ya Quirk's powerful or sucks, it should still be your choice to use it."

Of course, perhaps with that description, Mayerling might find some reason behind Dabi's world's decision to limit Quirk usage.