As a heads-up, this quirk was actually formed a little bit around Kirishima's Hardening. However, it has some unique aspects to it that make it original.

Basically, skin comes off of the user's body (either in sheets like paper, flakes, or small spikes) and hardens.

This quirk is really cool because I imagine that anyone using it would be creative and use it like shrapnel from bombs, or shoot it out in short bursts at a specific place like porcupine quills. I don't know why making your skin into sheets would be helpful, though, unless you were on ice and needed a foothold that had grip on it. (I came up with that last sentence while writing this XD)

Thanks for looking at these, and feel free to comment a name for this quirk.

This quirk is also able to be used as long as you ask permission from me first.

Bye~! :3