This might not be the right place, but I can't find where this is from. Does anyone know about a superpower story where a guy had the superpower to revive into the past. He could also leave weak "echos" in after he goes back to the past. I remember at one point he banged his head against his containment cell until he died, then went back to doing that over and over again until he dented the wall. He may or may not have escaped a barrage of bullet fire after that. It'd be awesome if you can find the story...
I've read stories listed on Web Fiction Guide, Royal Road, and Worm-specific fanfiction forums on spacebattles, so spacebattles is actually a good bet.
Unfortunately, not the story I was looking for, though it looks interesting. The reviving to a slighly earlier time, rather than far to the past, is important to the story. Thanks for helping.