User blog comment:Trident81/The Most Powerful Quirk/@comment-24774852-20180701041855

Overhaul. When they first showed it to us, it was very Op. killing anything with a touch, or desintegrating half of something if you wanted. But then on the fight against Overhaul they nerfed it a lot and for some reason he didn't use his quirk one to try to kill his enemies. If used the right way, it would be the most powerful one.