Delete: he once was an average sans. But like many other aus he had suffered the wrath of error. But error got creative with his torturing for delete. Instead of killing him he would constantly throw him into void like areas and screw up his body. And error gave his powers to delete the power of erasing and destroying. But yet error kept on torturing and eventually brought him to the brink of insanity his soul was in various pieces his mind didn't feel like his anymore. Inevitably error took control of delete. And delete also helps out with nightmare and his team. Delete might never find out about what he used to be like but for now he just serves.
Powers: everything that error can do.
Can transform his hands into different shapes.