Undertale : Last Timeline sans PT.2

Description: This is a little AU idea I had a couple days ago so i'll give the basics on it. So, basically In one of the genocide routes sans remembers everything, like including Dusttale, Tears in the Rain, Aftertale, and other version of the UT timelines. So sans like gains their abilities(idk y but...) and decides to finally make an end to it all. So you know, he losses, of course but that doesn't mean he won't try his hardest with all the knowledge and power he has. You WILL have a bad time.