Suggested by Joemama Sans is definitely a very well known character in Undertale and he did a good job of keeping the main character at bay. His attacks are rather hard to picture in a 3D environment but they would be hard to dodge. Still, Saber is massively faster than Sans to the point where she could end this with a single strike. He has no way to dodge her attack, nor could he endure it. Ultimately that’s why Sans will fall here. Saber wins.