EpicTale is a comic AU created by Yugogeer on Tumblr, was owned by Timeless Dubs for a time, but has been reclaimed by Yugogeer as of June 2019. Chara wondered why their soul was colorless. It took time for Chara to realize why their soul was different.

How did epic Sans get his scar?

In the original story, Epic! Sans was a fusion of Sans and Gaster, which is how he got his scar. His personality as a result was 90% Sans and 10% Gaster. In the reboot, he's mostly the same, except he isn't fused with Gaster at all.

What does epic Sans always do?

Sans was able to absorb magical blasts, such as blasts from his own Epic Blasters. Then, he was able to fire back the energy he obtained in a beam. It also seems that it empowers the energy it obtains, at least, if Epic wasn't bluffing. Not much is known about this ability.