Fade

Fade is a fatally wounded Sans from a now eradicated universe thanks to Photo-Negative Gaster, he is now spending the rest of his days roaming around the Omniverse as he slowly fades from existence.

Backstory
Fade's story takes place near the end of a genocide route, Sans is waiting in the judgment hall for the human child to enter so he can judge them. Then all of a sudden, a mysterious white and black figure appears in front of Sans. The figure sort of resembled Gaster but with inverted colors, this would probably be Photo-Negative Gaster. Sans asks the figure who it is and why it was even here in the first place. The figure didn't respond, all it did was make glitchy sounds and start to drain the color out of the entire Judgment Hall before it's colors began to slowly invert. Then, the figure held up it's hand and shot a black beam right into Sans' chest, launching him out of the corridor's window. After a rather long fall, Sans made impact with the ground as he saw the rest of the entire timeline start to slowly invert it's colors. As Sans started to slowly regain consciousness from his fall, he started to notice that he himself was starting to lose color and become inverted, just like the rest of his timeline. He put his hand on his chest, only to find that there was a big, gaping hole from where the blast hit him at, and he could have sworn that he could feel his very soul. Although he couldn't really see it, Sans' soul had become slightly faded as it shone in a bright white glow. At this point, Sans shouldn't even be alive on the account of all the pain he had just been put through, but because the blast had hit him directly in his soul, it made him become inverted, so that his already severely depleted HP which was very far down in the negatives acted as if the HP value was still positive. So then, Sans tried to grab onto a surface so that he could help himself up, but once he had gotten up the surface was gone, as if it had faded away. He was very alarmed and confused by this, he refused to believe that he had made something fade out of existence with his bare hands, but that didn't matter. Once he looked away from where the surface he helped himself back up with, all of his surroundings had begun to slowly fade away as well, not to his doing, but to the figure's. It had already won, it had already destroyed everything that Sans grew to love and care for. The entire timeline, the entire universe in which Sans resided in, gone... Slowly fading away...

Inverted HP
Thanks to having been inverted by Photo-Negative Gaster's blast, Fade's HP, which was already deep in the negatives, now behaves as positive HP. Meaning that if he were to be hit by a normal attack, his HP would technically go up. However if he were to be attacked by a healing attack, this would actually start to damage him due to him and his HP being completely inverted.

FADE Effect
While Fade still utilizes the normal bones and blaster attacks, their effects have been altered from the blast to his soul. Instead of utilizing the usual KR effect that Sans' attacks would normally inflict upon you, Fade's attacks will now inflict the FADE effect instead of KR. What this does is that once you get hit by any of Fade's attacks, you will start to fade from existence. The speed of fading away depends on the target's strength and overall power, such as if it were to hit a being whose power is somewhere along the lines of Low Multiversal, they would disappear at a rather slow rate, approximately 10 minutes at the very least. While this effect makes Fade's attacks extremely dangerous, it can only effect most beings. The beings that the FADE cannot effect are, as follows:

-Any beings that are High Multiversal and above

-Other inverted beings

-Any beings that have a resistance to effects like this

Fading Touch
While his bone and blaster attacks are already immensely dangerous, Fade's touch of his hands is far more dangerous. Getting touched by Fade will cause you to fade away at a much faster rate. While this is possibly Fade's most dangerous attack, it still cannot effect beings that are listed above.

Teleportation/Universal Travel
This ability allows Fade to travel from universe to universe via teleportation. Though Fade tries to avoid using this ability at all costs in fear that him stepping into a universe might accidentally make it fade away from existence, he wouldn't dare wish a fate such as that upon even the most wicked and disgruntled universe.

Trivia

 * Fade is Photo-Negative Gaster's first victim.
 * This is the second wiki article that I have made of Fade, the first one being on Trello dating all the way back to 4/24/2020.
 * The aforementioned Trello article can be found here.
 * While now being completely void of any emotions or feelings, Fade will still occasionally crack a pun or two from time to time.
 * Eating any kind of food is now detrimental to Fade's HP, so he stays away from the stuff.