Bleed sans

Backstory
He lived on the surface in his AU, BleedTale could, he was with his brother Papyrus in the same house. But some people did not agree with the monster that lived then, so some of them hurt Papyrus and put him in a coma. One day, when Sans was walking alone madly about what had happened then to a strange little creature made of dark red goop, I told him that it could give him the strength to wreak havoc. Sans accepted the deal, and the red goop (also known as the Epidemic Parasite) entered his body and helped him take revenge. But Epidemic Parasite tricked him and took control of Sans' body, then said he would suck blood for humans to feed and infect the corpses and acted like zombies. Soon, the entire AU was infected by Bleed and his army of zombies, only Alphys and Papyrus managed to escape.

After a few years, he found a way to go to different AUs and start infecting the adored AUs.

Personality
The bleeding without personality changed her because of the Epidemic Parasite, now she's a maniac who likes to drink blood and always has a sad gloom on her face.

Abilities
Regeneration

Bleeding blasters

He can infect the living or dead bodies of the victims and then make his servants zombies

Hard bone: hey I'm very strong then normal bones

Infection: its ability allows it not only to infect bodies, but also food and drink, so if someone eats / drinks, the person will become infected