>>96293034
Is a villain I run in the game I GM.

Nobody in the group even knew who this chick was until the party got to her. A city had a large disease break out with people dying (turned out to be dysentery cause the sewer broke and infected the water). A saint from a major religion in the setting had been in the area and went to the city to help. About a week later people stopped dying, but didn't heal or get better. They just stopped dying. And not just the sick people, but even like people who were stabbed, and they all kept feeling the pain. Then it started effecting livestock, so cut up chickens kept moving while being butchered kind of thing. Fucked up shit.
Deep under the sewer was a cavern she had found with an altar to an outer god similar to Nyarlathotep but instead of being dedicated to suffering it was a god of life. It leashed her to the altar and made it impossible for things to die in an ever growing sphere of influence. The party had been given a gift by someone known as the Chained Man, who was just some dude chained at the top of a mountain for thousands of years. The gift let them disrupt influence from the outer planes. Killing her was a really big relief.