Once creatures of the Vivid Realms, night hags were horrendously hideous beings, and were exiled to the Lower Realms for their foulness. Unrivaled in their repulsiveness even when compared to most other hags, they were most visually similar to small female trolls, complete with a strange strength hidden behind their decrepit frames and a deadly set of long, night-black nails.
Night hags had access to unique and deadly magical items, arrays of minions, and a willingness to sacrifice all of them to protect herself if need be. When they believed themselves to have reasonable chances of success they would quickly murder any goodly being they came across. They were especially feared among hags due to their ability to move to the Ethereal Border plane, haunting the dreams of those who wronged them. They would slowly sap a hexed target's energy over the course of days and weeks, eventually draining their target of all life.