Green Hags are described in the Monster Manual as “wretched and hateful creatures that dwell in dying forests, lonely swamps, and misty moors, making their homes in caves. Green hags love to manipulate other creatures into doing their bidding, masking their intentions behind layers of deception. They lure victims to them by mimicking voices calling out for help, or drive unwanted visitors away by imitating the cries of fierce beasts.”