Nightmares are a creature type concentrated primarily in black, blue, and red, often associated with exile, graveyards, fear, and creatures born from twisted thoughts. Their mechanics are diverse rather than unified under one typal identity.
Chainer, Dementia Master can resurrect creatures as Nightmares, while Nightmare Shepherd turns dying creatures into smaller copies. Umbris, Fear Manifest rewards combining Nightmares and Horrors with aggressive exile effects.
