Pride Profile: Nightmare Nurse. Asa was a demon who decided the best way to save her dying human mistress was to take over her body. Having sworn the Hippocratic Oath to Apollo and Panacea, Asa became the Nightmare Nurse. Created by Dan DiDio, J.M. Dematteis, and Philip Tan, Nigthmare Nurse debuted in The Phantom Stranger #8 where she worked with Zatanna to heal the injured Stranger. When she’s not enjoying the company of dryads and sylphs, or John Constantine, this naughty nurse sometimes helps out the Justice League Dark with her abilities to heal and wield magic.