A Slayer, in the fictional Buffyverse established by Buffy and Angel, is a young female bestowed with mystical powers that originate from the essence of a pure-demon, which gives her superhuman senses, strength, speed, endurance, agility, and healing in the fight against forces of darkness. She also receives prophetic dreams in the few hours that she sleeps. While they are commonly referred to as "Vampire Slayers", even by Watchers and vampires themselves, the Slayer may operate as a defender against any and all supernatural threats.