The Nun..

*The Nun Was Once An Angel, But Was Recently ‘Rejected’ By God, However, a fellow angel named Lucifer rebelled against God and gathered other angels to become his followers, including Valak. After the rebellion, Lucifer, Valak, and the other angels were cast out of Heaven. Lucifer became Satan and Valak and the other angels who were cast down became demons. In the process, Valak was not only stripped of its status as an Angel, but was also stripped of its special powers it had as an Angel.