EVIL

To dream of something or someone evil suggests that the dark and negative side of yourself needs to be released or recognized, or that you feel like someone is plotting against you. The dream may also indicate powerful and hostile feelings that you have during your waking hours, such as hate, jealousy, anger, and desires. 

Dreaming of being evil means that you are aware that you are doing something that isn’t right during your waking time. It may also refer to the regret or guilt that you feel for doing something wrong in the past.