Codex Gigas devil

An image of the Devil from the Codex Gigas

A Devil is a demonic entity that is said to be the source of all evil. Most religions have their own concepts of a single Devil that exists to corrupt the souls of man and is the eternal enemy of God. They are said to be the kings of all demons and possess great power, though the powers of Devils tend to differ depending on the religion.

List of Devils in religion