Mage Bai has powerful light magic. It has no attack power but can protect himself or others very well!
Most of the black mages are dark magics that were practiced before they were evil-minded. They have powerful attack power but cannot save people. However, there is a kind of magicians who have been transformed from white mages into black mages. They have bones and flesh, and they also have powerful attack power... I heard that they are the abandoned favor of God, and they do not belong to anyone!