Depp

Depp is a spirit of depression and despair. He visits his victims mind and tries to pull it under to succumb to sorrow. He's of the mindset that only the strong may survive and the weak ones should be tested. The victim usually can't get rid of him but can learn to overpower him.

He's based off somewhat from the short story of the white wolf and the black wolf explained here: http://www.awakin.org/read/view.php?tid=927