The Oracle

The Oracle was once a dark demon assassin from the Realm Of Darkness who was killed by a couple of archers. His spirit chooses to roam the Eternal Darkness Portal and tells fortunes to the living and answers any unknown questions. He only shows up once so far in the show where AceDubs was trying to figure out how to get to Buffalo Billy's New Lair, so he decided to go to the eternal darkness portal to ask the oracle who then tells him to use some hidden passage.