Bill cipher is a dream demon comprised of pure energy. He claims he has no weakness. He is able to enter the mind of anyone or anything. If he gains physical form he will destroy everything so. DON'T LET HIM GET PHYSICAL!!!. Whats that you already did? Well too bad i'm not helping. Anyway, he is widely disliked among Wyvern's for his crimes of chaos. All of his ideas have no order witch usually ends up with water towers coming to life and eating people or bbq's doing the same thing. He is known for his chaotic train of thought and hates natural magic. His is more forced than natural. He is a big fan of ciphers and codes and is on the back of your dollar bill right now. Go on look, he's there, although he is green its still him. His symbol is similar to the deathly hallows