Thread:Jester of chaos/@comment-32141455-20170619150406/@comment-4708882-20170620043927

Probably Bill Cipher as he ruined his entire home dimension before taking the over apparently the realm between dimensions: Nightmare Realm. He ultimately destroyed the entire dimension which is more than Aku ever got to do in his life (including the future he ruled) and was planning to cause a similar event in our dimension so he could recreate reality in his image and have complete control.