Advice for my Demise Deck?

Somehow you need to put in Advance Ritual Art. I use light and dark normal monsters for advance ritual art so that I can summon Chaos sorcerer with the two lv 4 monsters I send to the grave. Also Swords Of Revealing Light and Gravity Bind will help stall until Demise nukes the field. I would replace the D Prisons with Magical Cylinders and get a mirror force. Also try to run more stall cards. I use battle faders to prevent my opponent from getting a quick comeback if my life points run low from using demise. Try to take out 1 end of the world and replace with contract with the abyss invade your opponent use prohibition or curse seal of the forbidden spell.