Demise/Doom OTK

The Demise/Doom OTK needs:


 * at least 2000 Life Points remaining
 * Advanced Ritual Art
 * Demise, King of Armageddon
 * Doom Dozer
 * Megamorph or Metamorphosis
 * At least two Normal Level 4 Insect-type Monsters (such as Insect Knight or Neo Bug) in the Deck
 * For the Metamorphosis method, Cyber Twin Dragon in the Fusion Deck

Play Demise using Advanced Ritual Art (putting two Normal Level 4 Insect-type Monsters from the deck into the Graveyard), then pay 2000 Life Points to use Demise's effect to destroy all the cards on the field except itself.

Next, Special Summon Doom Dozer by removing the two Insect-type Monsters from the Graveyard.

Afterward, play Megamorph on Doom Dozer, or Metamorphosis on either Demise or Doom Dozer (summoning Cyber Twin Dragon), then attack for over 8000 damage.