Demise, King of Armageddon [DR04-EN155] Super Rare Cybernetic Revolution You can only Special Summon

You can only Special Summon "Chaos Emperor

When Cavalier of Gales dies

Set: International Collectors' Edition Type: Artifact Rarity: Rare Cost: {1} Mana Vault doesn't untap during your untap step

Set: International Collectors' Edition Type: Instant Rarity: Common Cost: {1}{W} Destroy target artifact or enchantment

Whenever Elder Gargaroth attacks or blocks

Demise, King of Armageddon [DR04-EN155] Super Rare Cybernetic Revolution You can only Special SummonSet: Dark Revelation Volume 4 Card type: Ritual Effect Monster Rarity: Super Rare Attack: 2400 Defense: 2000 This card can only be Ritual Summoned with the Ritual Spell Card, "End of the World". You can pay 2000 Life Points to destroy all cards on the field except this card.