Chaos Emperor Dragon - Envoy of the End [DR2-EN056] Ultra Rare 069 Once per turn: You can

Once per turn: You can target 1 face-up monster on each player's field

Set: Wizards of the Coast: Black Star Promos Type: Water Rarity: Black Star Promo Retreat cost: Colorless

Set: Diamond & Pearl: Secret Wonders Type: Lightning Rarity: Holo Rare Retreat cost: Colorless

Set: Dark Saviors Card type: Quick-Play Spell Rarity: Secret Rare If you control no monsters in your Main Monster Zones: Target 1 Effect Monster on the field

but its original ATK becomes 0

Chaos Emperor Dragon - Envoy of the End [DR2-EN056] Ultra Rare 069 Once per turn: You canSet: Dark Revelation Volume 2 Card type: Effect Monster Rarity: Ultra Rare Attack: 3000 Defense: 2500 This card can only be Special Summoned by removing 1 LIGHT and 1 DARK monster in your Graveyard from play. Pay 1000 of your Life Points to send all cards in both players'' hands and on the field to the Graveyard. Inflict 300 points of damage to your opponent''s Life Points for each card that is sent to the Graveyard by this effect.