Chaos Emperor Dragon - Envoy of the End [DPKB-EN016] Ultimate Rare Tuner Monster you must select the Toon

you must select the Toon Monster as an attack target

Set: 2015 Mega-Tins Mega Pack Card type: Xyz/Effect Monster Rarity: Super Rare Attack: 2900 Defense: 2400 4 Level 5 LIGHT monsters If this face-up card would be destroyed

except "Defender of Nephthys"

you must Tribute 3 Dragon-Type monsters

Set: World Championship 2010 Card Pack Card type: Normal Monster Rarity: Rare Attack: 750 Defense: 800 An ill-mannered field varmint that will sink its teeth into anything

Chaos Emperor Dragon - Envoy of the End [DPKB-EN016] Ultimate Rare Tuner Monster you must select the ToonSet: Duelist Pack: Kaiba Card type: Effect Monster Rarity: Ultimate Rare Attack: 3000 Defense: 2500 This card cannot be Normal Summoned or Set. This card can only be Special Summoned by removing from play 1 LIGHT and 1 DARK monster in your Graveyard. You can pay 1000 Life Points to send all cards in both players' hands and on the field to the Graveyard. Inflict 300 damage to your opponent for each card sent to the Graveyard by this effect.