Chaos Emperor Dragon - Envoy of the End [DPKB-EN016] Ultimate Rare

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.