Chaos Emperor Dragon - Envoy of the End (UTR) (DPKB-EN016) - Duelist Pack: Kaiba Unlimited Number_FOTB-EN026 Card TextWhen there is a

Card TextWhen there is a monster on your opponent''s side of the field after this monster''s first attack of your Battle Phase

Card TextBefore damage calculation

this card gains 1000 ATK unti

ATK / DEF900 / 900

take control of that opponent's monster

Chaos Emperor Dragon - Envoy of the End (UTR) (DPKB-EN016) - Duelist Pack: Kaiba Unlimited Number_FOTB-EN026 Card TextWhen there is aTypeDragon Effect Monster AttributeDARK Level Rank8 ATK DEF3000 2500 Card TextThis 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; send all cards in both players' hands and on the field to the Graveyard, then inflict 300 damage to your opponent for each card sent to the Graveyard by this effect. Note: This card was errata'd