Gandora the Dragon of Destruction (MIL1-EN005) [Millennium Pack]

Cannot be Special Summoned. You can pay half your LP; destroy as many cards on the field as possible (other than this card), and if you do, banish them. This card gains 300 ATK for each card destroyed this way. During the End Phase of the turn this card was Summoned: Send it to the Graveyard.