Judgment Dragon (DUSA-EN070) [Duelist Saga]

Cannot be Normal Summoned/Set. Must be Special Summoned (from your hand) by having 4 or more "Lightsworn" monsters with different names in your Graveyard, and cannot be Special Summoned by other ways. You can pay 1000 Life Points; destroy all other cards on the field. During each of your End Phases: Send the top 4 cards of your Deck to the Graveyard.