Shield of the Millennium Dynasty (Quarter Century Secret Rare) [INFO-EN003] Quarter Century Secret Rare Elemental if a "Sinister Serpent" exist

if a "Sinister Serpent" exist in your Graveyard

Set: Neo Destiny Unlimited Type: Psychic Rarity: Holo Rare

and/or an effect that Special Summons a monster(s) and destroy those cards

And you can add some of the best Spell Cards in the game to your collection and your Deck

gain 1 [Life]

Shield of the Millennium Dynasty (Quarter Century Secret Rare) [INFO-EN003] Quarter Century Secret Rare Elemental if a "Sinister Serpent" existSet: The Infinite Forbidden Card type: Effect Monster Rarity: Quarter Century Secret Rare Attack: 0 Defense: 3000 Cannot be destroyed by Spell Trap effects. You can only use each of the following effects of "Shield of the Millennium Dynasty" once per turn. If this card is in your hand: You can place it in your Spell & Trap Zone as a face up Continuous Spell. While this card is a Continuous Spell: You can either pay 2000 LP, or reveal 1 "Millennium