Prometheus, King of the Shadows [FOTB-EN063] Secret Rare XY64 Set: EX: Crystal Guardians Type:

Set: EX: Crystal Guardians Type: Colorless Rarity: Uncommon Retreat cost: Colorless

Set: Elemental Hero Collection 2 Card type: Fusion/Effect Monster Rarity: Secret Rare Attack: 2400 Defense: 1500 "Elemental HERO Sparkman" + "Elemental HERO Clayman" This monster cannot be Special Summoned except by Fusion Summoned

Set: XY: Evolutions Type: Psychic Rarity: Promo Retreat cost: Colorless

Set: EX: Sandstorm Type: Grass Rarity: Holo Rare Retreat cost: Colorless

also is destroyed during the End Phase

Prometheus, King of the Shadows [FOTB-EN063] Secret Rare XY64 Set: EX: Crystal Guardians Type:Set: Force of the Breaker Card type: Effect Monster Rarity: Secret Rare Attack: 1200 Defense: 800 When you Normal Summon this card, remove from play any number of DARK monsters in your Graveyard. This card gains 400 ATK for each removed card, until the End Phase of this turn.