Prometheus, King of the Shadows [FOTB-EN063] Secret Rare SL2 Once per turn: You can

Once per turn: You can target 1 "Vylon" monster in your Graveyard

you can halve this card's ATK (permanently)

Set: Kids WB Promos Type: Water Rarity: Promo Retreat cost: Colorless

then add them to your Deck and shuffle it

Set: League & Championship Cards Type: Water Rarity: Promo

Prometheus, King of the Shadows [FOTB-EN063] Secret Rare SL2 Once per turn: You canSet: 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.