Prometheus, King of the Shadows [FOTB-EN063] Secret Rare BW74 you can destroy 1 Spell/Trap

you can destroy 1 Spell/Trap on the field

Set: Cybernetic Horizon Card type: Ritual/Effect Monster Rarity: Rare Attack: 2900 Defense: 3000 You can Ritual Summon this card with "Cycle of the World"

Set: Diamond & Pearl: Mysterious Treasures Type: Grass Rarity: Common Retreat cost: Colorless

When any "Harpie Lady" or "Harpie Lady Sisters" are Normal or Special Summoned: The player who conducted the Summon targets 1 Spell/Trap Card on the field

Prometheus, King of the Shadows [FOTB-EN063] Secret Rare BW74 you can destroy 1 Spell/TrapSet: 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.