Darkness Energy (121/123) [HeartGold & SoulSilver: Base Set] The Biggest Set: EX: Ruby & Sapphire

Set: EX: Ruby & Sapphire Type: Water Rarity: Ultra Rare Retreat cost: Colorless

Set: Ixalan Prerelease Promos Type: Land Rarity: Rare Drowned Catacomb enters the battlefield tapped unless you control an Island or a Swamp

Set: Sun & Moon: Detective Pikachu Type: Water Rarity: Holo Rare Retreat cost: Colorless

Set: Eternal Masters Type: Sorcery Rarity: Rare Cost: {X}{G} Search your library for a green creature card with mana value X or less

Set: Sun & Moon: Base Set Type: Colorless Rarity: Promo Retreat cost: Colorless

Darkness Energy (121/123) [HeartGold & SoulSilver: Base Set] The Biggest Set: EX: Ruby & SapphireSet: HeartGold & SoulSilver: Base Set Type: Energy Rarity: Common