"Darkness [Surge Foil]" is a card from the Magic: The Gathering Warhammer 40,000 set, classified as an Unknown rarity (#197). Currently valued at $16.72, it attracts collectors for its unique artwork and thematic ties to the Warhammer universe. As demand fluctuates, its market value reflects the ongoing interest in crossover sets and the collectible nature of foil cards. Grading may influence future prices as collectors seek well-preserved versions.