Charcoal Diamond [Foil] is a card from the Commander Legends set of Magic: The Gathering, classified as an Unknown rarity. Currently valued at $0.68, this card serves as a mana source within the game, allowing players to generate black mana. Its foil treatment adds a layer of visual appeal, potentially attracting collectors who appreciate variant versions. As part of the broader Commander format, it holds relevance in both gameplay and collectible markets.