Name: Obsidian Obelisk Cost: 2 CMC: 2 Color: CID: Type: Artifact Rules Text: This artifact enters tapped. {T}: Add {C}. {T}: Add one mana of any color. Spend this mana only to cast a multicolored spell. Set/Rarity: Dominaria United Commander rare Legality: Legal in legacy, Legal in vintage, Legal in duel, Legal in oathbreaker, Legal in commander Price: $0.57