Mox Amber (Retro Schematic) (Serialized) [The Brothers' War Retro Artifacts]

Set: The Brothers' War Retro Artifacts Type: Legendary Artifact Rarity: Mythic Cost: {0} {T}: Add one mana of any color among legendary creatures and planeswalkers you control. "A crystallized moment in time from the Mending Era, first discovered during the Ice Age. A temporal conundrum, even to the great scholar himself." —*The Discoveries of Feldon*