{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
![Mox Amber (Retro Schematic) [The Brothers' War Retro Artifacts]](http://www.cardmerchanttakapuna.co.nz/cdn/shop/products/0e3642ca-12b7-59e7-90a6-b5f748a5486a_acb580d6-2a66-4224-aebf-894d1f68c68c.jpg?v=1698538161&width=1445)