Mox Amber (Retro Schematic) [The Brothers' War Retro Artifacts] Human Set: Arabian Nights Type: Artifact

Set: Arabian Nights Type: Artifact Rarity: Rare Cost: {3} {2}

or I shall master it for you

Set: Amonkhet Invocations Type: Instant Rarity: Mythic Cost: {1}{U} You may return an Island you control to its owner's hand rather than pay this spell's mana cost

If it's a non-token Light card

" —Tazri

Mox Amber (Retro Schematic) [The Brothers' War Retro Artifacts] Human Set: Arabian Nights Type: ArtifactSet: The Brothers' War Retro Artifacts Type: Legendary Artifact Creature 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