Engineered Explosives [Ultimate Box Topper] Green Exile a creature you control:

Exile a creature you control: Put a storage counter on City of Shadows

These draw mana from every region and welcome all living things into its verdant chambers

Set: Aether Revolt Type: Artifact Creature — Shapeshifter Rare Cost: {2} As Metallic Mimic enters the battlefield

Set: From the Vault: Realms Type: Land Mythic Cost: {T}: Add {U}

Engineered Explosives [Ultimate Box Topper] Green Exile a creature you control:Set: Ultimate Box Topper Type: Artifact Mythic Cost: {X} Sunburst (This enters the battlefield with a charge counter on it for each color of mana spent to cast it.) {2}, Sacrifice Engineered Explosives: Destroy each nonland permanent with converted mana cost equal to the number of charge counters on Engineered Explosives.