Engineered Explosives [Ultimate Masters] Enchantment Creature If you don't or can't

If you don't or can't make an exchange

Set: Antiquities Type: Artifact Rarity: Uncommon Cost: {1} {T}

Set: Seventh Edition Type: Land Rarity: Rare Whenever City of Brass becomes tapped

Set: Dark Ascension Type: Legendary Artifact — Equipment Rarity: Mythic Cost: {7} Equipped creature gets +1/+0

"Their appendages are sharper than our swords and quicker than our bows

Engineered Explosives [Ultimate Masters] Enchantment Creature If you don't or can'tSet: Ultimate Masters Type: Artifact Rarity: Rare 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 mana value equal to the number of charge counters on Engineered Explosives.