Engineered Explosives [Ultimate Masters] Treefolk Warrior you may pay {U}{U}{U}

you may pay {U}{U}{U}

The player plays that card if able

Set: Unlimited Edition Type: Artifact Creature — Beast Rarity: Rare Cost: {6} Clockwork Beast enters the battlefield with seven +1/+0 counters on it

Set: Urza's Destiny Type: Enchantment Rarity: Rare Cost: {1}{B}{B} {B}

Engineered Explosives [Ultimate Masters] Treefolk Warrior you may pay {U}{U}{U}Set: 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 converted mana cost equal to the number of charge counters on Engineered Explosives.