Engineered Explosives [Ultimate Masters] Elemental Horse When Hunted Phantasm enters the

When Hunted Phantasm enters the battlefield

When Avalanche Riders enters the battlefield

You may then have that player shuffle that library

Set: Odyssey Type: Artifact Creature — Golem Rarity: Rare Cost: {4} Junk Golem enters the battlefield with three +1/+1 counters on it

Engineered Explosives [Ultimate Masters] Elemental Horse When Hunted Phantasm enters theSet: 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.