Engineered Explosives [Ultimate Masters] Diamond and Pearl Whenever Cockatrice blocks or becomes

Whenever Cockatrice blocks or becomes blocked by a non-Wall creature

When Serra Avatar is put into a graveyard from anywhere

and blue and white

This attack does 170 damage to 1 of your opponent’s Pokémon

"I see something special in you—a bright ember that yearns to dance among the stars

Engineered Explosives [Ultimate Masters] Diamond and Pearl Whenever Cockatrice blocks or becomesSet: 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.