Engineered Explosives is a mythic Artifact card from Ultimate Box Topper (PUMA), collector number U28. Current market price: — (foil $16.08), TCGplayer market prices via Scryfall.
Sunburst (This artifact enters with a charge counter on it for each color of mana spent to cast it.) {2}, Sacrifice this artifact: Destroy each nonland permanent with mana value equal to the number of charge counters on this artifact.