Engineered Explosives is a rare Artifact card from Modern Masters (MMA), collector number 204. Current market price: $6.88 (foil $10.26), 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.