Engineered Explosives (Ultimate Masters)

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.

NM - $5.50
LP - $4.50
MP - $3.50
HP - $2.50
DMG - $1.50