xArtifact

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 converted mana cost equal to the number of charge counters on Engineered Explosives.

In Lorwyn's brief evenings, the sun pauses at the horizon long enough for a certain species of violet to bloom with the fragrance of mischief.