Black Powder

A cloud of black powder flows out of your sleeves and with a snap of your fingers a spark ignites the powder. Each creature in a 15-foot cone must make a Dexterity saving throw. A creature takes 4d6 fire damage on a failed save, or half as much damage on a successful one.

At Higher Levels. When you cast this spell the damage increases by 1d6 for each slot level above 2nd.