Alpha's Spark Shower

The caster extends their arms and a summons a sheet of sizzling purple sparks. These shoot forth from their hands, causing each creature in a 10-foot cone to make a Dexterity saving throw. On a failed save, they take 1d6 lightning damage.

Leveling: This spell does an additional 1d6 lightning damage when the caster reaches 5th level (2d6), 11th level (3d6), and 17th level (4d6).