Alpha's Spark Shower

You extend your arms and a sheet of sizzling sparks shoot forth from your hands. Each creature in a 10-foot cone must make a Dexterity Saving Throw, taking 1d6 lightning damage on a failed saving throw.

At Higher Levels. This spell does additional damage when you reach 5th level (2d6), 11th level (3d6) and 17th level (4d6).