Cosmic drum

You call a beam of pure arcane energy, that roars down from the cosmos in a location you specify. Each creature in a 5-foot-radius, 30-foot high cylinder, on a point within range must make a Dexterity saving throw. A creature takes 3d6 force damage and 3d6 thunder damage on a failed save, or half as much damage on a successful one.
At Higher Levels. When you cast this spell using a spell slot of 3rd level or higher, the force damage or the thunder damage (your choice) increases by 1d6 for each slot level above 3rd