Anger of the Earth

You create a violent tremor with a 10ft radius at a point within 50ft. All creatures in the area must make Dexterity saving throws. On a failure, they take 1d6 bludgeoning damage and are knocked prone; on a success, they only take half damage. The area becomes difficult terrain.

At Higher Levels. When you cast this spell using a spell slot of 3rd level or higher, increase the damage by 1d6 and the radius by 5ft for each spell level above 2nd.