Initiation Time: 1 action
Range: Self (30-foot radius)
Duration: Instantaneous
You strike the ground, creating a burst of erupting earth that ripples outward from you. Each creature you choose within 30 feet of you must succeed on a Constitution saving throw or take 3d6 bludgeoning damage and 3d6 thunder damage and be knocked prone. A creature that succeeds on its saving throw takes half as much damage and isn't knocked prone.
At Higher Levels. When you initiate this form at a higher level, the bludgeoning damage or thunder damage (your choice) increases by 1d6 for each level above 4th.