The earth around you begins to ripple, and a directed shock wave of tectonic force is released that shoots through the ground.
You cause the ground to shake along a 30-foot line originating from you and extending in any direction you indicate. Any creature caught standing within the area must make a Dexterity saving throw or fall prone. Any creature that was concentrating on a spell and fails this saving throw immediately breaks concentration.
For this spell's duration, you may apply this effect as a bonus action on each of your turns.