Earthen Grasp

You cause the ground in a 5-meter radius to reshape itself until the end of your next turn. Each creature in that area must succeed on a STR Save against your INT Check or become Immobilized and take INT Bonus Crushing damage. A restrained creature can use its action to make a STR Check against your INT Check to escape. The area becomes Difficult Terrain for the spell's duration. You can use a Bonus Action on subsequent turns to sustain the effect.