Crushing Doughnut

You target a creature within 30 feet of you, and divine energy surrounds them taking form of a doughnut. The target must make a constitution saving throw, and on a failed save they take 2d10 bludgeoning damage, and are considered grappled. On a success they take half the damage and the spell ends.

At the start of the targeted creature's turns it takes another 1d10 bludgeoning damage, then can make another constitution saving throw to end the spell.