Astral Storm

Create a 30-ft. radius storm of astral force centered on a point within range. The area is difficult terrain for enemies. When a creature enters the area for the first time on a turn or starts its turn there, it must make a WIS save, taking 36 (8d8) psychic damage on a failed save, or half as much on a success. On a failed save, the creature also cannot take Reactions until the start of its next turn.