Cry of the Spirits (Islands of Sina Una)

You cry out to the spirits, gathering their power into a whirling 30-foot sphere centered at a point you can see within range. Each creature within the sphere must make a Dexterity saving throw, taking 12d6 force damage on a failed save, or half as much damage on a successful one.

Additionally, any creature reduced below a hit point threshold equal to ten times your spellcasting ability modifier as a result of this spell is immediately incapacitated.