Soulstorm

Summon screaming souls in a 30-ft. radius sphere centered on a point within range. Creatures of your choice in the area must make a CHA save, taking 45 (10d8) psychic damage on a failed save, or half on a success. Once per turn when a creature dies in the storm, one creature you choose in the storm regains 18 (4d8) hit points or gains advantage on its next d20 test before the end of its next turn.