Cruel Wind

A cruel wind blows as the blood flows, screaming a lullaby.
You wave your hands and call forth an unspeakable wind. All creatures within range other than you must make Constitution saving throws at the start of each of their turns. If they fail, they take 6d6 cold damage. If a creature dies while within range, they let loose a terrible scream. Each creature within 30 feet of the dying creature must make a Charisma saving throw. If they fail, they take 4d6 psychic damage.