Banshee's wail

This attack takes the form of a mournful wail. This wail has no effect on constructs and undead. All other creatures within 30 feet of her that can hear her must make a DC 13 Constitution saving throw. On a failure, a creature drops to 0 hit points. On a success, a creature takes 3d6 psychic damage. This spell can be used once per day, and it resets at dawn.