race features:
Bellow and Croak. You have an uncanny ability to produce a powerful song from deep within. As an action, each chosen creature within 30 feet of you that can hear the song must make a Wisdom saving throw, taking 2d8 psychic damage on a failed save, or half as much damage on a successful one. The DC for this save is equal to 8 plus your Constitution modifier plus your proficiency modifier. A creature that fails this saving throw also has disadvantage on Constitution saving throws until the end of its next turn. The damage increases to 3d8 at 6th level, 4d8 at 11th level, and 5d8 at 16th level.
After using this ability, you can't use it again until you complete a short or a long rest.