Death Chirp

Prerequisite: Luni

• Increase your Constitution score by 1, up to a maximum of 20.
• You can use an action to emit a high pitched sound in a 15-foot radius around you. Each creature in that area must make a Constitution saving throw (DC = 8 + your Constitution modifier + your proficiency bonus). On a failed save, the creature takes 1d8 thunder damage, loses concentration on a spell it is currently concentrating on and is deafened until the end of its next turn. On a successful save, the creature only takes half as much damage, is not deafened, and doesn't immediately lose concentration on a spell it is currently concentrating on. This damage increases by 1d8 when you reach 5th level (2d8), 11th level (3d8), and 17th level (4d10).
• You can use your Death Chirp a number of times equal to your proficiency bonus, and you regain all expended uses when you finish a long rest.