Bead of Blasting

A small bead of concentrated sound travels from your hand to a point within range that you select, where it explodes in a 15-foot-radius sphere. Each creature in the radius takes 5d8 thunder damage and is deafened for 1 minute, or takes half damage and is not deafened with a successful Constitution saving throw. Enhancement: For each spell slot used higher than 4th level, bead of blasting does an additional 1d8 damage.