Crystal Wail

You give a piercing scream that vibrates in a 40-foot radius sphere centered on you.  Unattended crystal or glass items in the area take 7d6 thunder damage.  Each creature in this area must make a Constitution saving throw.  A creature takes 7d6 thunder damage and is deafened on a failed save.  On a successful save, a creature takes half damage and is not deafened.

A deafened creature can repeat the saving throw at the end of each of its turns, ending the effect on a success.

At Higher Levels. When cast using a spell slot of 5th-level or higher, the spell deals an additional 1d6 damage per spell level above 4th.