Banshee's Wail

You let out a deafening, discordant scream, affecting all creatures in a 30-foot cone. Each creature in that cone must make a Constitution saving throw, or it takes 6d6 thunder damage and is deafened until the end of your next turn. On a success, a creature takes half as much damage, and is not deafened.

A creature that is deafened automatically succeeds this save.

At higher levels. When you cast this spell using a spell slot of 4th level or higher, the damage increases by 1d6 for each slot level above 3rd.