Andrew's "Aight Dudes!"

You put the baseball cap on backwards, clap your hands together and yell "Aight dudes!" at a deafening volume. Every creature within a 120 foot sphere centered on you must make a DC 20 Constitution saving throw, taking 10d12 thunder damage and becoming deafened for 1 minute on a failed save, or take half as much damage and not be deafened on a successful one. A creature with the deafened condition is immune to this spell.