Thunder Burst 2014

You create a concussive pulse, producing a boom audible out to 300 feet. All other creatures within 5 feet of you must succeed on a Constitution saving throw or take 1d8 thunder damage and be deafened until the end of its next turn.

The spell's damage increases by 1d8 when you reach 5th level (2d8), 11th level (3d8), and 17th level (4d8).