Thunder Blast

You fire a miniature, concentrated shockwave from your outstretched palm in a 25 ft. Cone. Each target in that area must make a Dexterity saving throw, taking 2d10 thunder damage and be deafened for 1 minute on a failed save, or half as much damage and no other effects on a success. 

Using a Higher-Level Spell Slot. The damage increases by 1d10 for each spell slot level above 2.