Cinderflash

 You cast out cinders and pieces of burning material, igniting it all at once in a thunderous, flashing display of heat. Creatures within 20ft of a point you can see must make a Dexterity Saving Throw. On a successful save a creature affected by this spell is Deafened for 2 rounds; on a failed save a creature affected by this spell is Blinded and Deafened for 4 rounds.