Thunderburst

As a standard action, you can create a blast of air accompanied by a loud peal of thunder. The blast has a range of 100 feet and has a 20-foot radius, increasing by 5 feet for every 4 oracle levels after 7th. Creatures in the area take 1d6 points of bludgeoning damage per oracle level and are deafened for 1 hour, with a Fortitude save resulting in half damage and no deafness. You must be at least 7th level to select this revelation. You can use this ability once per day, plus one additional time per day at 11th level and every four levels thereafter.