Acrid Barrage

Frequency once per round

Effect Each enemy in your aura takes 5d6 (6d6 at level 15, 7d6 at level 18) acid plus 2d6 persistent acid damage with a basic Reflex save against your class DC or spell DC, whichever is higher. The initial damage increases to 6d6 at 15th level and 7d6 at 18th level.