You may activate and quench your elemental assault ability multiple times per day.
Benefits: You may use your elemental assault ability in 1-round increments, up to a maximum number of rounds per day equal to your character level. These rounds do not have to be consecutive. Activating the ability is a swift action; ending it is a free action.
Normal: You can use elemental assault once per day. It lasts a number of rounds equal to your class level.