Overcast

Effect: Exhaustion is not a condition because it is not targeted by skills that target conditions! It is currently only self-imposed by some elementalist skills. The effect of exhaustion comes when you started casting a skill, it will stay if the skill gets interrupted. While exhausted, the elementalist has her maximum energy supply reduced by 10. The right end of the energy bar is greyed out. This loss will be regenerated at a rate of 1 point every 3 seconds. Unlike the other conditions listed here, exhaustion does stack; if you cast several skills that cause Exhaustion in succession, your maximum energy supply will become severely reduced. Exhaustion can go above your energy max so that your bar is more than 100% greyed out?

Sources: Chain Lightning, Windborne Speed, Gale, Obsidian Flame, Iron Mist, Earthquake, Meteor Shower, Meteor.

Removal: Natural regeneration at +1 per 3 seconds. | Death?

Prevention: Glyph of Energy