Poisonous exhalation

Poisonous exhalation is a spell of the conjuration school used by sorcerers, particularly dragon sorcerers. When it is cast, poisonous exhalation causes the sorcerer casting it to breath out a billowing mist of poisonous gas that saps the endurance of creatures caught within. Dragon sorcerers off sap their enemies still further, to a degree dependent on their own physical strength. Poisonous exhalation is not particularly difficult to cast, requiring only a short rest from its user before it can be recast.