You can will the smoke from your censer to expand and contract. When you light your censer, you can choose the size of the smoke emanation: 10 feet, 15 feet, or 20 feet. In addition, the first time each round an enemy Casts a Spell or takes a linguistic action while within the emanation, they possibly choke on the smoke. They must attempt a Fortitude saving throw against your class DC or become Sickened 1 (Sickened 2 on a critical failure). The target of your Exploit Vulnerability takes a –1 status penalty to this save. This is an inhaled poison effect.