Vile Censer

Wondrous item, uncommon

While holding this censer, as a bonus action you may cause it to emanate a green haze that is toxic to inhale. Creatures that start their turn or enter the area within 10 feet of you for the first time on their turn take 2d6 poison damage. If a creature ends their turn within 10 feet of you, they must make a DC 15 Constitution saving throw or gain the poisoned condition. Creatures that are unable or do not need to breathe are immune to this damage. You are immune to the effects of the censer. The censer continues to emanate the gas for one minute or until you disable it as a bonus action.