Censer of Supplication

Wondrous item, uncommon

When a drop of blessed oil is put in this censer, it becomes capable of burning for up to an hour. It emits a light, ground-hugging smoke in a 10-foot radius during that time.

This smoke, while clearly noticeable, is too light to serve as concealment. Anyone who prays or meditates within that smoke for one minute gains a +2 bonus to Constitution saving throws for concentration for the next hour. A creature can only gain this benefit once per 24 hours, even from multiple censers.