Hallowed

A creature that has been blessed by a deity or celestial might receive the hallowed condition. Being hallowed can last between 24 hours to one week.

While a creature has the hallowed condition, they are immune to being charmed, frightened, or possessed by the following creature types: fey, fiends, and undead. In addition, a hallowed creature may add 1d4 to any attack, ability check or saving throw.