The hierophant lich threatens one creature within 10 feet of it with eternal suffering. The target must succeed on a DC 17 Wisdom saving throw or become frightened for 1 minute. The target can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success. If a target's saving throw is successful or the effect ends for it, the target is immune to the hierophant lich's Damnation for the next 24 hours.