Unmasked Horror. As a bonus action, you can remove your mask. Creatures of your choice within 10 feet of you that can see you must succeed on a Wisdom saving throw or become frightened of you until the end of your next turn. The DC of the save equals 8 + your proficiency bonus + your Charisma modifier. Once you use this trait, you can't use it again until you finish a short or long rest. Creatures who have already been subjected to this ability have advantage on the saving throw.