This staff has a cluster of eyeballs attached to it which have been preserved using
Unrelenting Gaze
As an action you can activate this staff, causing the eyes to open. When you do so choose an outlined undead within 120 feet of you, or a creature you can see within 60 feet of you. The target creature must make a DC 16 Wisdom saving throw. On a failed saving throw it takes 3d8 psychic damage and is Frightened of you until the end of its next turn. If the creature is an undead it is Stunned until the end of its next turn instead of Frightened. On a successful saving throw the creature is not affected.