You cause the skull to shape and configure itself around your head, transforming into a crown, helm, or other facial protection in a design of your choice. For the duration of the spell, you can’t be charmed or frightened by undead, you are immune to poison and disease, and undead sense your connection to death and become hesitant to attack you or cause you harm. When an undead creature attacks you, that creature must make a Wisdom saving throw. On a failed save, the creature must choose a different target, or the attack automatically misses. On a successful save, the creature is immune to this effect for 24 hours. The creature is aware of this effect before it makes its attack against you.