Restless Eye

Wondrous item, rare, cursed (requires attunement)

This fleshy, evil-looking eye is the Third Eye of a fallen morvudd or chort. The eye merges with your forehead, blinking and staring independently from your eyes. The eye has 3 charges, and it regains 1d3 expended charges daily at dawn. You can use an action to expend 1 of its charges to cast the eyebite spell at DC 15 from it. Additionally you gain proficiency with the Wisdom (Perception) skill or gain advantage on this roll if you are already proficient.

Curse. The eye is cursed: a fact that is revealed only when an identify spell is cast on the eye or you attune to it. Attuning to the eye curses you until you are targeted by the remove curse spell or similar magic; extracting the eye — a dangerous operation — fails to end the curse. While cursed, if you have a neutral or good alignment, each long rest you must succeed on a DC 18 Charisma saving throw, suffering from a short- term madness (p. 259 of the Dungeon Master Manual) on a failed save. If the save fails by 5 or more, you also suffer from a long-term madness. The short-term and long-term madnesses can be ended with the greater restoration spell or similar magic.

Optional: Curse of the Restless Eye

When a morvudd dies, the nearest intelligent creature to its body must make a DC 18 (DC 15 for a chort) Wisdom saving throw. In case of failure, the creature gains a form of indefinite madness: "I must keep the eye at all cost; it's now my most treasured possession".