Wondrous Item
Legendary Requires Attunement
Mask of Oniborne Dormant
While wearing the Mask of Oniborne in its dormant state, you gain the following benefits:
While wearing the Mask of Oniborne you have advantage on Charisma (Intimidation) checks.
Inspire Fear. When a creature within 30 feet of you that you can see takes damage from an attack, as a reaction you can force the creature to make a Wisdom saving throw (save DC 13). On a failure, the creature takes 1d8 psychic damage and is frightened of you until the end of your next turn. You can use this property a number of times equal to your proficiency bonus, and you regain all expended uses when you finish a long rest.
Mask of Oniborne Awakened
When the Mask of Oniborne reach an awakened state, you gain the following benefits:
The save DC of your Inspire Fear feature increases to 15 and the damage increases to 2d6.
Change Size As an action, you can cast the enlarge/reduce spell from the mask on yourself, with a duration of 10 minutes. While concentrating on this spell, you have advantage on constitution saving throws to maintain your concentration. You can't use this property again until you finish a long rest.
Mask of Oniborne Exalted
When the Mask of Oniborne reach an exalted state, you gain the following benefits:
The save DC of your Inspire Fear feature increases to 17.
While you are under the effect of the enlarge/reduce spell cast from the mask, your regain 5 hit points at the start of your turn.
Unending Hunger. When you reduce a creature to 0 hit points with an attack, you can choose to consume a portion of its corpse. You gain temporary hit points equal to your character level. You can't use this property again until you finish a long rest.
Sentience. Mask of Oniborne is a sentient lawful evil artifact with an Intelligence of 18, a Wisdom of 16, and a Charisma of 20. It has hearing and darkvision out to a range of 120 feet. The artifact communicates telepathically with its wielder and can speak, read, and understand Common, and Giant.
Personality. A fearsome oni named Gozu lives within Mask of Oniborne. The legendary artifact desires only to taste human flesh and pushes its wielder to partake in sampling humanoids slain in combat.