Set item layout:

Mask of the Demogorgon

wondrous item (headgear), very rare (requires attunement)

This black iron mask bears the likeness of Demogorgon, the Prince of Demons. It has horn-like protrusions on each side that curve outward and a mouth that can open and close with a snap.

Intimidating Presence

You have advantage on Charisma (Intimidation) checks against creatures that can see your fearsome visage.

Psychic Blast

As an action, you can open the mask’s mouth and unleash a blast of psychic energy in a 60-foot cone. Each creature in that area must make a DC 17 Intelligence saving throw. On a failed save, a creature takes psychic damage and is stunned until the end of your next turn. On a successful save, a creature takes half as much damage and isn’t stunned. Once you use this feature, you can’t use it again until you finish a long rest.

Fearless

You are immune to being frightened.

Curse

The mask is cursed and binds to you when you attune to it. While attuned to the mask, you have disadvantage on Wisdom saving throws and ability checks. Additionally, whenever you take damage while wearing the mask, you must succeed on a DC 13 Wisdom saving throw or lose control of your actions. While out of control, you must use your action each round to attack the nearest creature other than yourself that you can see. If there is no creature within reach, you must use your movement to get closer to one. You can repeat the saving throw at the end of each of your turns, ending the effect on a success.

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Lore

The Mask of the Demogorgon is a relic of ancient times, when the Abyss was young and the Prince of Demons was still rising to power. It is said that the mask was forged by a cult of fanatical followers who sought to emulate their master’s appearance and abilities. They used dark rituals and forbidden magic to infuse the mask with a fragment of Demogorgon’s essence, hoping to gain his favor and protection.

However, the mask proved to be more than they could handle. The mask’s curse corrupted their minds and drove them to madness and violence. They turned on each other, slaughtering their fellow cultists in a frenzy of bloodlust. The mask fed on their pain and fear, growing stronger and more malevolent with each death.
Eventually, the mask was lost in the chaos of the Abyss, where it remained for centuries, until it was discovered by a group of adventurers who ventured into the depths of the plane. They were drawn to the mask by its power and mystery, unaware of its true nature. They attuned to the mask, hoping to use it as a weapon against their enemies. But they soon realized their mistake, as the mask took over their wills and forced them to serve its twisted agenda.
The mask’s current whereabouts are unknown. Some say it is still in the Abyss, waiting for a new host to claim it. Others say it has found its way to the Material Plane, where it seeks to spread Demogorgon’s influence and chaos. Some even say that the mask is trying to reunite with its creator, and that whoever wears it will become an avatar of the Prince of Demons himself.

Tags:actionadvantagecurseddisadvantagefiendfrightenedimmunityintimidationpsychicsaving throw