Demonic Mask (5e Equipment)

Wondrous item, uncommon (requires attunement)

This horrifying-looking mask is something that'll make common folk want to run away from when they see it. While you wear this mask, you have advantage on Charisma (Intimidation) checks and if you aren't proficient with the Intimidation skill, you get proficiency with it. As a bonus action, you can cast the fear spell if you can see the creatures you are targeting.
Once you use this property of the mask, you can't use it again until the next dawn.

Curse. This item is cursed, a fact that is only revealed when an identify spell is cast on it or you attune to it. Attuning to it curses you until you are targeted by the remove curse spell or similar magic. Removing the mask fails to end the curse on you. You have disadvantage on Charisma (Persuasion) checks.