The Ring of Truth (Wondrous Cursed Item, Very Rare, Requires Attunement) 

Description: The ring of truth is a delicate ring of a single gold and silver band that are twisted together. It has no gemstone and is pretty but unremarkable in appearance.

The ring of the truth has the following abilities:

Heart’s Truth: The bearer can see the moral nature of those around them. As a bonus action, the bearer can choose to see the aura of another creature. Evil creatures will glow red. Good creatures will glow blue. Neutral creatures will glow green. Non-sentient creatures or objects do not glow at all.

Truthseeker: The bearer automatically succeeds on Insight checks when determining if a creature is telling the truth. The bearer can see through illusions and gains advantage on Perception checks to spot disguises.

Truthteller: The bearer automatically fails on Deception checks that involve a lie, even a lie by omission. They must tell the truth if someone asks them a question. 

The Truth Hurts: Any attempt by the bearer to lie, conceal the truth, or avoid a direct question will result in a severe nose bleed and 1d6 irreducible bludgeoning damage. In addition, the bearer cannot cast any spell from the school of illusion or use any magical item that has illusory powers.

Attunement: In order to attune to the ring of truth, the bearer must speak two truths and a lie out loud while wearing it. This doesn’t have to be intentional and the true and false statements can be said at any time. Once attuned, the bearer cannot remove the ring unless they spend one full day without hearing or telling a single lie. Another way to break attunement is to enter a Zone of Truth, which will make the ring ethereal. The ring will remain ethereal until retrieved by a creature in the ethereal plane that can materialize.

Destroying the Ring of Truth: While truth cannot be destroyed, the ring can. It can be destroyed from 20 points of damage dealt by a level 5 spell or higher.

Story Hooks:

• The players are required to sneak into a party of nobles by pretending to be wealthy aristocrats. One of the players puts on the ring of truth as part of their disguise and inadvertently attunes to it.
• A con artist named Don Miguel Batswan was tricked into attuning to the ring by one of his many lovers. Now he can’t get it off and needs help removing it.
• The players have been invited to a wedding and the mother of the bride suspects that the groom is cheating on her daughter. She wants the players to get him to wear the ring and attune to it. During the ceremony, she will loudly denounce the groom and ask him whether he is cheating but to her surprise he is not and actually really wants to marry the young lady.
• A famous wizard has died and his estate is being auctioned off. One of the items for sale is a ring of truth. The auctioneer, a halfling named Daisy Loudstamp, has discovered that the ring has been stolen and replaced by a fake. She needs the players to discreetly discover the thief without alerting the town so that the thief doesn’t flee. The thief is really Guy Ramcap, the local sheriff, who took the ring in the hopes of becoming a better law officer.
• The players come across the ghost of an old woman who desperately wants to give them her ring. It’s a ring of truth. The old lady is not a nice ghost.