>Necromantic Earring of Eternal Debt
An earring used by a BBEG to enslave an innocent kid to do his bidding.
Comes from a setting where revive spells is out, Wish can allow you to revive once, and then never again, anything else that revives, has a very steep penalty to it.
This was one of them. These can be attached to a dead body, which immediately comes back to life. The target can never make an action of any kind that would directly or indirectly harm the owner of the earring (can be more than 1, changed with a 1 hour ritual as long as no one is wearing the earring. Furthermore, the earring is immune to any attempts at dispelling the magic is contains.
The bearer must remain within 200 meters of 1 of the owners, and going outside will make them unable to use any spells, make them sick, and gradually makes them feel worse and worse, until they are just a bundle of suffering.
The owner can issue Commands as per the spell, but as a free talking action every turn, it has no restrictions, and doesn't allow saves. It works even if the bearer cannot hear the owner.
See, my players are psychopaths, so when they found it, 2 of them (Fighter and a Warlock) immediately attuned to it, because "might come in handy".
Turns out the poor Bard, who was super afraid of the earring, got killed during the fight against the necromancer who originally created the earring. The players found records of how the earring worked, and immediately put them on the Bard.
They have had a lot of fun with it so far. The Bard, not so much. Mostly tormenting her as much as possible, make that poor Lawful Good kill innocents because "lol" and generally make it terrible go be alive again.