Amulet of Indenture

While wearing this amulet, you can speak its command word as an action to summon an Indentured Spirit that has been contained within the amulet. The Indentured Spirit appears in an unoccupied space you choose within 10 feet of you. It remains for up to 4 hours, all at once or in shorter bursts, each one using a minimum of 1 minute from the duration. You can dismiss the Indentured servant as a bonus action, but if it is not dismissed before its time limit elapses, the spirit breaks free of its prison and this item loses all its magical properties.

The Servant regains 2 hours of capability for every 12 hours it isn't in use.