Contract of Labor

You summon a contract out of thin air. The contract forces whoever signs to do a certain task for whatever the signer deems necessary (whatever is written as your end of the deal on the contract). The signer is then compelled to do said, and if they fail to do so they will suffer a punishment prewritten on the contract. The contract can be broken either by both parties agreeing to end it, or by a party that completed their part of the deal ending the contract themselves.