The ability to give a person a power or gain a power, or change an event through an agreement. A sub-power of Power Bestowal, Self-Power Bestowal and Wish Granting.

The user can give a person a power, an object of power or change nearly any event within their power to something as trivial as transporting them to a location or as simple as knowledge on something. Some other uses include being their servant till they die or something as extreme as giving them a plot coupon.

They can also create their own contract granting something within a contract's payment being as no payment.

The user can take anything from a contracted client be it their powers, emotions, memory, soul or event in their past or future and maybe even someone connected to the client who they can choose to make him or her their servant. The contract can be fulfilled by doing some task or arduous payment.

The user can bend the agreement to their own desires limited only by his/her power and therefore they can change the contracted into a monster as a way to give him or her a power. As long the agreement didn't say they could not perform a certain action their restraints are somewhat relative. The user can also simply agree to grant the person what they want without telling them what their payment is or when they will pay it.