Let draw up a contract in this contract it states you can not influence or destroy other being's creations. But if a being does influence or destroy other being's creations this will concur the wraith of all the other beings who agree to this contract. This contract will become null once the universe is stable enough to harbor life without our influence. The Riftborn is trapped in a pocket dimension through which he can observe the universe, and he is to have a preventor from others drawing energy from him, or attempting to destroy him.
Anything else?
Um...maybe we should keep a pool of emergency energy on-hand?
What about things created by the destruction of someone else's creations?
Before or after?
Before--It's grandfathered in or somesuch, don't touch it.
After--You're out of the contract. It doesn't matter.