The ground of the city is artificial. It is a barrier created by an Origin artifact. It separates the private lower section of the city from the pubic inner and outer city. The barrier is sturdy but it can not take the stress that reaches the Sovereign level. It means Soverick is already outputting power at the Sovereign level as a king of law.
Hadrick muttered to itself again. "What a freak."
Hadrick suspected as much since it has seen some of the things that Soverick can forge. His abilities have always been beyond what a king of law can achieve. But that sphere that he created is beyond what an origin god should be able to forge. So trying to use common sense to evaluate Soverick won't work. He would rather just ignore the weirdness and just forge.