The dark energy of the Dark Sky can isolate the inside from the outside, block spiritual power, and cut off all perceptions.
Only those who control the Dark Sky can remain unaffected by it.
Even a Golden Powerhouse, if unable to sense the external environment, is no different from a blind or deaf person. His power is unaffected, yet if he can't find a target, he cannot unleash his power.
The obstruction of the Dark Sky is not absolute, of course. For example, a top-tier divine artifact like the Sea Emperor Trident contains law power in all aspects.
For instance, resistance against external interference, immunity to instant death laws, nullification of negative powers, etc.
This is the might of the most top-tier divine artifacts. They provide all-around law coverage. Only if the law priority of other marvels is higher can they suppress the divine artifact.
