Myriad Laws Realm, where many supreme strong once fought, has been emptied of all its occupants, as even powerful spirit beasts have been guided away.
Even after deciding to make the Myriad Laws Realm the battlefield for the great battle of True Immortals, the Longevity Taoist Monarch personally took action again to strengthen and reshape this world, making it robust enough to withstand confrontations below the level of a Taoist Monarch.
There are different levels of worlds, and it is this classification that dictates the maximum power a world can accommodate; without external forces, the upper limit of world level is the strongest step creatures can reach as permitted by the Will of the Heaven and Earth.
Like the original Divine Land World, before its first promotion, the strongest creatures it could accommodate were those supreme overlords; even those who peered into the Immortal Path Realm were unable to step into it, because the heavens and earth did not allow it.