Of course, the deployment of hundreds of millions of ghosts and the countless netherworld soldiers rushing out of the Reincarnation Underworld was a situation unlikely to occur.
Unless the Immortal Domain Civilization suffered an unimaginable calamity and crisis.
For life and death were themselves a manifestation of the Star Realm's laws of balance.
The Immortal Domain Civilization's creation of a Civilization Supreme Treasure such as the Reincarnation Underworld, which helped the dead reincarnate, allowed souls to be reborn and cultivate anew, and dispelled the baleful energy produced by the Immortal Domain Civilization's successive great calamities over countless years, had already seemed inconceivable to the Wizard Civilization.
If Yin Energy were detonated and countless ghosts returned to the mortal world, that would be what the Wizard Civilization often spoke of—balance being broken.
At present, in this Star Realm, aside from the legendary Level-9 Beings, only Civilization Supreme Treasures possessed the power to break the balance.
This was also the greatest foundation upon which Top-Level Civilizations stood above Large World Civilizations that likewise possessed Dominator-class beings.
The Witch Clan, which governed the Reincarnation Underworld, naturally could not release Yin Energy without limit. They would not even activate the Reincarnation Underworld casually.
This expedition to the Wizard Civilization Battlefield was, in fact, primarily meant by the Witch Clan's upper ranks to temper their younger generation.
This included the netherworld soldiers and ghost cultivators who had been frequently conscripted over the past several decades. All of them were "legal" existences within the Prehistoric World.
They were absolutely not products created by the Witch Clan's reckless use of the Reincarnation Underworld.
Back when the Immortal Domain's Level-9 Being, Taoist Ancestor Hongjun, left the Star Realm, he entrusted the Civilization Supreme Treasure known as the Reincarnation Underworld to the Witch Clan rather than to his own