Among the countless formations that had appeared throughout the long River of History in the Myriad Realms, the Zhou Tian Star Fighting Grand Formation was also a famous supreme formation. It was said that once deployed, it could contend against an Emperor Lord.
When the Ancient Heavenly Court had been besieged, it had remained unbroken for many years precisely because of the Zhou Tian Star Fighting Grand Formation.
Even the Five Elements Extermination Formation, backed by the combat strength of five Peak Quasi-Emperors, could not withstand Di Ni, who ranked at the bottom among Emperor Lords. One could well imagine just how vast the gap in combat strength between Quasi-Emperors and Emperor Lords was.
Yet the Zhou Tian Star Fighting Grand Formation could make up for this shortcoming.
However, forming the Zhou Tian Star Fighting Grand Formation was no simple matter. It required eighty-one Quasi-Emperors, each guarding one direction, before it could take shape. Such a terrifying number of Quasi-Emperors could only have been assembled when the Ancient Heavenly Court stood at its peak. With ten incomparably powerful Peak Quasi-Emperor Demon Kings as its core, the Zhou Tian Star Fighting Grand Formation could then be completed.
Nowadays, not a single force could produce several hundred Quasi-Emperors. After all, Quasi-Emperors were not cabbages to be grabbed by the armful. But he could use the Demon Summoning Banner as a substitute. There was no shortage of powerful Demon Kings within the banner.
More importantly, to form such a terrifying grand formation under normal circumstances, experts from every side had to be gathered together. That might work for a decisive battle, but it was insufficient for everyday defense. Those Quasi-Emperors all held lofty positions and commanded their own regions. It was only natural for them to obey orders in wartime, but making them