Rahula did not underestimate the Innate Grand Formation before him. After all, it used three top-grade innate spiritual treasures as its Formation Eyes!
And the Dragon Palace that served as its Formation Base was no ordinary palace. It was an Acquired Supreme Treasure comparable to a top-grade innate spiritual treasure!
Clearly, the Dragon Palace had been forged after the dawn of creation.
But treasures forged after the dawn of creation were not necessarily inferior to innate spiritual treasures!
What was more, the Dragon Palace was an Acquired Supreme Treasure of the highest order. Though it could not compare with an Innate Supreme Treasure, it could just barely rival a top-grade innate spiritual treasure.
Only because it had never been transformed from acquired to innate had the Dragon Palace failed to become a top-tier, top-grade innate spiritual treasure!
It was the Dragon Clan's ancestral seat. They had surely spared no effort in forging it.
Afterward, the Progenitor Dragon and the other Daluo Golden Immortals of the Dragon Clan had nurtured it, making the Dragon Palace terrifyingly powerful.
Compared with the Immortal Slaughtering Sword Formation, however, this Innate Grand Formation still fell short.
Besides, whether a formation could unleash its full power depended on its master!
The moment Rahula deployed the Immortal Slaughtering Sword Formation, the Dragon Palace's formation activated on its own, immediately alerting Zhu Long and the Dragon Clan's five Daluo Golden Immortals.
Zhu Long did not know who the enemy was, but he knew what mattered most.
He took control of the Dragon Palace's formation at once.
With someone commanding it, the formation blazed with incomparably brilliant light of the Great Dao.
The other five Daluo Golden Immortals hurried to the three Formation Eyes. Taking command of the top-grade innate spiritual treasures there, they helped Zhu Long keep the