It was hardly surprising that the Heaven-Earth Origin-Returning Formation laid out across the Northern Continent could unleash power at the peak of a second-layer Hunyuan Great Firmament Golden Immortal.
In fact, this was without him, Yuan Jie, Yuan Lun, and Yuan Ling putting their full strength into operating the Heaven-Earth Origin-Returning Formation, and without hundreds of millions of Golden Immortals and Primordial Unity Golden Immortals taking their stations to help power it.
Otherwise, the Heaven-Earth Origin-Returning Formation could have been even stronger.
With hundreds of millions of Golden Immortals and Primordial Unity Golden Immortals stationed within it and helping operate it, the Heaven-Earth Origin-Returning Formation would certainly have been able to unleash the power of a third-layer Hunyuan Great Firmament Golden Immortal.
As for him, Yuan Jie, Yuan Lun, and Yuan Ling giving it their all? Yuan Jie, Yuan Lun, and Yuan Ling were merely extras. Their presence or absence made no difference!
As long as he put his full strength into it, he should have been able to make the Heaven-Earth Origin-Returning Formation unleash the power of a fourth- or fifth-layer Hunyuan Great Firmament Golden Immortal. (Without drawing on the power of the Heavenly Dao.)
However, neither the Northern Continent's incompletely restored innate earth veins nor the entire set of Heaven-Earth Origin-Returning Formation Flags, which were only at the level of a Half-Step Postnatal Supreme Treasure, could withstand such punishment from him.
If he subjected them to it only briefly, they would probably merely suffer damage. But if he kept it up too long, they might fail to endure it and be utterly destroyed.
Yuan Yan pondered this inwardly, but the movements of his hands neither stopped nor slowed.
He, Yuan Jie, Yuan Lun, Yuan Ling, Fuxi, and Nuwa sank their consciousness into the Heaven-Earth Origin-Returning Formation, becoming one