Re-sacrificing the Slay Immortal Sword Formation

Seeing this, Bi Changsheng sat upright at the heart of the formation, his expression still cold and severe.

His hands constantly changed seals, perfectly harmonizing his cultivation with the Slay Immortal Sword Formation.

Under his control, the Four Killing Swords sometimes split apart to attack in coordination, and sometimes joined together to launch a fierce encirclement. Every pattern in the Killing Formation was driven to its utmost limit.

The annihilating killing intent and destructive Dao principles surged like waves, each one more powerful than the last, furiously battering the defenses of the four experts.

Within the formation, killing sounds shook the heavens; outside it, spiritual light soared into the firmament.

The Slay Immortal Sword Formation's deadly might left the four of Sen Yuan Immortal too afraid to show the slightest carelessness.

They each employed their own methods. Wood Vitality, Strength Ferocity, Metal Fire Intensity, and Dragon Subduing Dominance—four supreme Great Daos—interwove into an impregnable defensive barrier that stubbornly resisted the Killing Formation's assault.

For a time, space shattered layer after layer, only to rapidly reassemble, while endless Energy Storms raged.

Although the Slay Immortal Sword Formation's might had already reached the Human Immortal Extreme Realm and its offensive power was peerless, the four of Sen Yuan Immortal were all powerful Late Human Immortal existences. Thus, Bi Changsheng found it difficult to break through the united defenses of the four experts in a single strike.

And although Sen Yuan Immortal, Overlord Extreme Immortal, Tai Qi Immortal, and Venerable Fa Guang could resist the Killing Formation when they erupted with all their strength, they still found it difficult to break through the blockade formed by the Immortal Slaying Four Swords and the formation patterns. They could not approach the heart of the formation and injure Bi Changsheng.

Seeing that he could not