Mastery Maxed Out, Grinding to Become a Sword Immortal Among Mortals

At one point, the Myriad Phenomena Mansion Lord suddenly looked up.

His voice was cold. "Everyone, I sense someone attacking the Formation Array from outside. Our people must have arrived. Come with me—we'll attack from within and without and break the Formation Array."

"Then you can give it a try."

Amid the crimson haze, several figures laughed wildly, as if mocking their foolish overconfidence.

But the Formation Array really was quivering nonstop.

Clearly, an outside force was battering it. Reinforcements had arrived!

Their spirits lifted.

Everyone saw a glimmer of hope.

So countless torrents of magical power surged toward the great Formation Array.

Yun Shu was among them.

However, he was putting on a show without exerting himself.

"This won't work," Yun Shu said.

"Then please enlighten me, sir." The Black Stone Cult Master's expression shifted. He had always looked to Yun Shu for guidance.

Now that he heard sir say this, surely he had a solution?

As for how to get everyone to act once they had a solution, that was easy.

For one thing, as a Cult Master, he had plenty of prestige—and then some.

Yun Shu nodded.

"I'll teach you."

No one else could have imagined that, in such a dire moment, two people would be holding back: one daring to teach, the other daring to learn.

As for whether the Black Stone Cult Master could understand the Formation Array inside and out, that would depend on his aptitude.

But for someone at the Cult Master level, grasping the Formation Array's layout and tracing its patterns—even if not mastering it in a short time—was quite easy.

The Black Stone Cult Master nodded repeatedly, absorbing some of the knowledge about Formation Arrays that Yun Shu sent him.

Some of it was transmitted to him directly, while other parts