This was the power of the undying tier, which made the Rule Power controlled by emperor-tier beings seem as insignificant as ants.
It was merely an avatar, yet it easily overwhelmed all of the emperor-tier beings.
Everyone knew very well that if Yun Shu wished to make a move, he could kill everyone present with a casual strike at this moment.
Accompanied by the sudden emergence of Rule Power, Yun Shu began to slowly take the oath.
Every word he uttered exploded like thunder, stirring up the Rule Power within him, while strands of a strange force emerged from the heavens and earth, gradually merging into the Rule Power.
This strange force, profound and mysterious, was clearly felt by everyone.
The pact had been formed!
Once the oath-taker violated their oath, their own Rule Power would be backfired upon by this strange force.
Even the undying could not be exempt!
Realizing this, a sense of relief was clearly visible on everyone's faces.
