Kun Cave Power was activated.
Upon Xu Nian's sword, a terrifyingly immense aura instantly emanated.
The space around the Immortal Sword twisted and even showed signs of collapse.
Fortunately, Xu Nian used the Immortal Sword; had it been a Spirit Sword, it might not have withstood such terrifying Kun Cave Power.
"Not good!"
The killing Patriarch Xu's face instantly changed.
A dense aura of death enveloped his heart.
At that moment, Patriarch Xu clearly felt death approaching.
The figure rushing towards Xu Nian suddenly stopped in mid-air and rapidly retreated backward.
"Thinking of retreating now seems a bit too late," Xu Nian's lips curled into a cold smile.
The fully charged Immortal Sword, at that moment, did not hesitate to strike out.
"Buzz!"
A terrifying Flame Sword Light instantly burst from the sword.
However, within this red Flame Sword Light, there was a hint of black power.
