"Impossible!"
"Breaking through to Supreme should only involve undergoing a great collapse of the self. How could there be a lightning tribulation?!"
Mu Qing and the others were utterly shocked. This defied all common sense!
Lightning tribulations came from the universe's instinct and were one of the means by which that instinct prevented the strong from advancing.
But lightning tribulations could at most deal with Emperors. Beyond that point, there was no need to undergo them at all—one could shatter them with a wave of the hand!
One could even deny the very existence of a lightning tribulation and break through directly, without needing to overcome it.
The universe's instinct was also aware that lightning tribulations had a limit to their power. They were ineffective against powerful figures such as Extreme Great Emperors and half-Supremes, which was why it later created the nine shackles specifically to target Supreme experts.
Yet Xin Rui's breakthrough to Supreme was anything but ordinary. A dignified half-Supreme had actually encountered a lightning tribulation while breaking through to Supreme!
And the might of this lightning tribulation was terrifying as well—at the very least, it had reached the Supreme level!
Mu Qing hesitated. He wanted to intervene, but he did not dare!
The lightning tribulation above Xin Rui's head was still gathering strength. Its next attack would surely be a Supreme-level lightning tribulation strike.
Xin Rui was currently in his aged state. Even the phantom of the Reincarnation Disk above his head had already shattered after helping him block one attack.
Xin Rui, whose aura was incomparably weak, had no chance of withstanding the next strike!
"Should we intervene?"
Star Phoenix Emperor's expression was grave. He too could see that Xin Rui seemed unable to hold on much longer.
But the process of breaking through to Supreme