This time, the consumption was exceptionally great. Not until 40 million years had been spent, leaving 134 million years of cultivation time, did Undying Lightning descend from the Imperishable Expanse and begin enhancing the Undying Celestial Body.
Lightning illuminated Myriad Ages in an Instant as Lin Xuan bathed in the terrifying thunderbolts.
Undying Lightning flowed through every inch of his flesh, and Lin Xuan's body underwent astonishing changes.
The original gleaming radiance vanished completely. There were no longer any extraneous hues within his flesh and blood; after flowing through him, the Undying Lightning merged into it as well.
Gradually, Lin Xuan sensed a peculiar aura. Enveloped by it, he found that his flesh and blood no longer feared the erosion of power or the horizontal slash of time.
"The fourth realm of the Undying Celestial Body—Myriad Tribulations Unyielding!"
The torrent of Undying Lightning came to an end, and Lin Xuan opened his eyes.
"Myriad Tribulations Unyielding, difficult for myriad laws to harm—this has already surpassed the stage where one needs to wield power to restore oneself."
"No wonder those peak Earth Immortals could endure in the world for so long, accumulating such profound and astonishing foundations."
Lin Xuan sighed inwardly as passages from texts he had read flashed through his mind.
Those texts had once said that when two peak Earth Immortals fought, unless they possessed methods beyond all common sense, it would be difficult for either side to kill the other.
Even if a peak Earth Immortal's immortal soul was ground away, their body could still endure. That was the defining trait of Myriad Tribulations Unyielding.
Of course, recovering after injury, like in the Golden Body Realm and Gleaming Realm, could only be considered a basic ability of a top-tier Undying Celestial Body.
After his reflections, Lin Xuan frowned.