Tai Cang's gaze turned grave. If he continued to struggle, his mana would inevitably be exhausted.
"I have to break it with a single strike!"
He took a deep breath, a cold glint flashing in his eyes as the Innate Yin Yang Sword in his hand suddenly trembled—
"Heaven-Opening Strike: One Sword Splits Yin Yang!"
Screech!
A sword aura stretching ten thousand zhang tore through the heavens and slashed fiercely into the Immeasurable Tribulation.
Boom! Boom! Boom!
The tribulation clouds shook violently. The shattered areas rapidly repaired themselves, and their might even grew stronger.
"Can't do it?"
Tai Cang furrowed his brow. Even the Heaven-Opening Strike had failed to destroy the Immeasurable Tribulation. His strength was clearly still insufficient.
"I need to grow stronger."
As he muttered, Tai Cang brought out the True Martial Black Eagle Banner to protect himself, then sat cross-legged and contemplated the profundities of the sword Dao. To break this tribulation, he needed power beyond the Immeasurable Tribulation. Aside from the Heaven-Opening Three Forms, only further advancement in the sword Dao could achieve that.
"Ding! Sword Dao comprehension complete."
In an instant, Tai Cang had grasped the true essence of the sword Dao. The Shangqing Sword Art already contained the essence of the sword Dao, so this deduction proceeded naturally.
"Success!"
Tai Cang rose with a smile and stared at the Immeasurable Tribulation, which was gathering its strength. He declared, "System, raise the sword Dao to perfection!"
"Ding! Maximum-level authority consumed. The sword Dao has reached its peak!"
In that instant, vast amounts of true sword Dao insights flooded into his divine consciousness: sword qi sweeping unhindered, sword momentum towering like mountains, sword intent permeating all, a sword domain forming on its own, a sword world opening...
In but a moment, Tai Cang's attainment in the