The black-robed man felt an indescribable pressure emanating from Dao Lord Taichu, making his heart tighten involuntarily.
He did not know what Dao Lord Taichu's trump card was, but he could sense the terrifying strength of this power.
With a wave of Dao Lord Taichu's hand, the mysterious rune transformed into a light pillar that shot into the sky before swiftly falling back into his hand.
As the light pillar faded, an ancient treasure box appeared in Dao Lord Taichu's palm.
Dao Lord Taichu raised the box and pressed it lightly. The lid slowly sprang open, revealing the treasure within.
It was a massive crystal, its surface shimmering with rainbow-colored light, as though the stars of the cosmos had gathered within it.
"This is the legendary Sky Origin Crystal. It possesses boundless power.
Black-robed man, you should consider yourself fortunate to witness this with your own eyes, because you will become a witness to the power of Dao Lord Taichu." Dao Lord Taichu's voice was deep and imposing.
The black-robed man's expression was cold, battle intent flashing in his eyes. He would not submit so easily.
He silently circulated the magical power within his body. Dark Energy began gathering in his palm, forming a pitch-black blade.
"Dao Lord Taichu, do not think that obtaining the Sky Origin Crystal makes you invincible.
There are still people in this world who can rival you. I am one of them." The black-robed man spoke in a harsh voice.
Dao Lord Taichu smiled faintly as his body slowly rose, as though merging with the Origin Energy between heaven and earth.
His gaze locked onto the black-robed man, filled with challenge.
"Then let me see what you are capable of, black-robed man." Before Dao Lord Taichu finished speaking, he lunged at the black-robed man like