A greyish-white plate appeared in the Ghost Emperor's hand with a smooth mirror surface, which made it look like a bone mirror. The edge of the mirror was engraved with ancient runes that vaguely emanated a shocking Spiritual Energy fluctuation.
When the ancient mirror appeared, Mu Chen had also sensed it and squinted his eyes with a grave expression. "This fluctuation, an Immortal Grade Peerless Saint Artifact?"
The fluctuation was extremely powerful, even amongst the Immortal Grade Peerless Saint Artifacts. Mu Chen never expected that the Ghost Emperor would possess one. Evidently, this was the source of the Ghost Emperor's confidence.
"Abode Ruler Mu Chen, I initially did not want to use this. But since you're so stubborn, then don't blame me for being ruthless."
The Ghost Emperor eerily smiled towards Mu Chen. "But don't worry about it. Your background is powerful, so it's not easy for me to kill you. But you will have to pay a considerable price today!"
"I'm afraid that you're not capable enough." Mu Chen's expression did not fluctuate as he faintly replied.
Although the Ghost Emperor was a Middle Phase Immortal Heavenly Sovereign, he wasn't even comparable to Huang Xuanzhi in terms of fighting strength. After all, the latter was a genius that could challenge those above his cultivation, and Mu Chen naturally wouldn't be afraid of the Ghost Emperor.
Naturally, the Ghost Emperor also knew about this, so he had no intention of fighting with Mu Chen alone. He only dared to confront Mu Chen after joining forces with four Initial Phase Immortal Heavenly Sovereigns.
"Then, you can give it a try!"
Hearing Mu Chen's indifferent tone, a sinister expression flashed on the Ghost Emperor's face as he swiftly formed seals. The bone mirror in his hand turned into a white beam that soared into the sky and expanded. A few breaths later, it had turned into a thousand-foot-wide bone mirror that hovered in the sky.
"Together!"
The Ghost Emperor hollered as he looked at the four Sovereigns.
The Pellet Sun Ancestor and the other three Sovereigns knew how powerful the mirror was, so they ferociously nodded their heads and swiftly formed seals. In the next moment, five massive pillars of light soared into the sky from the five Sovereign Immortal Bodies and charged into the mirror.
Buzz!
Five pillars of light that contained endless Spiritual Energy charged into the bone mirror, causing ripples to fluctuate on the surface of the mirror. An indescribable fluctuation was being compressed and condensed on the surface of the mirror.
The space around the mirror even showed signs of collapsing, as if it couldn't bear the Spiritual Energy fluctuation.
When Nine Nether and the Profound Sky Ancestor sensed the fluctuation on the mirror, their faces couldn't help changing. They could sense that the mirror could actually gather the Spiritual Energy of the five Ghost Emperors.
But with the help of the bone mirror, they actually managed to combine their Spiritual Energy together. This wasn't the same as before, but the five of them combined into one. That attack could even kill a Middle Phase Immortal Heavenly Sovereign.
One must know that the Spiritual Energy of the five of them was powerful, and if they came in contact, there would definitely be a repulsion. But with the help of the bone mirror, they could actually combine their Spiritual Energy together.
Evidently, this should be the trump card of the five Sovereigns.
The experts and top-tiered forces of the Greatlaw Continent had clearly sensed this situation and their expressions had turned grave.
That's because they knew that when the outcome of this battle was determined, it would be the time for an Overlord of their Greatlaw Continent to appear.
"Judging from this situation, the Mu Abode's Ruler is in danger. Five Immortal Heavenly Sovereigns using the power of the bone mirror can definitely destroy the heavens and earth. Not to mention a Middle Phase Spirit Heavenly Sovereign, even a Middle Phase Immortal Heavenly Sovereign would be killed if they're careless."
"The Mu Abode's Ruler is still too young. The Ghost Emperor and the rest are cunning, so why would they provoke him at this moment without a trump card?"
"If the Mu Abode's Ruler fails, then the Mu Abode can only retreat from the Greatlaw Continent, and all their efforts will go down the drain!"
Countless whispers resounded in this region, but Mu Chen paid no attention to them. He narrowed his eyes as he looked at the huge bone mirror. The Spiritual Energy fluctuations that were gathered on it were something that even he had to pay attention to.
Rumble!
Boundless Spiritual Energy gathered on the bone mirror and turned into Spiritual Energy lightning that constantly flickered and rumbled, emanating destructive fluctuations.
The Ghost Emperor stood beneath the bone mirror and sensed the fearful Spiritual Energy. The chill on his face grew denser as he looked at Mu Chen with an eerie smile and gently waved his hand.
"I'll let you taste the power of the Primordial Unity Mirror."
When his voice landed, the bone mirror violently trembled and the mirror shone down, as if it had pierced through space and locked onto Mu Chen's silhouette.
Boom!
In the next moment, a dazzling lustre wreaked havoc on the surface of the bone mirror before it started to shrink. In just ten-odd breaths, the pillar of light that was a few thousand feet had been reduced to a palm-sized silver beam of light.
Although it had been shrunk by countless folds, when the silver beam shot out, the heavens and earth seemed to have been torn apart and everything in its path was destroyed.
Looking at the palm-sized silver beam of light, Mu Chen's face turned even more grave. The killing intent contained in it even made him feel a chill down his spine.
Huff!
Taking a deep breath, Mu Chen swiftly formed seals and a boundless Battle Will soared into the sky and poured into the body of the Battle Will Dragon.
Along with the infusion of powerful Battle Will, the Battle Will Dragon unleashed a roar and its massive body began to swell at a shocking speed.
Naturally, the crucial point was that countless Battle Runes started to appear on its body.
10,000,000! 40,000,000!
With Mu Chen's current strength, the number of Battle Runes that he could form with the Black Dragon Army had already exceeded 10,000,000. Generally speaking, 10,000,000 was equivalent to a Spirit Heavenly Sovereign.
With a total of 40,000,000 Battle Runes, it wasn't any weaker than an Immortal Heavenly Sovereign!
At this moment, Mu Chen had already unleashed the Battle Will of the Black Dragon Army without holding back.
Whoosh!
At this moment, the palm-sized silver light beam, which was so resplendent that no one dared to look directly at it, had already pierced through space as it shot over.
Roar!
The Battle Will Dragon roared, before it abruptly opened its mouth and unleashed a massive Battle Rune Dragon Breath that was also engraved with over 40 million Battle Runes.
Boom!
The torrential Battle Runes Dragon Breath clashed with the tiny silver light beam. But despite the difference in size, the Battle Runes Dragon Breath swiftly crumbled at an astonishing speed when they clashed.
In the path of the silver beam of light, the draconic breath was completely destroyed.
"Abode Ruler Mu Chen, 40,000,000 Battle Runes is truly shocking. But I'm afraid that you're too naïve if you think that you can stop the five of us!" The Ghost Emperor sneered as he looked at the silver beam of light.
Without any expression on his face, Mu Chen looked at the silver beam of light that had destroyed 40,000,000 Battle Runes in just a few breaths before he took a deep breath and flicked his finger. A ring on his finger flickered with a dark lustre.
A dark lustre spread out from his rear and another 5,000 Black Dragon Army appeared.
He initially wanted to hold back, but he had no choice but to give it his all at this moment.
"Unleash all of your battle intent!"
Mu Chen's voice rang out in the ears of every single Black Dragon Army. In the next moment, their eyes gradually turned red with a deep roar resounding from their throats.
Buzz! Buzz!
15,000 Battle Will lights soared into the sky. Every single one of them was refined and firm, before charging into the massive body of the Battle Will dragon.
Roar!
As the Battle Will Dragon roared, its body expanded once more and the Battle Runes on its body started to expand once more.
Thirty-two million, thirty-five million, forty-five million, forty-five million.
As the number of Battle Runes skyrocketed, a terrifying pressure spread out in every direction, causing the heavens and earth to turn dark.
When the five Heavenly Sovereigns saw this scene, their faces uncontrollably changed. 45,000,000 Battle Runes, even a Middle Phase Immortal Heavenly Sovereign would feel their scalps going numb.
"That fellow is truly troublesome!"
The Ghost Emperor clenched his teeth and formed seals with both of his hands. The dazzling silver beam of light suddenly sped up and was about to tear the Battle Will Dragon apart in a few breaths' time.
Mu Chen raised his head and looked at the massive dragon of Battle Will. His eyes were filled with veins of blood and there were even traces of blood flowing from them. That's because the Battle Will that he was controlling had reached a limit.
He fixed his eyes on the Battle Will Dragon and the number of Battle Runes on its body swiftly increased. Along with the increase, the veins in his eyes also increased, as if they were about to shatter.
50,000,000!
When the number of Battle Runes reached 50,000,000, it finally stopped and a tear of blood fell from the corner of Mu Chen's eyes. Wiping it off, he let out a deep breath.
50,000,000 Battle Runes was the limit of the Black Dragon Army. Perhaps it might still be inferior to their peak, but even a Late Phase Immortal Heavenly Sovereign wouldn't dare to underestimate 50,000,000 Battle Runes.
As for those beneath the Late Phase Immortal Heavenly Sovereign Realm, they would be killed.
"Go."
Mu Chen rubbed the centre of his brows in exhaustion. His eyes, which were filled with veins of blood, were filled with sharpness and killing intent as he stretched his finger out and pointed down.
Roar!
In the next moment, the massive Battle Will Dragon had turned into a streak of grey light and clashed with the destructive silver beam that contained the power of five Immortal Heavenly Sovereigns under everyone's shocked gazes.