Immediately afterwards, the Rock Demon King exerted all its strength to control the Seven Fiend Demon Fire Array to attach to its stone body, and its huge body rushed towards Zhou Xuan like a cannonball.

His every step caused the earth to tremble, and with the blessing of the great formation, he was as majestic as a mountain.

The Rock Demon King's eyes were filled with madness; he would never allow the dragon vein to fall into human hands.

Even if the dragon vein cannot rise successfully, he will still stop Zhou Xuan.

"Berserk!"

The Rock Demon King roared, its stone-like skin becoming even rougher, and slammed a punch at Zhou Xuan.

"Thump!"

The immense power caused both formations to tremble violently, their light flickering erratically.

The demonic fire raged across the surface of the military formation, making a 'sizzling' sound.

Zhou Xuan's expression changed drastically, and he roared, "Rock Demon King, you're courting death!"

He unleashed the final power of the array, sending it rebounding towards the Rock Demon King.

The Rock Demon King was jolted back several steps, his footprints leaving deep imprints in the swamp beneath his feet. But he quickly regained his footing, his eyes burning with even greater madness.

"Again!"

The Rock Demon King roared and charged at Zhou Xuan once again.

Almost simultaneously, Xiao Zhan below also unleashed his full power, leading his team to stop Zhou Xuan from obtaining the Dragon Vein.

"Zhou family brat, don't even think about obtaining the dragon vein!" Xiao Zhan roared angrily from his horse, then raised his arm and shouted:

"Brothers, charge with me!"

"Kill!" The black-armored cavalry charged to the front lines once more.

However, the forces blocking them in the formation were clearly weakened this time.

"Damn it." Zhou Xuan couldn't attend to both sides at the same time and seemed somewhat overwhelmed.

A hint of panic flashed in his eyes, for the energy within the great formation was almost completely depleted.

Amid Zhou Xuan's frantic resistance, the black-armored cavalry below broke through part of the Demon-Slaying Formation's defenses.

The Demon-Slaying Formation was already on the verge of collapse, and under the fierce impact of the black-armored cavalry, it was torn open like a fragile piece of paper.

"Oh no! Quick, defend!"

The military personnel immediately tightened their defensive line and continued to gather, attempting to block the charge.

But the black-armored cavalry had already charged into the military formation, like tigers among sheep, and were unstoppable.

"kill!"