The Heavenly Tribulation tempered his body, his voice resounding throughout the Northern Region.

Heavenly might was like a prison!

The swirling tribulation clouds, spanning ten thousand miles, slowly rotated. Their center was pitch-black, as if connected to the source of destruction. Terrifying heavenly might descended, making Mo Yuan, Su Wanqing, and the other Protectors outside the valley tremble in their Divine Souls. They felt like ants facing the sky, unable to muster any resistance, and could only retreat again and again, staying far away from the core area of the Heavenly Tribulation.

Boom-crack!

The first bolt of tribulation lightning was not an ordinary flash of lightning, but a pitch-black Demonic Lightning condensed with endless destructive will, like a roaring black Dragon, tearing through the sky and striking directly at Nightmare in the valley.

This was the "Annihilation Demonic Lightning," specifically designed to destroy a Cultivator's Dao Foundation and Demonic Essence, causing even greater harm to Demonic Cultivators!

Nightmare did not dodge or evade. The demonic light in his eyes blazed, and he suddenly took a deep breath, his chest slightly bulging, and punched directly towards the sky!

As his fist shot out, Myriad Poison Demonic Essence surged, the power of rule fragments was hidden within, and the surface of his fist glowed with the colorful luster of the star source core!

Rumble!

Fist and lightning collided!

The pitch-black lightning instantly exploded, completely engulfing Nightmare! Destructive lightning power furiously drilled into his body, wantonly destroying his Meridians, Dantian, and even his Nascent Soul!

However, Nightmare's figure merely swayed slightly, then remained unmoving. The Myriad Poison Demonic Scripture circulated wildly within him, and the myriad poison true infant opened its small mouth, actively devouring the invading Annihilation Demonic Lightning power, refining and absorbing it! The rule fragments flickered slightly, smoothing over the subtle damage caused by the lightning, and analyzing the destructive Law contained within.

"Not enough! Again!" Nightmare roared, his voice piercing through the thunder, carrying a hint of excitement.

The Heavenly Tribulation seemed enraged by his provocation. The tribulation clouds churned, and the second and third bolts of tribulation lightning fell one after another! One was crimson like blood, containing the Blazing Sky Karma Fire; the other was pale like bone, emitting extreme cold that froze the Divine Soul!

Ice and fire intertwined, destruction and erosion coexisting!

Nightmare let out a long howl, spreading his arms. His left hand manifested the Myriad Poison Demonic Palm, with a poisonous vortex rotating in its center, devouring and refining the Karma Fire; his right hand formed a blade with his fingers, condensing the power of the annihilation nether spring to cut through the extreme cold and ice seal!

Boom! Boom!

Energy exploded wildly, and the ice valley vibrated violently. The surrounding mountain walls, struck by the aftermath, instantly turned into dust!

Nightmare's black robe had long turned to ash, revealing his robust and perfect physique, adorned with intertwined Demonic Runes and starlight. He endured the baptism of the Heavenly Tribulation, not only remaining unharmed but his aura became more condensed and terrifying with each collision!

The subsequent Heavenly Tribulation became even more bizarre and unpredictable.

There was a Heart Demon Tribulation, manifesting countless vengeful spirits who had died tragically by his hand, as well as various obsessive illusions from his past and present lives, attempting to shake his Dao Heart. However, Nightmare's Dao Heart was as firm as a rock, and his Myriad Poison Demonic Soul devoured all negative emotions. The Heart Demon Tribulation could not get close to him by a hair, instead being refined and absorbed, nourishing his Divine Soul.

There was a Wind Tribulation, where the formless and invisible Nine Heavens Gale (Rigid Wind) blew, capable of stripping away a Cultivator's flesh and blood, and dispersing a Nascent Soul's spirit. Nightmare stabilized himself with the star source core, and starlight flowed over his body, allowing him to forcefully endure it. His Physical Body, instead, became more crystalline and tough under the grinding of the Rigid Wind.

There was a Fire Tribulation, not ordinary fire, but Dao Fire that directly burned cultivation and Lifespan! Nightmare directly activated the rule fragments, briefly distorting the Laws around him, causing the Dao Fire to extinguish without a source!

Earth, water, fire, wind, Heart Demon illusions, all kinds of tribulations followed one after another, each wave stronger than the last!

Nightmare used all his methods: Demonic Technique, poison arts, rule fragments, the power of the star source core, a powerful Physical Body, a resolute Dao Heart... He regarded this Heavenly Tribulation as an unprecedented tempering, fully displaying everything he had learned and comprehended, being reborn in destruction and transforming in resistance!

The entire Heaven's Ridge Mountain Range was alarmed by this terrifying Heavenly Tribulation phenomenon!

Countless Yao Beasts prostrated on the ground, trembling. Many Cultivators who were adventuring or living in seclusion on the outskirts of the Northern Region were alarmed, looking with horror at the terrifying tribulation clouds covering ten thousand miles.

"This... this is a Soul Transformation Heavenly Tribulation?! How can it be so terrifying?"

"Looking at the direction, it's the Ten Thousand Year Ice Fiend Valley deep within the Heaven's Ridge Mountain Range! Who is Undergoing Tribulation there?"

"Such terrifying Demonic Qi intertwined with the Power of the Stars... The person Undergoing Tribulation is definitely not an ordinary Demonic Cultivator!"

"The power of this Heavenly Tribulation far exceeds what is recorded! If he can pass it, his strength, once he enters Soul Transformation, will probably be comparable to Middle Stage or even Late Stage mighty figures!"

The news spread like wildfire. Nearby Sect forces dispatched personnel to investigate, but they were all blocked by the world-destroying aftermath of the Heavenly Tribulation, unable to approach. They could only observe from afar, their hearts filled with unparalleled shock.

Even the Sky Patrol Alliance flying boats patrolling the border of Central State, and some hidden Yao Race scouts, noticed this abnormal celestial phenomenon and quickly sent the intelligence back.

"It is suspected that a peerless Devil Head is Undergoing Tribulation to Soul Transformation in the Heaven's Ridge Mountain Range. The Heavenly Tribulation phenomenon is astonishing, possibly related to the Devil Head that appeared in the Starfall Secret Realm!" Similar messages began to circulate among the high-level officials of various major forces.

When Saintess Azure Glass of the Azure Phoenix Sect and the Heavenly Patrol Alliance Holy Son (if he hadn't died in the collapse of the ancient palace) received the news, their expressions must have been extremely grim.

However, no matter how much the outside world shook, it could not affect Nightmare at the center of the Heavenly Tribulation.

The final Heavenly Tribulation had been brewing for a long time.

At the center of that massive tribulation cloud vortex, all the destructive energy finally condensed into the form of a giant axe! The giant axe was not a physical entity, but was composed of countless Law runes, representing the ultimate judgment of this world's Heavenly Dao upon those who defied the heavens!

"Axe of Law?!" Nightmare's eyes finally became completely solemn. This was the most terrifying stage of the Soul Transformation Heavenly Tribulation, where countless incredibly talented individuals had fallen under this axe, perishing body and Dao!

The giant axe slowly descended, silently, yet it locked onto Nightmare's Divine Soul Origin, making it impossible to evade!

"Good!"

A Madness (frenzy) flashed in Nightmare's eyes, and all the power within him erupted without reservation! The myriad poison true infant left his body, holding an illusory long spear condensed from rule fragments. It grew with the wind, also transforming into a towering giant, and fiercely stabbed towards the Axe of Law!

At the same time, his Physical Body's vital Qi surged into the sky, and the power of the star source core permeated his limbs and bones, preparing to forcefully withstand the blow!

Crack—!

It was as if it were the first loud sound at the creation of heaven and earth!

The Spear of Rules and the Axe of Law collided fiercely!

There was no explosion, only endless Law ripples spreading wildly. Wherever they passed, space shattered like a mirror!

The myriad poison true infant trembled violently, cracks appearing on its surface, but it supported itself with immense tenacity! The rule fragments flickered frantically, continuously neutralizing and analyzing the power of the Axe of Law!

Stalemate! Consumption!

Finally, with the assistance of the rule fragments, a power beyond the scope of this world, the light of the Axe of Law began to dim gradually. It ultimately let out an unwilling wail, then shattered with a crash, transforming into a rain of the purest rule fragments, scattering down!

Pfft!

Nightmare spat out a mouthful of blood, and the myriad poison true infant also dimmed, instantly returning to his body. Forcefully resisting the Axe of Law, he had suffered no minor injuries.

But, the Heavenly Tribulation, had been overcome!

The destructive tribulation clouds in the sky instantly transformed into endless pure Heavenly and Earth Spiritual Liquid and Law Ambrosia, pouring down like a celestial river, surging into Nightmare's body!

His shattered Meridians rapidly healed, his dimmed Nascent Soul greedily absorbed the Spiritual Liquid and rule fragments, becoming more solid and powerful. A complex Star Demonic Rune even appeared between his eyebrows!

Under the washing of the ambrosia, all the Impurities in his Physical Body were removed, his bones became like jade, his blood like mercury, emitting a faint precious light, and its strength reached an unimaginable Realm!

His Divine Sense surged wildly at an unprecedented speed, easily covering tens of thousands of miles, and his perception of the Laws of Heaven and Earth became more than ten times clearer!

A sense of life-level transcendence filled his entire body!

Power! Incredibly powerful strength surged within him!

Soul Transformation Stage!

He successfully stepped into the Soul Transformation Stage!

Moreover, his Foundation was so profound that it far surpassed ordinary Early Spirit Transformation Stage Cultivators, directly approaching the Mid-stage Dao Replenishing!

Nightmare stood in the shattered valley, bathed in the Spiritual Liquid and ambrosia, feeling the earth-shattering changes within himself. He couldn't help but let out a long howl, shaking the Nine Heavens, announcing the official rise of a generation's Demonic Lord!

The howl spread in all directions, causing all observers to tremble in their Divine Souls!

"He succeeded... he actually succeeded!"

"Quickly leave! This place is not suitable for long stays! Quickly send the news back to the Sect!"

"The Northern Region... is about to change!"

Countless streaks of light fled in panic from the Heaven's Ridge Mountain Range.

Nightmare slowly reined in his aura, his gaze like lightning, sweeping across the distance, a cold arc forming on the corner of his lips.

Soul Transformation has been achieved; it is time to stir up his own storm in this Northern Region, and even the entire Cultivation World.

He casually took out a new black robe and put it on, then took a step, already appearing tens of thousands of miles away, in front of Mo Yuan and the others.

"Let's go."

There were no extra words, but Mo Yuan and the others felt the unfathomable and vast aura on Nightmare, seamlessly integrated with heaven and earth, and all bowed with excitement and reverence.

"Congratulations, Master (Benefactor), on successfully reaching Soul Transformation! Your demonic might covers the world!"

Nightmare slightly nodded, gathered everyone, and transformed into a faint stream of light, instantly disappearing into the horizon, heading towards the depths of the Northern Region.

The Demonic Land of the Northern Region welcomed its new Dominator. And the tides of the entire Cultivation World would become even more turbulent because of his arrival.