While the player is in Battle Through the Heavens, the system is in The Great Ruler.

Chapter 250 The Heaven-Defying Three Yang Thunder, the Method for Advancing Spiritual Objects!

"hiss……"

"An unparalleled sacred artifact..."

Lu Yu's eyes lit up, but then he shook his head.

"What a pity, the level is too high, it's not suitable for me..."

"Even the lowest-grade, low-level sacred artifacts are not something I can use right now..."

He pondered carefully: "The sacred objects of the Great Thousand Worlds require at least a Ninth Grade Supreme cultivation level to activate, and even ordinary Supreme experts may not be able to possess a sacred object. They usually use top-grade divine artifacts."

“Sacred artifacts, as the foundation and treasures of a sect, are divided into low-grade, mid-grade, high-grade, and legendary peerless sacred artifacts.”

Lu Yu stroked his chin and continued his analysis, "To perfectly refine a peerless sacred artifact, one needs at least the cultivation level of a Heavenly Sovereign. And the difference between a Sovereign and a Heavenly Sovereign is more than just heaven and earth."

"I'm afraid that the mere pressure emanating from this peerless sacred artifact would be enough to crush me into dust the moment it was taken out."

"As for the blood essence of a Thunder Beast at the Earthly Sovereign level," Lu Yu looked at the second option, "although it contains immense energy, with my cultivation at the peak of the One-Star Dou Sheng level, I simply cannot withstand such a powerful energy impact."

"After all, unlike in the simulation, I don't have the backing of a super power. I don't have rare medicinal herbs to prepare the medicinal bath, nor do I have three Earthly Sovereign Elders protecting me."

He calmly assessed the situation, saying, "If I want to temporarily store it, given the extraordinary nature of the Earthly Sovereign's essence blood, I can't even find a suitable container."

"After all, the Floating Pagoda is currently only comparable to a low-grade divine artifact. If it were a top-grade divine artifact, it might be worth the risk."

“Only this inheritance jade slip…” Lu Yu’s gaze finally fell on the third option, “The three self-created divine techniques recorded in it are in line with the combat techniques I am currently cultivating. I can master them in a few days and they can greatly improve my combat ability.”

“So…” he made his final decision, “the inheritance jade slip is the most suitable choice for me at the moment.”

Once he made up his mind, Lu Yu made his choice in an instant.

In an instant, a jade slip shimmering with purple lightning fell into his palm. As he probed the jade slip with his soul power, a vast sea of ​​inherited information flooded his mind:
"The Supreme Heavenly Technique, the Nine Heavens Thunder Emperor Scripture; the Supreme Dharma Body, the Nine Heavens Thunder Venerable Dharma Body Cultivation Method; the Heavenly Grade Low-Level Spiritual Array, the Nine Heavens Thunder Prison Array..."

"Minor Divine Art Thunderous Roar, a sonic divine art, its sound is like thunder, a single roar shakes heaven and earth..."

"The Great Divine Technique: Heaven-Burning Seal, a Divine Palm Technique, silences all laws with a single strike..."

"The Great Divine Technique: Yin-Yang Breaking Finger, a divine finger technique that separates Yin and Yang with one finger and life and death with the other..."

"The Great Divine Art of Dragon and Phoenix Wandering, a divine movement technique that allows one to travel ten thousand miles in a single thought, and upon mastery, one can transform into a dragon or phoenix..."

"The Great Perfection Divine Art Thunder Emperor's Undying Body, a body-refining divine art, achieved through nine refinements to form an undying thunder body... Can its mastery be compared to a divine power?"

"Ok?"

As he sensed the last divine technique inherited from the jade slip, a look of surprise flashed in Lu Yu's eyes.

"Magic?"

"A Great Completion Realm technique can actually rival an Emperor-level combat skill?"

"Thunder God Palace actually has such a good thing?"

Lu Yu carefully studied the body-refining divine technique within the inherited jade slip, his surprise growing ever stronger.

He had only seen divine arts comparable to supernatural powers at the Great Perfection level in the simulation with the Ancient Buddha Clan. Even other Heavenly Sovereign-level forces rarely saw them.

After all, the difference between divine arts and supernatural powers is comparable to the insurmountable chasm between a supreme being and those below that level.

Lu Yu took a deep breath. "The ancient Futu clan has a history of tens of thousands of years, so it's not surprising that they have such a foundation. I didn't expect that the Thunder God Palace would also hide such a precious heritage."

A look of delight flashed in his eyes: "As expected of the lineage passed down by the ancient Thunder Emperor, this kind of divine technique, which can rival supernatural powers after mastery, is definitely more valuable than ordinary supernatural powers. After all, the conditions for cultivating supernatural powers are harsh, while divine techniques are easier to learn."

"Great! With such a body-refining divine technique, even if I reach the high-level Dou Sheng realm in the future, I will still be able to fight beyond my level..."

"Oh right, I almost forgot, there's also a secret technique in the jade slip..."

Lu Yu once again probed the jade slip with his soul power, carefully studying the Three Yang Thunder Technique. As he gained a deeper understanding of the secret technique's contents, his expression gradually became solemn.

"It requires at least the Supreme Realm level to use this?"

"It can actually transform wood into lightning, lightning into fire, and fire into wood? It can perfectly transform these three yang-attribute spiritual objects without damaging their original characteristics in the slightest?"

He muttered to himself, his fingertips unconsciously tapping the jade slip: "If the fundamental characteristics are not changed, then what is the point of such a transformation?"

A hint of confusion flashed in Lu Yu's eyes, then he raised his hand and took out a seventh-tier Dragon Blood Grass from his storage ring. The emerald green leaves lay quietly in his palm, emitting a faint aura of dragon blood.

According to the secret manual, he circulated his internal fighting spirit, forming a profound hand seal in front of his chest. Three colors of light emanated from his fingertips: cyan symbolizing wood, silver representing lightning, and crimson corresponding to fire. The three colors intertwined and swirled like dragons, ultimately condensing into a complex three-colored rune.

As the rune gently touched the Dragonblood Grass, a wondrous change occurred. The emerald green leaves first crackled with silver lightning, fine arcs of electricity flowing and leaping between the veins; then the lightning gradually faded, and crimson flames emanated from within, completely enveloping the entire Dragonblood Grass.

Most remarkably, during this transformation, the dragon blood herb's unique dragon blood aura remained, instead condensing into a tiny dragon-shaped phantom within the flames. The originally solid herb had now transformed into a leaping crimson flame, within which the dragon's shadow could be faintly seen moving.

Lu Yu stared at the leaping crimson-gold flame in his palm, his expression gradually becoming serious. "This flame, though not as powerful as a true strange fire, far surpasses ordinary beast fire... perhaps it can be called a pseudo-strange fire."

"Although it is still Dragon Blood Grass in essence, after the transformation, it can be used directly in battle or alchemy, which is equivalent to turning the medicinal material into a secondary strange fire that can be used at any time."

He frowned slightly: "But how useful would such a transformation be to a powerful figure like the Thunder Emperor of the Heart Demon?"

Lu Yu seemed to be deep in thought, then took out four more seventh-tier Dragon Blood Grasses and transformed them one by one into pseudo-differential flames. As the five crimson flames danced in his palm, he subtly moved his mind and, following the guidance of the secret technique, slowly fused the five flames together. Five dragon shadows intertwined and swirled within the flames, ultimately transforming into a more solidified crimson-gold flame. Astonishingly, when he transformed this flame back into Dragon Blood Grass, pale golden patterns appeared on the emerald green leaves, and the energy fluctuations it emitted noticeably increased to a higher level.

"Eighth-tier Dragon Blood Grass!"

Lu Yu stared at the Dragon Blood Grass in his hand, which had transformed into an eighth-tier plant, his breathing involuntarily quickening. He repeatedly sensed the significantly increased energy fluctuations within it, and the shock in his heart was indescribable.

"So that's how it is... So that's how it is!" he murmured to himself, his eyes gleaming with understanding. "This is the true value of this secret technique; it can actually enhance the grade of spiritual items through the fusion of origins!"

He recalled the information he had learned from the simulation: "No wonder the Demon Emperor was able to rise rapidly with this method and eventually become a Celestial Supreme. It's like finding a shortcut to continuously enhance cultivation resources!"

Lu Yu took a deep breath, his voice filled with barely suppressed excitement: "The value of this Three Yang Thunder Technique probably surpasses that of ordinary peerless divine abilities..."

"No, perhaps even ordinary peerless divine abilities cannot compare to this secret technique. After all, no matter how powerful a divine ability is, it is merely a means of combat, while this secret technique can fundamentally enhance one's cultivation foundation!"

He gazed at the golden dragon blood grass in his hand, a hint of regret flashing in his eyes: "It's a pity that the gap between Saint-grade and Immortal-grade is like an insurmountable chasm. No matter how many fusions are made, it's difficult to refine a Saint-grade spiritual object. Otherwise, with such a heaven-defying secret technique, that Heart Demon Thunder Emperor might even have a chance to reach the Saint-grade Heavenly Supreme level!"

At this point, he suddenly sighed softly, "Even so, being able to break through to the Celestial Sovereign level using this is enough to prove the value of this secret technique. If used properly, it might even allow one to go further in the Celestial realm..."

"Back then, the world was truly teeming with talented people and countless heroes!"

Lu Yu gently stroked the jade slip in his hand, feeling the ancient heritage contained within it, and couldn't help but yearn for that ancient era of brilliant stars.

……

After a few days,

Above Dragon Island, the sea of ​​clouds churned. Three figures traced magnificent trajectories across the azure sky, each exchange causing the winds and clouds to shift and change color.

Lu Yu treads on the void, his figure leaving afterimages among the clouds. When he takes a step with his left, the dragon shadow surges; when he moves lightly with his right, the phoenix wings spread, allowing him to move freely amidst the attacks of the two elders.

Elder Qingshan launched a "Azure Dragon Claw" attack, but he retreated as swiftly as a willow catkin, and then pointed out with one finger.

"boom!"

The force of the finger tore through the sky, and the yin and yang energies intertwined to form a spiral storm, which collided fiercely with the cyan dragon claw!

The shockwave exploded, and the sea of ​​clouds churned back. Taking advantage of the momentum, Lu Yu leaped into the air, flipped his palm, and pressed down. The crimson palm print, carrying the power to scorch the heavens and boil the seas, crashed down, and the temperature of the entire sky suddenly soared.

"A little friendly trick!"

Elder Qingshan laughed loudly, and with a flick of his right hand, the energy of heaven and earth instantly surged, condensing into a thousand-foot-long azure dragon seal in front of him. The dragon seal was as solid as a physical object, with every dragon scale clearly visible, and roared forward with a world-destroying aura.

Intermediate Heavenly Rank Battle Skill: Azure Dragon Seal!

boom!
The two seals collided violently, and the blinding light instantly engulfed the sky. The violent energy turbulence spread out like ripples, tearing the surrounding sea of ​​clouds to shreds.

Lu Yu's eyes flashed with a sharp light. Instead of retreating, he shattered the void with a single step, his figure shooting forward like an arrow released from a bow. He brought his two fingers together, the Yin and Yang energies swirling wildly at his fingertips, condensing into a spiraling force that tore through the sky—

"Breaking Through the Void Finger!"

The wind blew like thunder at dawn, striking with unparalleled precision at the most vulnerable spot on the thousand-foot-long dragon seal.

With a crisp "crack," cracks suddenly appeared on the surface of the majestic dragon seal, which then exploded with a bang, turning into countless points of light that fell like a rain of stars.

"Good eye, little friend!"

At this moment, Elder Qingmu, who was standing to the side, praised loudly, and the hand seals in his hands were also completed.

In an instant, countless verdant vines burst forth from the void, twisting and intertwining like serpents, transforming in the blink of an eye into a gigantic net that blotted out the sky, descending with an overwhelming force to suppress everything.

Faced with this overwhelming onslaught, Lu Yu spun like a whirlwind, no longer holding back, and slammed his palms together. Blazing golden Floating Pagoda Flame erupted from his body, and as the flames surged, a dazzling, enormous palm print rapidly condensed—

It is the Heaven-Burning Seal!
The palm print seemed to contain a blazing sun, its intense heat causing the surrounding space to distort slightly. Golden flames leaped and burned at the edge of the palm, radiating a terrifying power capable of scorching the heavens and boiling the seas.

However, faced with this attack powerful enough to split mountains and cleave seas, Elders Qingshan and Qingmu exchanged a knowing smile, their understanding flowing naturally. They no longer fought individually, but their energy intertwined, becoming one.

"Azure Dragon Suppresses the Sea!"

"Ten thousand trees reach the sky!"

Elder Qingshan pressed down with one hand, and his immense battle qi transformed into an incredibly solid azure light barrier, like an ancient dragon scale, stretching across the front.

At the same time, Elder Aoki waved his sleeves, and countless ancient green vines, shimmering with rich vitality, coiled up from behind the light barrier, instantly covering it with a layer of incredibly tough wood grain containing endless vitality.

In the blink of an eye, the power of the Azure Wood and the Azure Dragon Wall merged perfectly, transforming into an indestructible azure barrier.

Rumble!
The Heaven-Burning Seal slammed violently into the combined attack barrier, producing a deafening roar.

The golden flames of the pagoda burned fiercely, yet they could not break through the layers of defense that combined strength and flexibility in an instant.

The flames clashed violently with the azure barrier, unleashing blinding light and surging air currents. Finally, the energy of the Burning Heaven Seal was exhausted, and it slowly dissipated. The azure barrier, after rippling violently, also quietly disappeared.

As the aftershocks of the energy subsided, the sky returned to a temporary calm.

The aura flowing around Lu Yu gradually subsided. He stood in mid-air, his face showing no sign of defeat, but rather a relaxed ease born of satisfaction. He smiled slightly at the two elders before him and cupped his hands in greeting:
"The two elders are both highly skilled, and their teamwork is flawless. Let's end our sparring here for today."

(End of this chapter)