Wisp of dark energy whirled around him as though he was a suction force as the blade in his hands turned pitch dark as it started to absorb light within itself.

Levi's arms began trembling as the energy gathered and compressed within the blade.

The Star Annihilation Slash was sucking out his energy like a hungry prostitute.

"Star Annihilation Slash!"

With a roar Levi slashed down through the air.

The moment the blade slash down, the dark energy around the blade suddenly seemed to have been flipped as it suddenly exploded outward, releasing massive amount of compressed energy outward.

An arc of golden energy burst forth from the blade's edge, realizing massive amount of destructive energy.

The blade arc was more than three meters wide as it distorted the air, moving through the air with the speed of a bullet.

"Ka-boom!"

The entire chambers shook and rumbled violently as though a meteor had descended.

The reinforced metal walls that were meant to not even deform underneath a peak genetic soldier strike was actually sliced through by the attack!

The energy had spread to the roof and the ground. There was a inch deep arc Marc that spread from the roof all the way to the wall and the to the ground.

One could even see the reinforced wall was still scaring hit as it glows a slight orange color.

This just showed how devastating the attack was!

Levi's face paled slightly and as he was about to fall, he staggered to catch himself.

He felt completely drained, as though every single drop of energy had been sucked dry from his body

His hands shook as he reached into his spatial ring and withdrew one of the bottles of Decade Condensed Jade Extract that he had received as a reward. He carefully uncorked the container and raised it to his lips and took a small sip of the liquid inside.

The extract tasted surprisingly sweet, like honey mixed with mint, and the moment it touched his tongue he felt energy filling his body.

The jade essence flowed down his throat and spread throughout his body, immediately beginning to replenish his energy. It was like pouring water into a dried dried plant.

Within perhaps thirty seconds of consuming the extract, Levi felt half his energy had been restored.

He started to think about the technique.

The technique came with severe limitations that prevented it from being used casually in combat. The most obvious problem was the energy consumption. That single slash had drained him.

Unless it was a life or death situation he most likely would not use this technique easily. It can count as one of his trump card.

Levi switched to cultivation mode and sat on the Gladine rock and opened the Eternal Dome Art manual.

He began reading through the book as his mind absorbed and processed the information inside of the book.

The technique was as complex as Star Annihilation Slash.

Unlike most defensive techniques that simply created a flat shield or barrier, this method required maintaining an equal flow of power to every single point across the entire surface of a sphere. Any weak spots or irregularities in the energy distribution would shatter the entire dome.

As Levi continued reading, he felt his Reading skill activating and things were much simpler compared to the first Sky Grade Technique as his mind process the book and comprehended the concept of the book even faster.

[Ding! Reading Comprehension has reached Level 7]

After about forty-five minutes of intensive study, Levi had read through the entire book and had comprehended the energy circulation as well as the little details to make him successfully activate the technique.

He closed the manual and placed it in his Interstellar Space ring, then activated the Practice mode of his room.

He closed his eyes and began to circulate his spiritual energy according to the what was detailed in the manual.

Unlike the aggressive inward compression required for the Star Annihilation Slash, this technique required a much gentler and more controlled approach. He needed to spread his energy outward from his core in perfectly even waves, like ripples spreading across the surface of a still pond, and then shape those waves into a three-dimensional sphere that would surround his body completely.

As he started it, his first attempt failed woefully and so did the next and the next after that.

The energy would spread outward correctly but then collapse almost immediately when he tried to shape it into a sphere.

But Levi didn't think of giving up as he continued to practice the technique.

On his seventeenth try, he finally felt something as the synergy between his energy flow, breathing technique and muscle movement flowed smoothly like a river.

Suddenly, a blue energy barrier spread out from him as it covered his entire body, finally stopping when it was about three meters in diameter.

"Haha. Finally!"

Levi sighed in relief as the energy barrier rippled like water. He was about to move and test the strength of the barrier using the two combat bots.

But his face changed slightly and then the barrier flickered like a hail of stone dropping into a calm lake. The entire barrier trembled and suddenly vanished as the energy faded back into the void.

Levi gasped as he felt a wave of exhaustion surged through his body.

Although he wasn't as exhausted as when he activated Star Annihilation Slash.

He quickly retrieved the Jade Extract bottle again and took another careful sip. As the energy flowed back into his body, Levi evaluated his performance with the Eternal Dome Art.

According to the manual, a practitioner at the Initial Stage of mastery should be able to maintain the dome for at least thirty seconds before energy depletion became an issue.

Levi had managed only ten seconds, which indicated he was still in the process of learning the technique.

Moreover, Sky-Grade techniques weren't meant for Warriors below FiendGod realm. But Levi with his massive amount of energy could barely be able to use it once. With practice and as his cultivation base grew stronger, he would be able to extend that duration.

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