After meeting with Qing Lian and Zhan Huantai again, Duan Gujin handed them two bottles of Heavenly Saint Divine Pills, then found a secluded place to start cultivating the Rule Battle Spear of the Giant Demon Dragon Elephant Martial Soul.

The Rule Battle Spear was a martial skill taught to him by Zhao Wuji on the Jiuzhou Continent. Duan Gujin had witnessed it when Zhao Wuji fought against the Divine World experts lurking on the Jiuzhou Continent, and a black long spear suddenly appeared in the sky.

From the Divine Thought left by Zhao Wuji, he learned that the black long spear was formed by Rule Power.

To form a Rule Battle Spear, one must have the cultivation of a Martial Saint, as well as strong Spiritual Power.

Back on the Jiuzhou Continent, he had only grasped some tricks of Rule Power.

Moreover, he didn't want to use Zhao Wuji's Rule Battle Spear.

If people from the Immortal World recognized the martial skill he used as Zhao Wuji's Rule Battle Spear, he would be in big trouble.

From the Divine Thought passed on by Zhao Wuji, he knew the Rule Battle Spear could almost ignore all defenses. He understood that this ability of the Rule Battle Spear was terrifying.

Previously, when he had just entered the Martial Saint Realm, his Primordial Power and Spiritual Power were not stable, and he couldn't yet cultivate the Rule Battle Spear.

But after some time of settling down, he found that his Primordial Power and Spiritual Power had completely stabilized, and he felt it necessary to cultivate the Rule Battle Spear martial skill.

The reason he wanted to cultivate the Rule Battle Spear was to use its ability to ignore Rule Power to deal with some prohibitions or enemies.

"I don't have any powerful Dark Weapons at the moment, the ones I made can only deal with experts of the same realm, but if I encounter Shattering Void Realm experts, I need to prepare more!"

Duan Gujin was stumped by the problem he encountered at the Ancient God Ruins before. He knew that relying on his own strength alone he couldn't craft Holy Soldiers, so he could only cultivate martial skills that would increase his combat power.

He had pondered for a long time, comparing various martial skills, and finally thought of Zhao Wuji's Rule Battle Spear.

He had tried to practice the Rule Battle Spear before but had not succeeded.

However, after multiple practice sessions, he identified the problem.

At that time, his Primordial Power and Spiritual Power hadn't fully stabilized, and he was just a bit away from being able to perform the Rule Battle Spear.

After so many days of settling and improving, his current Primordial Power and Spiritual Power had reached the requirement to perform the Rule Battle Spear.

Therefore, he felt it essential to learn the Rule Battle Spear, to use it to tackle some prohibitions or powerful enemies.

He had witnessed Zhao Wuji perform the Rule Battle Spear, and had heard about how terrifying this move could be.

The Rule Battle Spear is a very special martial skill, to perform it, the spellcaster must possess the Giant Demon Dragon Elephant Martial Soul.

If the spellcaster does not have the Giant Demon Dragon Elephant Martial Soul, they cannot perform this move at all.

Duan Gujin began cultivating according to the steps for the Rule Battle Spear. He had rehearsed these steps countless times before, but had never succeeded, and each failure left him with a feeling of nearly succeeding.

Duan Gujin hoped that this time, he could truly succeed.

Countless Giant Dragon Elephant Essence Qi swirled within his body.

According to the cultivation steps, he condensed the essence Qi into the palm of his right hand.

Soon, a black long spear, about the size of a thumb, appeared in the palm of his right hand.

Although this black long spear was very small, looking at it, its entirely black color gave Duan Gujin a sense of reality and quality.

Duan Gujin took a deep breath, knowing he had successfully condensed the Rule Battle Spear into shape.

Previously, he had practiced forming the Rule Battle Spear many times, all ending in failure, but this time, he succeeded in one go.

Overjoyed, he exhaled a mouthful of stale air.

He knew that forming it was only the first step; next, he needed to merge the Rule Battle Spear with his right palm.

He had not yet reached the level where Zhao Wuji could casually manifest the Rule Battle Spear; he needed to fix the shape of the Rule Battle Spear in the palm of his right hand.

Once he encountered an enemy, he just needed to immediately channel his essence energy, injecting it into the palm of his right hand, and the Rule Battle Spear would instantly activate.

And when he had cultivated the Rule Battle Spear to the extreme, with a thought, he could quickly form it in front of him, or even transform it at a distance.

But merging the Rule Battle Spear with the palm of his right hand was by no means an easy task; this involved his mastery of Rule Power.

For a typical Martial Saint Realm martial artist, it would take at least six months to merge the Rule Battle Spear into the palm of the right hand.

Duan Gujin had a very good understanding of Rule Power, but it still took him a full ten days to merge the Rule Battle Spear into the palm of his right hand.

After the fusion, he consumed a sip of Ten-thousand-year-old Divine Milk to nourish himself and recover Primordial Power.

After five actual hours, his internal Primordial Power and Spiritual Power were restored to their Peak State.

During these days, he consumed at least ten bottles of Ten-thousand-year-old Divine Milk, assisting him in spending ten days to finally merge the Rule Battle Spear into the palm of his right hand.

He exhaled a breath, moved his mind, and started circulating his essence energy.

In less than three breaths, a Rule Battle Spear measuring two meters long appeared in the palm of his right hand.

He locked his Divine Sense onto a massive boulder ahead, releasing his right hand, sending the Rule Battle Spear to attack the boulder in front.

Swish!

The entirely pitch-black Rule Battle Spear transformed into a stream of light, emitting a rapid sonic boom, swishing rapidly forward.

Almost in a flash of lightning, he heard the massive boulder ahead shatter, followed by an intense explosion echoing in the void.

With a thought, a two-meter-long Rule Battle Spear appeared again in the palm of his right hand.

If his cultivation were strong enough, he could continue to manifest multiple Rule Battle Spears.

However, his current cultivation wasn't strong enough, and the consumption of the Rule Battle Spear was vast, making it difficult for him to withstand the immense drain of Primordial Power and Spiritual Power.

Duan Gujin clearly felt that wherever the Rule Battle Spear passed, the void seemed to collapse.

He could imagine that even if there were prohibitions or Arrays ahead, once the Rule Battle Spear was unleashed, the prohibitions or Arrays would instantly crumble.

"I should go back and see what the current situation at the Ancient God Ruins is."

Duan Gujin immediately returned and met with Qing Lian.

After listening to Qing Lian's report, he learned that the Ancient God Ruins had been reclaimed by the sea demons, yet there had been no intense battle between the two sides.

"It seems the Taihuang Immortal Sect cannot decipher the mystery of the Ghostly Desolate Land! They intentionally allowed the sea demons to reclaim the Ancient God Ruins!"

His eyes flashing, Duan Gujin thought of the Taihuang Immortal Sect's intentions.

After saying goodbye to Qing Lian, he dove into the sea.

He first transformed himself into a sea demon, then infiltrated the Ancient God Ruins.

After observing for a while, he discovered that not only was the number of sea demons guarding this place sparse, but their strength was also weak.