119: Chapter 119 "Sea Urchin" Version of Thunder Bead

In these ten years, Wang Bin didn't just focus on the research of the solar energy conversion array; he also created the Lei Sha Pearl.

The outer second-grade Materials of this Lei Sha Pearl were refined from a mixture of Lei Ling Jing and Xuan Yin Iron.

Wang Bin, following his own ideas, additionally added several other metals, hoping that through this alloy method, the Lei Sha Pearl could achieve the effect of both effectively isolating lightning and accommodating more lightning energy.

After all, in his previous life's understanding, alloys often possessed superior performance, hardness, and higher cost-effectiveness.

However, reality dealt him a heavy blow.

He initially thought that the alloy, meticulously improved and manufactured by him, would greatly enhance the power of the Lei Sha Pearl, but the result was contrary to his wishes.

The Lei Sha Pearl created by Wang Bin could only be considered a second-grade Early Stage disposable hidden weapon, and it could only cause fatal damage to Early Stage Foundation Establishment Cultivators.

This result greatly puzzled Wang Bin; he was full of doubts, initially thinking that there was a problem with his improvement of the Lei Sha Pearl's external metal.

Therefore, he decided to re-make a Lei Sha Pearl according to the normal Lei Sha Pearl refining process, attempting to find the problem.

But this time, the result was even more disappointing; the newly refined Lei Sha Pearl had even less power, only capable of killing Qi Refining Cultivators, and it couldn't even kill Early Stage Foundation Establishment Cultivators.

Such an outcome made Wang Bin almost completely give up on the research and development plan for this Lei Sha Pearl.

After all, it used second-grade Spiritual Materials, consumed a lot of effort and resources, but only refined a first-grade hidden weapon in the end, which was clearly a very losing business; it was not as cost-effective as directly purchasing flame explosion talismans.

Wang Bin racked his brains but couldn't find the reason.

Fortunately, Du Juan helped him find some valuable information about the Lei Sha Pearl from the Four Seas Commerce League.

Wang Bin felt as if he had found a treasure; after careful study, he suddenly realized.

It turned out that the power of this Lei Sha Pearl mainly depended on the lightning power it contained.

The Lei Sha Pearl sealed Gui Shui Yin Lei inside, and this Lei Sha Pearl was a unique hidden weapon of the Lei family in the Tian Yuan Empire.

To produce Gui Shui Yin Lei, not only did the Cultivator need to possess a lightning Spiritual Root, but they also had to learn the Lei family's exclusive Cultivation Technique.

Moreover, the higher the Cultivator's cultivation, the greater the power of the Gui Shui Yin Lei they released.

As for why the Lei family could produce family members with lightning Spiritual Roots in every generation, many people were deeply curious about this, but the Lei family always had a powerful Soul Transformation Realm Cultivator overseeing them.

Furthermore, it is said that a Lei Sha Pearl personally manufactured by a Soul Transformation Realm Cultivator can directly kill Nascent Soul Cultivators, so ordinary people would not dare to have any improper thoughts about the Lei family.

After learning this news, Wang Bin, out of helplessness, had to temporarily give up the idea of continuing to manufacture Lei Sha Pearls.

After all, the lightning released by his own Thunder Manipulation Array was just ordinary lightning, and its power was truly limited.

Time flew by, and one day, two years later, Wang Bin, in a sudden flash of inspiration, suddenly thought of another way to enhance the power of the Lei Sha Pearl.

He couldn't help but secretly regret, 'I was a science student in my previous life, how could I have been so fixated on the lightning power inside the Lei Sha Pearl and ignored a crucial point?'

Besides the impact force it generates, the iron pieces on the outside of a bomb are what's truly deadly!

As soon as he thought of it, Wang Bin quickly took action and began to improve the Lei Sha Pearl.

He decided to thicken the metal layer on the outside of the Lei Sha Pearl; his thinking was clear: the thicker the metal layer, the greater the impact force generated when the Lei Sha Pearl explodes.

After some effort, the improved Lei Sha Pearl's power indeed increased to a certain extent, capable of killing Middle Stage Foundation Establishment Cultivators.

However, compared to a true Lei Sha Pearl, its power was still far inferior, and this improvement method consumed ten times more Materials than a normal Lei Sha Pearl, making its cost-effectiveness truly too low.

Although this was not bad, Wang Bin was not short of money; if he couldn't use it himself, he could give it to his women and son for self-defense.

But he still wanted to improve it.

Wang Bin even once wanted to try using the 'one sulfur, two saltpeter, three charcoal' formula to make it.

But he was worried that this formula was too simple and easily learned by others, and he wasn't sure if the power of black powder could actually affect Foundation Establishment Cultivators.

The main reason was that he had not found sulfur, a key Material, in the vicinity, otherwise he would have really dared to try it.

However, Wang Bin had, after all, self-studied Artifact Refining knowledge for more than ten years, and deep in his memory, obsidian, which he had seen at an auction ten years ago, suddenly surfaced.

At that time, he was attracted by the astonishing sharpness of the obsidian and specifically asked Du Juan to purchase two hundred catties.

He rummaged through his Storage Pouch and found the obsidian, then carefully tested its sharpness again.

The second-grade fox fur, in front of the blade made of obsidian, was like thin paper, tearing with a single cut.

Although obsidian was somewhat brittle, Wang Bin felt that this problem was not unsolvable.

After Wang Bin's careful improvement and design, a brand new 'sea urchin' version of the Lei Sha Pearl was born.

Its manufacturing method involved embedding more than a dozen sharp spikes made of obsidian on the outside of the Lei Sha Pearl; to overcome the brittleness of obsidian, Wang Bin also specifically wrapped a layer of metal around the spikes, only exposing the tips.

When this 'sea urchin' Lei Sha Pearl was completed, Wang Bin decided to test its power.

He guessed that the power of this new type of hidden weapon should not be underestimated, so he was extra careful when testing it.

He specifically ran to a place nine hundred meters away, dug a hole in the ground, and then used his Divine Sense to remotely control this explosion experiment.

With a loud bang from the 'sea urchin' Lei Sha Pearl, the powerful impact force generated by the explosion instantly scattered the obsidian spikes in all directions like a celestial maiden scattering flowers.

Two black lights flashed, and the Spiritual Shield released by the shield talisman Wang Bin used for testing was instantly pierced by the spikes, creating two finger-sized holes, and then the entire shield shattered.

Wang Bin, seeing this scene from a distance, couldn't help but secretly congratulate himself for running far enough, otherwise, he might have paid a heavy price for this experiment, or even directly sacrificed himself here.

One must know that a Foundation Establishment Stage shield talisman can withstand multiple attacks from Foundation Establishment Cultivators, and its defensive power is definitely not bad.

Unexpectedly, under the attack of this 'sea urchin' Lei Sha Pearl, it was instantly pierced; this attack power definitely exceeded the attack strength of ordinary Foundation Establishment Cultivators.

The shock in Wang Bin's heart was indescribable, but his curiosity was also completely piqued.

To more precisely understand the true power of this 'sea urchin' Lei Sha Pearl, he gritted his teeth and decided to reluctantly waste a precious Mixed Origin Spirit Shield Talisman Treasure.

After much deliberation, he was still not at ease, so he continuously used five more shield talismans behind the Mixed Origin Spirit Shield, layering the defenses, before conducting the Lei Sha Pearl explosion experiment again.

As the Lei Sha Pearl exploded again, the obsidian spikes instantly turned into a black light, like a black lightning bolt, directly piercing through the Mixed Origin Spirit Shield.

Immediately after, it continuously penetrated the shields formed by three more shield talismans, and it was not until it hit the fourth shield that the obsidian spikes finally shattered.

Wang Bin's eyes widened in the distance, staring intently at the black-glowing obsidian fragments, his heart filled with indescribable excitement.

He knew that this Mixed Origin Spirit Shield was not an ordinary defensive Magic Treasure; even a Middle Stage Golden Core cultivator would have to expend considerable effort to break through it.

But he never expected this 'sea urchin' Lei Sha Pearl to be so powerful, piercing it instantly with just one strike.

At this moment, Wang Bin deeply realized that he had greatly underestimated the value of this obsidian before.

A thought instantly flashed through his mind: 'No, I must have Du Juan buy all the obsidian in the Four Seas Commerce League's warehouse.'

But as soon as this thought emerged, he immediately calmed down.

No, no, if he bought too much at once, it would definitely attract others' attention, and the price of this obsidian was not cheap; one Medium Grade Spirit Stone could only buy one catty.

His current Spirit Stone reserves simply could not support the cost of purchasing a large amount of obsidian, and he absolutely could not expose his intentions due to a momentary impulse.

Besides, the black spikes on each 'sea urchin' Lei Sha Pearl actually didn't require too much obsidian; one catty was enough.

Wang Bin tallied the remaining obsidian in his hand and found that it was enough to make more than a hundred 'sea urchin' Lei Sha Pearls.

After all, this obsidian did not conduct Spiritual Qi, and when making the spikes, he could only manually grind them into needle shapes, a process that inevitably wasted some Materials.

Wang Bin secretly estimated in his heart that this 'sea urchin' Lei Sha Pearl, with its powerful force, definitely reached the standard of a third-grade top-tier hidden weapon.

He believed that a Golden Core cultivator's shield or Physical Body would definitely be difficult to resist and would be instantly penetrated when facing the attack of this obsidian.

However, he still had some doubts; for Nascent Soul Cultivators, the situation was not easy to judge.

After all, Nascent Soul Cultivators are powerful, and unless this 'sea urchin' Lei Sha Pearl could explode unexpectedly and happen to have the obsidian needles penetrate their Nascent Soul, it would be almost impossible to kill a Nascent Soul Cultivator.

Moreover, this would have to be under the premise that the Nascent Soul Cultivator had not cultivated their body strength to the fourth-grade treasure body.

As for whether the sharpness of this obsidian could penetrate the Physical Body of a Nascent Soul Cultivator, Wang Bin also did not have a definite answer in his heart; all of this still required further exploration and verification.