At this moment, in his own home, Li Yunjing was cultivating Thunder Skill while pondering whether to refine a magical artifact related to Thunder Skill.
Using a magical artifact for assistance could unleash greater power of Thunder Skill.
Previously, utilizing the "Little Five Elements Array" to condense the "Five Elements Divine Thunder" had given Li Yunjing great inspiration.
With the assistance of arrays, the power of his Thunder Skill more than doubled.
If the magical artifact were to assist, the casting speed would be faster, potentially enhancing the Thunder Skill as well!
Thinking of this, Li Yunjing couldn’t suppress his excitement and was ready to refine a magical artifact!
Last time, after asking Yang Wenzheng’s master to help refine the "Five Dragon Wheel," Li Yunjing thought he should learn some artifact refining methods.
He didn’t want to rely on others forever.
However, Li Yunjing was well aware of his own level and would be satisfied with refining an ordinary magical artifact.
For this artifact refining endeavor, Li Yunjing intended to refine a magical artifact capable of summoning celestial thunder to exterminate evil demons.
As for the grade, he would be content with whatever he could produce.
He wasn’t aiming too high.
In the following seven days, Li Wutian informed his friends and then turned off his communication talismans.
During these days, besides resting, Li Yunjing dedicated almost all his time to refining a Great Seal!
He was planning to refine a four-sided seal to command all the celestial thunder and subdue all the demons.
One reason for choosing to refine a seal was because it was square and easy to make.
Moreover, Li Yunjing had a top-notch talisman brush and was well-versed in Talisman Dao and Array Dao, allowing him to engrave more Thunder Skill runes on the seal.
After careful consideration, Li Yunjing felt that this was the simplest shape for a magical artifact.
To ensure success, Li Yunjing used all the turtle blood from a Tier Two Black Turtle to practice engraving thunder runes.
Through repeated experiments and a willingness to invest, Li Yunjing’s skills in Talisman Dao also improved rapidly.
The turtle blood, which could originally produce Tier Two talismans, was eventually turned into over a hundred top-tier Tier One "Five-Thunder Talismans" by Li Yunjing.
If a Tier Two talisman maker from the sect saw this, they would definitely curse Li Yunjing for being wasteful.
However, Li Yunjing was very satisfied with his progress.
Through practice, he had become extremely proficient in painting the "Five-Thunder Talisman."
These talismans were immensely powerful, each one equivalent to a full-force strike from a Qi Cultivation Realm cultivator at the Great Perfection stage!
They were excellent for self-defense and defeating enemies.
Li Yunjing planned to keep some for himself, pick a few to give to his friends, and send the rest to the Star Moon Trading Company as treasures for the store.
In a place like Red Sun Market, top-tier Tier One "Five-Thunder Talismans" would undoubtedly be in high demand, fetching a high price.
Having the "Five-Thunder Talismans" gave the Star Moon Trading Company another selling point to attract customers.
During these seven days, besides painting talismans, Li Yunjing also practiced carving intricate array diagrams of the "Five Thunders True Method" based on the "Little Five Elements Array."
The array diagrams were intended to be engraved on the Great Seal magical artifact.
These exercises in array carving took another seven days from Li Yunjing.
Only when he could carve the weakest version of five types of Thunder Skills in a three-inch space did he feel completely satisfied.
Certainly, Li Yunjing couldn’t master the "Mustard Seed into Mount Sumeru" technique to carve a complex array in such a small space.
This was a great regret for him.
However, combining his cultivation in Talisman Dao, Array Dao, and Thunder Skill to refine a magical artifact was already an extremely difficult feat.
With everything ready, Li Yunjing took out a Celestial Thunder Stone and began to carve it.
This Celestial Thunder Stone, square in shape, was undoubtedly the perfect material for the seal’s body.
However, typical practitioners could not handle the Celestial Thunder Stone, which continuously emitted sparks, causing numbness.
Only someone like Li Yunjing, with an affinity for lightning, could carve it comfortably.
Rather than feeling pain, Li Yunjing found the numbing sensation of the electric current entering his body addictive and extremely enjoyable!
In one hour, Li Yunjing had carved the Celestial Thunder Stone into the shape of a Great Seal, and then began more complex operations.
The "Celestial Thunder Emperor’s Seal" was densely engraved with runes by Li Yunjing, especially the seal’s name, "Thunder Emperor Seal," which he inscribed on the face of the seal.
The Black Turtle’s blood seeped into the "Celestial Thunder Emperor’s Seal," tinting the light blue seal with a layer of crimson.
This "Celestial Thunder Emperor’s Seal" also incorporated many rare materials and constructed a stable array within it as the core.
After three days and nights, the "Celestial Thunder Emperor’s Seal" was finally completed.
However, its quality only reached the peak level of a low-grade magical artifact.
Li Yunjing, having used a large amount of tier two and top-tier tier one materials, felt a bit speechless about the low-grade result.
Yet, having succeeded in the refinement, it was at least somewhat comforting.
Also, due to the materials used, there were many openings left for future upgrades.
Li Yunjing still hoped that one day, he would refine his skills in artifact making, Array Dao, and Talisman Dao to the peak and enhance this seal to a higher level.
This was the first treasure he had ever refined!
It held great significance for Li Yunjing.
Li Yunjing was very fond of this "Celestial Thunder Emperor’s Seal."
Since its completion, he had almost always held the "Celestial Thunder Emperor’s Seal" daily.
Every day in his cultivation, Li Yunjing would suspend the "Celestial Thunder Emperor’s Seal" in front of him and further temper and refine it with his "Five Thunders True Method."