I can gather experience beads

Cao Rui was very satisfied with the results of his retreat.

After completing the [Spiritual Pattern Casting Technique], you can start refining the signal tower.

As for the explosive needles, he decided to keep thirty high-quality second-level explosive needles.

As for the other second-order explosive needles, he took the time to go to the market and gave them to Sun Ming to sell.

This decision unexpectedly brought good news.

Once this second-level auxiliary magic weapon was released, it became very popular among the independent practitioners in the Qi Refining Stage.

All the second-level explosive needles were sold quickly, and Cao Rui received about 60,000 spirit stones in return.

By this calculation, he not only recovered the cost of more than 50,000 spirit stones he had invested before, but also earned more than 10,000 spirit stones in addition.

It was a pleasant surprise.

In addition, there is the second-level [Remote Transmission].

Cao Rui would set aside half of his time every day to refine weapons in order to improve his level of [Spiritual Pattern Casting Source Technique].

The remaining half of the time is used to engrave [Remote Transmission].

Through his unremitting efforts and diligent engraving, it only took Cao Rui three months to successfully cultivate [Far Transmission] to perfection.

Cao Rui gathered the experience beads of all the magic arrays from the inheritance house of the Equipment Refining Institute, but he had no time to accumulate the experience.

[Far Transmission] was also the first second-level magic array that Cao Rui mastered and perfected.

"When I have free time, I must practice all these magic arrays to perfection." Cao Rui thought to himself.

You know, except for the 0th-level magic array which is a gift from heaven and earth, all other magic arrays are created by humans.

Now, Cao Rui has completely mastered all the 0-level magic arrays, and as the number of high-level artificially created magic arrays he masters continues to increase, he has gradually developed some unique ideas of his own.

"However, it is conceivable that it will take a long time to really create a magic circle as imagined in one's mind." Cao Rui thought to himself.

After all, to create an innovative magic array, it is not as simple as piecing together the various array modules, but requires repeated attempts and modifications to ensure that each module can work perfectly together.

In this process, not only do you need to have a deep understanding of the principles of various formations, but you also need to have enough patience and perseverance.

However, this challenge made Cao Rui feel slightly excited.

He knows very well that only by constantly challenging himself can he truly improve his strength.

Therefore, he decided to start with some simple magic arrays when he had free time and gradually accumulate experience.

For example, when upgrading the Lingyin Jade Pendant, you can try to combine the level 0 [Sound Transmission] and [Image Transmission] to create a magic array between level 0 and level 1.

It is not necessary to enhance the power of the magic circle. It is also a good choice to enhance the function of the magic circle from the side and make the functions more diverse.

Cao Rui already has some ideas, but he still needs to experiment before he can develop it definitively.

In addition, Cao Rui also came up with other interesting ideas, such as adding a live broadcast function.

Through clever design of the magic circle, Cao Rui may be able to develop a magic circle to achieve this function.

Of course, to realize these ideas, it is necessary to make major changes to the existing magic array, which will undoubtedly increase the difficulty and risk.

But these are all things for the future, and Cao Rui quickly put away his imagination of the magic circle.

Because next, after the refining technique and the magic array are perfected, he can start refining the finished signal tower.

On this day, Cao Rui prepared a set of refining materials for a signal tower on his own, borrowed the second-level refining furnace from the Refining Institute, and began to refine the signal tower.

Signal tower, although Cao Rui called it a tower.

But in fact, the signal tower designed by Wu Qingxuan is only one meter high.

When activating it, the person activating it only needs to insert the spirit stone into it.

The signal tower is only used for communication, so it consumes very few spirit stones and one spirit stone can be used for a long time.

The structure of the signal tower magic weapon designed by Wu Qingxuan is very reasonable. It is the result of his hard work over the past few years, so Cao Rui did not make major changes.

Cao Rui used the [Spiritual Pattern Casting Source Technique] to refine magical instruments, which was completely different from the basic instrument refining techniques.

Unlike the basic refining process, Cao Rui, who has mastered the second-level refining technique, can perform refining and engraving arrays at the same time.

When the magic array is being refined, it will be engraved on the magic weapon in advance using the weapon refining technique.

In this way, the engraving of the magic circle will be more concealed, practical, and more effective.

After that, the Lingyin jade pendant that Cao Rui refined using the second-level refining technique would probably be even more effective.

"Well, the signal tower must be embedded with the contact frequency of the Lingyin Jade Pendant, and my Lingyin Point Rune System must also be added."

In Cao Rui's vision, the signal tower will be directly given to the person in power of the immortal cultivation force near the deployment point.

Cao Rui will give him the right to recharge Lingyin points.

Of course, the Lingyin points used to recharge their accounts must be purchased from Cao Rui with real Lingshi.

For every Lingyin points sold, Cao Rui would give rebates using the Lingyin points, and this is how they make money.

Even though the recharge amount of Lingyin Points is not large now, when the functions of the Lingyin Jade Pendant are opened up in the future, and the monks gradually recognize that Lingyin Points can replace Lingshi as the online transaction currency, the recharge amount of Lingyin Points will definitely increase greatly.

By then, signal towers will become very popular.

Every cultivator or force that owns the signal tower will maintain the signal tower on their own and will also become a loyal supporter of the Lingyin Jade Pendant and Cao Rui.

The refining of the signal tower lasted a whole day before Cao Rui successfully refined a perfect signal tower.

The perfect level of [Spiritual Pattern Casting Source Technique], the perfect level of the second stage [Remote Transmission].

The signal tower in Cao Rui's hand can be said to be made to perfection.

For the second-level [Remote Transmission] alone, Cao Rui had stacked and engraved as many as fourteen!

For a second-level magic weapon, the standard number of magic arrays that can be stacked is ten.

Fourteen magic arrays have completely exceeded the standard requirements.

Moreover, fourteen is not the limit. Cao Rui feels that after his proficiency in refining increases, Cao Rui can stack up to fifteen [Remote Transmission!] within the tolerance range of the materials.

"Let's try the signal tower's transmission range. It was originally estimated to be around a thousand miles, but now it should be far more than a thousand miles!"

Cao Rui was quite confident in his refining techniques.

After activating the signal tower.

Cao Rui then flew up on his sword and flew away into the distance.

Soon they were out of the mountain gate, and Cao Rui controlled the golden sword and flew quickly.

At an instantaneous speed of more than three thousand miles.

Cao Rui watched as the Lingyin jade pendant in his hand gradually lost its signal.

"Almost two thousand miles, an increase of twice!"

Cao Rui also did not expect that his perfect second-level weapon refining technique and perfect second-level magic array could bring about such a huge chemical reaction.

This means that the number of signal towers Cao Rui needs to deploy can be reduced by almost half!

Costs are greatly reduced!

"The number of Spiritual Pattern Mysterious Crystals is more than enough."

“However, the signal tower and the Lingyin Jade Pendant are consumables after all. There are only benefits and no disadvantages in hoarding Lingwen Xuan Crystals.” Cao Rui thought to himself.

After testing the range of the signal tower, Cao Rui flew up on his sword and returned to the mountain gate.