I can gather experience beads

Spirit Beast Sect.

Lingfeng of the Equipment Refining Institute.

Cao Rui and Wu Qingxuan sat opposite each other.

"After two years, you have successfully established your foundation. Not bad, not bad."

"How many days will you stay in the Equipment Refining Institute this time?"

“Where do you plan to start?”

Cao Rui reviewed his previous achievements.

Basic weapon refining technique (level 0), mastered.

Familiar with more than twenty 0-level magic arrays.

Level 0 magic circle engraving, getting started.

After the foundation-building period, spiritual awareness increases greatly, and the weapon refiner can already begin to learn first-order magic arrays. In the late stage of foundation-building, he can even begin to come into contact with second-order magic arrays.

Cao Rui had never come across a first-level magic array.

Cao Rui's experience in alchemy is that the foundation of level 0 is also very important.

The basic knowledge of elixirs at level 0 laid a foundation for Cao Rui and was an important source of knowledge for Cao Rui to develop new elixir recipes.

If one wants to make innovations in the art of refining, the level 0 foundation of the refining array cannot be dealt with carelessly.

Cao Rui decided to focus on the basics of level 0 while learning the first-level magic circle with Wu Qingxuan.

After Wu Qingxuan figured out Cao Rui's direction, he decided to set aside a few hours every day to teach Cao Rui the first-level magic circle.

The rest of the time, Cao Rui learned to engrave the 0th-level magic array on his own.

Of course, the Spirit Beast Sect does not have so many magical weapons to refine.

But Wu Qingxuan has a way, he has a 'metal plate' specially used for practicing engraving magic arrays.

This metal plate is an alloy made by Wu Qingxuan himself. It is cheap and can withstand the engraving of the magic circle, but it cannot exert the power of the magic circle.

It is perfect for studying.

For Cao Rui, after discovering that engraving a magic array on this kind of metal plate can also increase the experience beads engraved on the 0-level magic array, he decided to use this metal plate to accumulate experience in the future.

On this day, in Wu Qingxuan's exclusive refining room.

Wu Qingxuan was explaining the first-level magic array knowledge to Cao Rui.

"Compared to the 0th-order magic array, the first-order magic array is only half the size, but the difficulty is more than ten times higher. Without the powerful spiritual sense of the foundation-building stage, it is absolutely impossible for the Qi-refining stage to master it like mastering some first-order spells."

"I will first teach you the simplest first-level magic circle, level 1 [Ventilation]."

Cao Rui took the metal plate and started engraving it following Wu Qingxuan.

Compared to the zero-order [Ventilation], the volume of the first-order [Ventilation] is reduced by nearly half, but its smaller volume carries more than twice the inscription lines.

Some fine lines even require spiritual sense to be detected and cannot be seen with the naked eye.

Although Cao Rui kept following Wu Qingxuan's pace, and Wu Qingxuan deliberately slowed down the carving speed to make it easier for Cao Rui to learn, Cao Rui still inevitably made mistakes.

In the end, Wu Qingxuan succeeded in engraving, and Cao Rui directly threw the metal plate into the smelting pool to re-smelt it to eliminate the magic circle and save it for next practice.

A first-level magic circle is really not that easy to engrave.

"Hmm? Experience beads?" Cao Rui's heart moved.

Cao Rui suddenly discovered that the experience beads of the first-level magic array [Ventilation] appeared in his mind.

The 1st-level magic array no longer appears in a unified '0th-level magic array engraving' format like the 0th-level magic array engraving.

The 0st-order magic array, which is more complex than the 1th-order basic magic array, condensed into an experience bead in Cao Rui's mind.

This further proves that the 1st-order magic array is much more difficult than the 0th-order magic array.

For ordinary cultivators, each level 1 magic array is extremely unique, and it takes more time to master it.

Cao Rui's mind was moved: "Master Wu, how many first-level magic arrays do you have?"

Wu Qingxuan smiled slightly: "Not bad, you have discovered the difficulty of the first-level magic array."

"In fact, because magic arrays become increasingly difficult to master as their levels increase, weapon refiners will eventually have no choice but to focus their learning of magic arrays on a single digit."

"I currently have five tier 1 magic arrays that I have fully mastered, but there are only two tier 2 magic arrays left."

"If you don't like the five first-level magic arrays I have, forget it... Come with me to a place."

Wu Qingxuan suddenly stood up. Although Cao Rui didn't understand why, he still stood up and followed him.

Wu Qingxuan took Cao Rui into the depths of the weapon refining institute.

In an unnamed lobby, there is a downward passage.

After entering the passage and walking down for a long time, a secret room surrounded by a simple warning array appeared.

Wu Qingxuan opened the secret room and took Cao Rui inside.

Cao Ru stepped into the secret room, looked around slightly, and a look of surprise flashed in his eyes.

This underground secret room is more than ten meters high, and the room is brightly lit with light.

The most eye-catching thing is the magic array rune patterns on the four walls, which have been magnified several times.

It occupies about one-fourth of the four walls evenly, leaving a large blank space on the walls.

Wu Qingxuan said: "There are a total of sixteen first-level magic arrays, nine second-level magic arrays, and four third-level magic arrays."

"This is the number of magic arrays passed down from generation to generation in my Spirit Beast Sect."

"Each array was carefully carved on the wall by the first weapon refiner in the sect and passed down. This room is also the inheritance room of our weapon refinery."

"If you learn a new magic circle in the future, don't forget to leave your mark on the inheritance."

Cao Rui nodded vigorously: "Can I retreat here for a while and choose a magic circle to learn?"

Wu Qingxuan gave an affirmative answer: "Of course you can, but if you want to learn a magic array that I don't know, without my guidance, the difficulty of learning will be greatly increased, so you have to be mentally prepared."

"I understand." Cao Rui nodded in response, thinking that since he had experience beads, the learning difficulty would not be much different.

Cao Rui decided to condense the experience beads of these sixteen first-level magic arrays in one breath, and then look at his own needs and slowly select a first-level magic array to practice intensively.

Seeing that Cao Rui wanted to stay here to learn the magic circle, Wu Qingxuan took the initiative to leave, giving Cao Rui time to study.

After Wu Qingxuan left, Cao Rui first looked at the names of the first-level formations on the wall.

Next to the formation runes, there are notes about the name and function of the formation.

Cao Rui quickly found the formation rune [Remote Transmission] that he wanted.

The first-level magic array [Remote Transmission] is a magic array that can transmit information over long distances.

It is a magic array that needs to be carved in most defensive formations to arrange voice transmitters.

The communication software simply arranged by using the first-level magic array [Remote Transmission] is at least a first-level magic weapon, and the cost is too high.

In the 0th-level magic circle, there is also a magic circle with similar function [Sound Transmission].

[Far EasTone] is actually an advanced version of [Sound Transmission].

The distance of [long-distance transmission] is about 10-100 miles, and the distance of [sound transmission] is only meters to meters.

Cao Rui's idea was to use the first-order magic array [remote transmission] to arrange equipment similar to modern signal towers.

Then he used the low-cost 0th-order magic array [Sound Transmission] to refine a 0th-order magic weapon-level communication equipment and sold it to the general public.

The entire southwest of Yunzhou is approximately 40,000 miles long and wide, which is about the size of three or four Chinese countries.

It would be difficult to spread signal towers throughout the southwest, unless Cao Rui could develop a second-order [remote transmission].

However, it was extremely easy for Cao Rui to establish a communication area with Qinglingfang City as the center and deploy signal areas in some important locations.

For example, if you set up a signal area across the southwest of Yunzhou, you only need to deploy about 400 signal towers.