Chapter 176: Training in the Equipment Refining Academy

"Let's talk about what we have planned next." Wu Qingxuan happily accepted the storage bag containing 10,000 spirit stones and said.

Cao Rui said: "Judging from the sales volume of Lingyin Jade Pendant in Qinglingfang City, I think the time to install the signal tower has almost arrived."

"It's time to refine the signal tower and spread the signal of Lingyin Jade Pendant throughout the southwest of Yunzhou."

"Next, I hope you, Chief Wu, can assist me in refining the signal tower."

Wu Qingxuan nodded, "No problem."

"But the signal tower is a first-level magic tool after all. Including me, there are only seven or eight people in the weapon refining academy who can refine the signal tower."

Cao Rui heard this and said, "It's not a first-level magic tool, but a second-level magic tool."

"Second-level magic tool?" Wu Qingxuan looked surprised when he heard this.

"Second-level magic tool, are you sure there are so many spiritual pattern black crystals that can be used?"

The amount of spiritual crystals required for a second-level signal tower will increase several times. A signal tower requires at least several hundred kilograms of spiritual crystals.

Cao Rui glanced at the spiritual pattern crystal in the storage bag and nodded: "It's enough. If it is arranged as a second-level signal tower, the transmission distance of the signal tower will become longer, and the number of signal towers can also be reduced accordingly."

If thousands of signal towers were deployed as usual, it would be difficult to deal with them if they were vandalized, and it would not be in line with Cao Rui's plan.

There is no shortage of casual cultivators or demonic cultivators who specialize in doing bad things in the world of immortality.

Cao Rui is not planning to place signal towers in all areas.

In Cao Rui's vision, signal towers will be linearly distributed in all places where signals are necessary in southwest Yunzhou.

Then according to his own plan, he formed an interest relationship with the local cultivation forces.

Bind them by giving them the qualification to recharge, and for every spiritual sound point sold, 10% to 20% of the profit will be recorded...

No one would turn down a free lunch from the sky.

And in previous lives, weren't those mobile communications unable to reach some remote places? It also didn't prevent people from using mobile communications.

Because people will not go to those remote areas at all. Even if they go, they will be mentally prepared in advance.

For the world of cultivators, this is a better solution.

In addition to connecting areas where immortal cultivators are active, such as cities, sects, cultivating families, ruins, etc., there is no need to build signal towers in other areas where mortals live.

Most immortal cultivators will also take the initiative to avoid the mortal world where spiritual energy is thin.

In this way, coupled with the improvement of the signal tower level, the number of signal towers Cao Rui needs to consume will be greatly reduced.

Cao Rui made a rough estimate and found that according to this method, the number of second-order signal towers needed to connect the entire southwest of Yunzhou where the cultivating forces were located would only be less than a hundred.

If the refined signal towers are better, the number of signal towers required will be even smaller.

"The cost of a second-level signal tower is around three thousand spiritual stones. To install a hundred second-level signal towers would require three hundred thousand spiritual stones."

"It seems like a huge expense, but the investment is completely worth it, and half of the cost is in the spiritual crystals. The actual spiritual stones needed will be less." Cao Rui estimated in his mind.

After Wu Qingxuan paced back and forth for a while, he said: "According to your plan, the second-level signal tower can be engraved with the second-level [Remote Transmission]. I have not fully mastered the second-level [Remote Transmission]. I have mastered this method." Formation takes time.”

"And the refining of the second-level signal tower requires a foundation-building monk. I'm afraid I'm the only one in the entire weapon refining academy who can help you refining it."

Cao Rui nodded: "When I come back from this trip, I will go into seclusion to refine weapons and learn magic circles with you, Mr. Wu."

Wu Qingxuan heard this and said, "Since you have this intention, I am also happy to accompany you."

The two looked at each other and smiled.

So, Cao Rui and Wu Qingxuan began their retreat in the Weapon Refining Institute.

The two of them each had a refining room. When he had a problem, Cao Rui would humbly ask Wu Qingxuan for advice.

Wu Qingxuan had already figured out the materials for the second-level signal tower and there was no need to change them.

What Cao Rui needs to learn in seclusion is the second-level weapon refining technique and the second-level [Far Transmission]; Wu Qingxuan has already mastered the second-level weapon refining technique and only needs to hone the second-level [Far Transmission].

Wu Qingxuan generously taught Cao Rui a second-level weapon refining technique [Spirit Pattern Casting Source Technique].

This is a rather superior second-level weapon refining technique.

"Spirit pattern" represents the unique technique of spirituality and magic circle incorporated in the refining process.

Using this weapon refining technique to engrave runes will make it even more powerful.

"Casting the source" means refining materials and fusing elements to cast a magic weapon that contains the power of the source, so that the magic weapon not only has a powerful external performance, but also contains a profound inner heritage.

The second-level weapon refining techniques of this sect are quite profound.

Wu Qingxuan has practiced so far, but has only achieved a small degree of success.

However, after it is completed, it can greatly improve the speed, success rate and quality of the refined magic weapon.

Cao Rui quickly condensed the experience beads of [Spirit Pattern Casting Source Technique].

Cao Rui felt that he could integrate the basic weapon refining skills of the perfect level that he had previously practiced into the [Spirit Pattern Casting Source Technique].

Without hesitation, he immediately provided the perfect level of basic weapon refining skills to the [Spirit Pattern Casting Source Technique].

The added experience value is just enough to get started with [Spirit Pattern Casting Source Technique].

Later, Cao Rui synthesized the weapon refining plan in the weapon refining institute, processed it by himself, and customized a cheap second-level magic weapon for himself - a one-time use second-level auxiliary magic weapon, the hidden weapon explosive needle, the total cost was only More than a hundred spirit stones.

This explosive needle is exquisitely designed. Once it is fired, it will explode, releasing powerful force and causing considerable damage to the enemy.

However, for Cao Rui, this level of power is not of much practical use.

The power of Cao Rui's golden sword is greater than that of the explosive needle.

But if it is used by a cultivator in the Qi Refining Stage, it will become a terrible weapon.

Of course, for Cao Rui, he developed this second-level magic weapon refining plan not for actual combat, but to brush experience points for his [Spirit Pattern Casting Source Jue]!

By constantly practicing and using [Spirit Pattern Casting Source Jue] to refine the second-level explosive needle, Cao Rui can accumulate more experience in refining, so as to perfect the second-level refining technique and use the perfect [Spirit Pattern Casting Source Jue] to refine the signal tower.

Then engrave the second-level [Remote Transmission].

The second-level [Remote Transmission] is much more complicated than the first-level [Remote Transmission].

However, Cao Rui made rapid progress in engraving on the metal plate to brush experience points.

So.

Three months passed in the blink of an eye.

Cao Rui spent more than 50,000 spirit stones to purchase the raw materials for the blasting needle. After more than 500 times of refining, Cao Rui's experience in refining techniques rose rapidly.

In the initial attempt, Cao Rui inevitably failed in refining.

However, with the passage of time and the accumulation of experience, he gradually mastered the refining skills and continued to improve.

Finally, when he practiced the [Spiritual Pattern Casting Source Technique] to the realm of minor success, major success, and even perfection.

The second-level blasting needle he refined was not only powerful, but also had a success rate of 100%.

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