For the communication jade slips, the most important thing is the production of the communication formation. As long as the communication formation is understood, the production of this set of communication jade slips will become simple.

Under normal circumstances, there is only one main array and one auxiliary array on the Shangxia Jade Slip.

But like the one-to-many communication array, it has a main array and multiple auxiliary arrays. Therefore, there is a main array and multiple auxiliary arrays.

Since the formations of each sub-array are different, one main array can send a message to any of the sub-arrays independently, while the other sub-arrays will not receive the message from the main array.

Conversely, no matter which sub-array sends a message, the main array will receive it, but other sub-arrays will not receive it.

In this way, the outer king and the city lords of the nine border cities no longer need to prepare nine sets of jade slips for communication, which is too troublesome.

This thing sounds simple, but it is a bit troublesome to actually do it.

Let’s not talk about one main formation and nine auxiliary formations. Even if there is one main formation and two auxiliary formations, the situation will be much more complicated.

Therefore, it will naturally take longer to create a communication formation with a main formation and nine auxiliary formations.

However, if you have one such formation, it will be much easier to transform multiple sets of similar one-to-nine communication formations.

"Anyway, I have to study a set of jade slips for multi-person communication. Please return the jade slips that I gave you just now, and I will prepare a similar set of communication slips for you and the elders in charge. In that case,

I don’t need to prepare so many sets of jade slips!" Cheng Yu said.

Because there are still seven chief elders, he has to prepare seven more sets of one-to-one messenger slips.

In this case, there are too many types of communication jade slips in his hand. Since he originally had to have a set of one-to-many communication jade slips, then changing the formation on this basis would be better than making seven new sets of one.

It is easy to send jade slips to one person, and it is much less troublesome.

"Okay!" The foreign king nodded and returned the jade slip to Cheng Yu without any hesitation.

Anyway, there is a new jade slip, and there is no loss for him, so there is nothing to hesitate.

"Let's find a suitable place to rest for a few days. It may take a long time." Cheng Yu said.

"Then can I let them go back to Bai Yang Wai Chao first? After all, so many people staying here is not only a big goal, but also inappropriate." Wai Wang asked.

"Of course it's okay, but I have something to discuss with you first!" Cheng Yu looked at the elites in Baiyang Waichao and said.

"Master, please speak!" Cheng Yu's generosity made the foreign king feel extra generous, and the other party only had something to discuss, so he naturally had no precautions.

"It's very simple. I want you to provide some elites for my Cheng family!" Cheng Yu said.

"I wonder how many people the young master wants?" When the foreign king heard that Cheng Yu wanted to ask him for people, he felt a little regretful.

I felt that I was really overjoyed. No wonder the young master was so easy to talk to this time, but I have to say that the method of making the jade slips that Cheng Yu gave him was really tempting.

If he doesn't agree to the young master's condition, he doesn't know if he can successfully obtain the method of making the messenger slips?

Moreover, if the young master doesn't need many people, it doesn't matter.

"Five thousand people!" Cheng Yu stretched out his five fingers.

"Five thousand people? Young Master, is this a bit too much? These 10,000 people are the elites of my royal family and Luo family. If I and the seven chief elders share the burden, I don't think five thousand people are too many.

But if Elder Luo and I are to share the burden of so many masters, I think firstly it would be unfair, and secondly we really can’t afford it!” said the foreign king in a somewhat embarrassed tone.

"Even so, I won't let you provide it in vain. I can help you improve the strength of all the remaining five thousand elites. How about it?" Cheng Yu said.

"Improve the strength of five thousand people? This seems useless, right?" said the foreign king.

The strength of these people is already very good, and it is not an easy task to improve their strength.

It makes no sense at all for Cheng Yu to randomly improve everyone's strength like this. It can even be said to give them some resources casually. Is that also called improving everyone's strength?

However, he had to give away 5,000 people for nothing. Even if these 5,000 people were divided half with Luo Mansion, he would still have to hand over 2,500 people.

This deal is not worth it no matter how you calculate it.

"I'm not talking about a casual improvement. A conservative estimate is that it will increase by at least 10% in a month!" Cheng Yu said with another finger.

"In one month, can these five thousand people increase their strength by 10%? Master, aren't you kidding me? If this is really the case, will you still lend troops to me?" The foreign king said with a smile.

He felt that Cheng Yu's words were too false. His five thousand people were not ordinary monks.

They are the real elites he carefully selected from the Wang Mansion and Luo Mansion. Maybe these people are not as powerful as those ordinary elders.

However, even ordinary elders cannot have such a large team. After all, such people are only a minority and cannot form an army on a large scale.

But these elites are the strongest force that can form an army on a large scale.

Because these people are all trained by the geniuses they selected, and the most important thing is that they are all masters in the tribulation period.

It is not easy to cultivate such a person, and losing one is a huge loss.

Of course, it is precisely because they are so outstanding that it is very difficult to improve their strength even if it consumes a lot of resources, it may not be able to improve even a little bit of time.

So regardless of what Cheng Yu said was 10% strength, in fact, for them, this 10% strength was actually a huge improvement.

If a low-level monk represents a value of ten thousand, a master in the tribulation stage represents a value of tens of millions. In other words, even if a low-level monk improves a hundred times, it will only be worth millions.

But a master in the Tribulation Stage has only improved by 10%, which is equivalent to millions. This shows how big the gap is.

However, for these elite masters in the tribulation period, it is more difficult than a low-level monk to improve a hundred times.

Because low-level monks still have a lot of room for improvement, but these masters have almost touched the upper limit of their own cultivation. It is extremely difficult to increase their strength by even one point, let alone 10% of their strength.

Therefore, Cheng Yu said that he could help him increase the strength of five thousand masters in the tribulation period by 10% in one month. It’s not like he didn’t understand, so how could he believe Cheng Yu’s unrealistic words?
Chapter completed!