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Returning to the Shenshan Cave Mansion, Zhen Yinjian began to sort out the content of the formation taught by Lu Yun. Because of taking into account Zhen Yinjian's formation foundation, the formation knowledge explained by Lu Yun is not deep, and with Zhen Yinjian's realm comprehension, it is naturally easy to comprehend thoroughly.

According to his prediction, it might take him a few months to learn the way of formation from Lu Yun. In this process, he will also have more contact with Lu Yun. On the one hand, he can truly practice the profound Dan Dao, and on the other hand, Zhen Yinjian can also take this opportunity to contact Lu Yun to create conditions for the relationship between the two to heat up.

I continued to practice like this for more than ten days, and I communicated with Lu Yun many times. Zhen Yinjian's understanding of the way of the formation has reached a relatively high level. Even he's a little eager to try it out with his own hands!

After more than ten days of intimate contact, Lu Yun was amazed by Zhen Yinjian's extraordinary comprehension. After this short period of communication, the relationship between the two has been quite good, and some of the initial barriers have basically been eliminated.

Through Lu Yun's explanation, Zhen Yinjian estimated that he should be able to spend a few months or even half a year to complete the in-depth cultivation of the formation method, reaching a level comparable to Lu Yun, although Lu Yun may still not believe it.

Zhen Yinjian himself is very clear. The Immortal Body of the God Emperor itself is terrifying in terms of the improvement of comprehension. At the beginning of the Innate Realm, his improvement was not very obvious, but in the current Casting God Realm, his comprehension was something that ordinary monks could believe.

Therefore, even in the more than ten days of teaching, Zhen Yinjian maintained a low-key attitude, and was more humble in front of Lu Yun, unwilling to show his complete understanding of the Dao.

It's not that I can't believe Lu Yun, it's just that there are other reasons for this. After all, he had already sensed that Lu Yun had underestimated his level of formation comprehension, and obviously judged his level of attainment in the formation in order to truly judge it. It's not good to embarrass her by taking advantage of her!

And now, Zhen Yinjian's understanding of the formation path has penetrated deep into the trapped formation and the killing formation.

The formations of the trapped formation and the killing formation are inherently complicated, and in fact, there are not many monks who can cultivate these two formations to a higher level. On the way to the formation path, the vast majority of monks did not study the categories of trapped formations and killing formations, and even if they majored in these two categories, they often stayed at a low level.

In fact, most of the Array Dao cultivators mainly practiced the two major categories of Phantom Array and Combined Array. The former is mostly used for the protection of secret realm families, while the latter is mostly a technique for monks to jointly improve their actual combat ability.

As for the reason why there are fewer monks who study the trapped array and kill the array, it is also very simple, the trapped array needs the monks to use the laws of heaven and earth or terrain treasures, and they need the monks' higher realm, and they need heaven and earth treasures, otherwise they can't play the role of the trapped array!

The difficulty of killing the formation is even higher, and like the trapped formation, the monk also needs to use the power of heaven and earth to accumulate killing opportunities and form a lore momentum. If the monk's realm is low, he will also not be able to accumulate enough killing power to inflict fatal damage on enemies within the battle law.

What is more difficult than the trapped formation is that the killing formation pays more attention to the study of heavenly power and geographical advantages, which makes the control of the formation very difficult. But once a qualified killing array can be condensed, it can often have the effect of slashing a hundred!

The trapped array and the killing array were both the most famous existences in the Middle Ages. You must know that in the Middle Ages, the monasticism flourished, the gods and demons rose together, and the heroes competed for hegemony. The existence of the Ruzhu God Realm is just a small shrimp. Hundreds of millions of mountains and rivers were full of monks, and the number of monks was far from comparable to what it is now.

During that period of time, the power of cultivating the Formation Dao split the earth into a formation, trapping the monks of a Divine Prefecture with a trapping array, and using the Heaven and Earth Killing Opportunity to kill millions of people with the killing array, that period of history was too glorious for the Formation Dao monks, and it is still their favorite history to talk about today.

It's just that with the decline of the aura of heaven and earth, the fall of gods and demons, and the vicissitudes of life. In ancient times, I have never seen a powerful trapped formation and a killing formation, and I have never seen the power of the formation that affects the life and death of people with the formation path!

In this way, the inheritance of the most brilliant array sects in the Middle Ages was also cut off and annihilated in the long river of time. Among the only remaining array classics, there is not much content about trapped formations and killing formations.

Despite this, Zhen Yinjian is still most interested in trapping and killing the second formation. There is no other reason, the so-called phantom formation, combined formation and other formations are of little help to him. With his realm, if he delved into the way of such a formation, it would not be of much use!

The trapped array is different from the killing array, the trapped array can protect a place and a city, and the killing array can kill a large number of invading enemies, and it can save its own strength, which is a very useful formation.

As for the formation classics of these two major categories, Zhen Yinjian, as the ancestor of Donghua Palace, had also seen two such classics in the treasure house of the sect. This was exactly what he wanted.

First of all, he took out the book of the trapped array that was treasured in a corner of the depths of the Donghua Imperial Treasure House. The main realm of this formation book called "Prison Bull Divine Law" is a formation called "Prison Cow Trapped Formation". It not only records the realm required to practice this formation, but also explains the materials required to establish this formation.

Like Dan Dao, the formation is by no means rootless water, and it also needs to use some spiritual materials and strange things to trigger the big array.

Only when the grade of these spiritual materials and strange things is high enough can the "Prison Cow Trap Array" play its due role.

Opening this array book, Zhen Yinjian took a closer look at it, and immediately understood why this precious array book was hidden in a corner of the treasure house that no one knew.

This formation law book makes it clear that in order to fully exert the role of this array, the monk must reach the level of the fivefold realm of the God Casting Realm! No wonder even the Eastern Heaven Ancestor did not include it in his private treasury!

It turned out that his realm had not yet reached this level, and this array law book had not been used. And not only him, but the entire Donghua Imperial Court has no one who can reach the realm of cultivating this formation, no wonder it has been dusty for a long time, and no one cares!

Continuing to open this book of "Prisoner Bull Divine Law", Zhen Yinjian scanned the content of this array path classic with one glance and ten lines. There are only more than 1,000 words in total, and Zhen Yinjian quickly read it. I tasted it carefully, and then I did it a second time.

After reading it, he thought about it four or five times, so that Zhen Yinjian could ensure that he had understood the accurate content of this Array Dao classic.

This formation is called the Prison Ox Trap Formation, which is a formation created by simulating the eldest son of the Nine Sons of Lailong. This formation is based on spiritual materials such as Red Dragon Gold, Yu Yuan Stone, and Xiaohu Worm, and then uses the spiritual laws of heaven and earth as a guide to build a large array that runs across one side, which is enough to trap the enemy for 10,000 years.