At the beginning, the portrayal of the Nine Heavens Sealing Demon Array had gathered three formation masters, and it took more than a day to depict at least 10 million spirit pattern carving lines, which was much more complicated than this Jiao Yan's homing.

The Nine Heavens Demon Sealing Array is perhaps one of the most complex formations today.

Master Lu Xianshi asked everyone to start figuring out this formation technique, and everyone didn't dare to slack off, even if they couldn't understand it, at least they needed to pretend. Moreover, there were many innate array techniques that they could not usually access as Zhongtian disciples, and they knew that they could not learn them, so they could occasionally see one or two innate array techniques, and everyone was very excited.

Of course, it was not for nothing that Ancestor Lu took out this innate formation technique, his ultimate goal was still for that mysterious genius. That genius didn't dare to show his face for so many days, so he planned to try to teach all the Zhongtian disciples the Innate Formation Technique, and then secretly observe the situation of each Zhongtian disciple learning the Innate Formation Technique.

As long as anyone can master even a little bit of this formation technique, then needless to say, they will know that this person must be that shy genius disciple!

The formation is divided into fixed formation and moving formation, and the fixed formation refers to finding a suitable terrain and using the advantages of the terrain to arrange the formation. The finished formation cannot be moved at will, for example, "Glowing Bright" is a fixed formation, there are other sects' mountain protection arrays, guardian formations, and spirit gathering arrays, as well as formations used to test beginner disciples, and the starry sky formations of the advanced hall, all of which belong to fixed formations.

And the Array Movement refers to the array technique that can be carried with him at any time, similar to the original Deadwood Daddy's use of the Blood Jade Ink Crystal Fusion Seventh-Order Explosive Pill to almost kill the heavens, and the Exploration Array Technique used by Ji Wenkai just now, the "Jiaoyan Homecoming" performed by Master Lu all belong to the Shifting Array.

Moving formations requires the use of formation bases, and each formation master will find several good formation bases to refine for their own use, and all the formation techniques that can be cast at any time are actually pre-engraved on the array base with abundant spiritual energy, and when used, it can be directly driven by spiritual power.

Mu Yu looked at the complex formation carefully, those spirit pattern carvings that looked chaotic in the eyes of outsiders, but he could easily understand them. All formations are based on gossip as the prototype to be flexible, as long as you grasp this law, the principle of each spirit pattern carved line can be clarified.

Combined with the main points given by Lu Xianshi, it took Mu Yu less than half an hour to memorize the general idea of "Jiao Yan's homecoming". But he was not in a hurry to carve this formation onto his own formation, he knew that Ancestor Lu's eyes were staring at all the Zhongtian disciples at the moment, wanting to find out someone who was acting abnormally, so as to identify that mysterious genius.

Since he didn't plan to expose himself, he was still cautious, first memorized this formation, and then went back to secretly find a place where no one was around.

The morning lecture time passed quickly, but to the disappointment of Master Lu, he didn't see a single Zhongtian disciple who behaved abnormally, but his eyes soon lit up, and at the same time, there was a little self-satisfaction.

Because if none of the Zhongtian disciples present had made any achievements in this formation, then it was very likely that that mysterious genius was among the forty-five Zhongtian disciples who went out on a mission!

"Narrow down the scope first and then close the net, I won't believe I can't find you!" Ancestor Lu was secretly proud of the plan he had come up with!

To be honest, Ancestor Lu is much higher than Mu Yu in terms of strength and cultivation, usually he is a very stable Ancestor, but the fact that a disciple of Zhongtian has the potential to become an innate disciple almost makes him happy, which is very important for the future of the Array Sect, and he has to pay attention to it.

After class, Mu Yu quickly left the Advanced Hall and went to find a place where no one was there to prepare to practice this Jiao Yan's homecoming, while Ancestor Lu was anxious to find Ji Wenkai to ask for the list of absent Zhongtian disciples. As for the other Zhongtian disciples, they don't seem to understand this formation, as long as a spirit pattern carved line can't understand the meaning of its existence, then there will be problems in the process of using the entire formation, the point is that they can't understand not just one, but hundreds!

There are many large mountain ranges in the array area, and it is not difficult for Mu Yu to find a place where no one is around. He dodged into a wood, and used spirit stones to simply enclose a phantom array and a vigilance formation to disguise himself.

He began to recall the key points of "Jiaoyan Homecoming" in his mind, and the first time he depicted this formation, he chose to depict it directly on the ground. The process of portrayal took a lot of time for Mu Yu, he didn't have the ability to never forget, that kind of thing was too mysterious, but he mastered how each spiritual power carving line of this formation technique worked, so when depicting, he was still able to completely portray the "Jiaoyan Homecoming" through deduction.

It took two hours to depict all the spiritual power lines, and a few erroneous spiritual power lines were slightly modified according to memory and deduction, and this process had to ensure that the spiritual power on the body was sufficient to maintain the spiritual power circulation of the entire formation.

The next step is to lay down the formation base, which is to provide aura support for a formation, which is an essential step for the formation. The most common formation base is the spirit stone, not to mention anything else, there are a lot of spirit stones and wood feathers. But when he placed more than a hundred spirit stones on the formation, he was just about to cast the formation, but he found that the entire "Jiaoyan Homecoming" formation had just flashed and was extinguished in the blink of an eye, without any movement!

"What's wrong?Is it my spiritual power that I drew the wrong spiritual power line?" Mu Yu calculated six hundred and seventy-two spiritual power lines, and he understood the role of each one and the cooperation between each other, and found that there was no problem.

He turned his attention to the formation base, and was surprised to find that more than a hundred spirit stones had turned into a pile of waste stones at some point!

"Jiao Yan Homecoming" just flashed just now, and the aura of more than a hundred spirit stones was consumed!

Mu Yu secretly smacked his tongue, a hundred spirit stones had already sacrificed to the heavens before they had any effect, it was really fast!

He directly used 10,000 spirit stones this time, pondering that 10,000 spirit stones should be enough. However, what made him feel crying and laughing was that the ten thousand spirit stones maintained two breaths and once again calmed down the entire formation!

"Becoming a formation master is really a money-burning profession!" Mu Yu muttered.

Obviously, if Master Lu didn't tell him that if he wanted Jiao Yan to return to the nest to work, ordinary spirit stones would not work. Mu Yu also has some acquired array base and Zhongtian array base on his body, the acquired array base is similar to the spirit stone, you don't need to think about it, the aura of the Zhongtian array base is estimated to be not much better, since "Jiaoyan homing" is an innate array technique, then naturally use the innate array base.

Mu Yu rummaged through the Qiankun bag left by Father Deadwood for a while, and turned out more than a hundred innate formation bases. Unexpectedly, as soon as he took out the innate formation base, Xiao Shuai happily opened his mouth wide and bit it, and was slapped open by Mu Yu.

"Even Jinji, you eat it, tell me what else you don't eat?" Mu Yu scolded.

Xiao Shuai looked at the innate formation base in Mu Yu's hand with a blank eye, and said miserably: "The taste of the innate formation base is several times better than that of the demon spirit, I can't help it." ”

"If you can't help it, just go eat!" Long Teng said in a voice on the side.

"Bah, I won't eat you!" replied handsomely.

Mu Yu didn't bother to pay attention to Xiao Shuai, and directly used the innate formation base to drive the "Jiaoyan Homecoming". This time, the formation finally flashed with a unique light, but its flickering light was actually black and white, completely different from the blue light of Ancestor Lu.

Mu Yu suddenly learned from Master Lu to mobilize five Jiao Yan, this Jiao Yan is really black and white, flying around Mu Yu, but both the momentum and speed are much slower than Lu Xianshi's Jiao Yan.

"Long Teng, hurry up, I'll do an experiment with you. "Mu Yu commanded the swallow and couldn't wait to try it on the dragon vine.

Long Teng reluctantly took off, and in an instant, Mu Yu commanded his Jiao Yan to attack Long Teng without saying a word, but Long Teng was very dexterous and dodged.

"Hey, why are you running so fast!" Mu Yu said helplessly.

"You're so slow, wouldn't it be a shame if I were hit by something so slow?"

Mu Yu was a little embarrassed, the speed of Jiao Yan that he conjured up was indeed several grades slower than that of Ancestor Lu, but he persuaded Long Teng to take the initiative to win this formation, and then he immediately felt that the spiritual power in his body began to be rapidly drained away by the formation.

"You try to attack me!" Mu Yu was eager to try!

Long Teng didn't say a word, he snaked his body and directly opened his mouth to spit out a cyan dragon breath, and slashed towards Mu Yu!

Then a little black and white interlaced light dot lit up on the tail of the dragon vine, indicating that the convergence point of the dragon vine was located on the tail when it gathered spiritual power.

"Hey, big earthworm, why is your cover door on your ass?" Xiao Shuai shouted in surprise, "You don't spit out your fart out of your mouth when you use Dragon Breath, do you?"

Xiao Shuai leaned forward and leaned back with a smile, and Mu Yu couldn't help laughing. Long Teng was furious, and the dragon breath that was originally rushing towards Mu Yu in the air actually turned a corner and rushed towards Xiao Shuai. Xiao Shuai was still laughing, and was suddenly hit by the cyan dragon's breath, and smashed a small handsome pit on the ground.

"Big earthworm, I'm fighting with you!" Xiao Shuai yelled in annoyance underground.

Mu Yu didn't make a move to attack the cover door of the dragon vine, as long as the cover door appeared on the dragon vine, it meant that this formation had achieved initial results. A Jiao Yan can show one of the opponent's cover doors, and if you want to use this formation against others in the future, you must at least ensure that Jiao Yan can hit a person first.

His Jiao Yan's speed was not fast enough, no matter how much he injected spiritual power into the Xun position, Jiao Yan's speed still couldn't be fast. Then Mu Yu found that when he was controlling this formation, he couldn't coordinate the degree of spiritual power control between the various spiritual power lines, which was the reason why the Jiao Yan he summoned was not agile enough.

Obviously, it will take more practice to fully master this formation.

Next, Mu Yu casually summoned dozens of Jiao Yan and danced in the air, wanting to master this formation more proficiently, but he hadn't done it yet, and the formation under his feet had stopped again!

"What's the hair?" Mu Yu looked at the innate formation base, which was originally a black ore, but at some point it had become an ordinary stone.

The aura is depleted!

"Damn, I just used the aura of the innate formation base ten times to run out?" Mu Yu was stunned, no wonder they all said that the formation master was powerless, they had to take into account the consumption of the formation base aura when performing the formation technique, once the formation base aura couldn't keep up with all the formation techniques, they had to finish playing!

"Although these innate array base auras are more than those Zhongtian array bases, your formation technique is too aura-consuming, so you can't use it casually. Unless you can find the purple light polar jade and blood jade ink crystal that Deadwood Daddy used at the beginning, the aura contained in these two formations is really what makes me greedy!" Xiao Shuai drooled.

"Forget about the Blood Jade Ink Crystal. Mu Yu shook his head, he wouldn't use the Blood Jade Ink Crystal, there was still the soul of the sleeping Dead Wood Daddy inside!, and although Xiao Shuai was delicious, he wouldn't fight the idea of the Blood Jade Ink Crystal.

However, if you don't have enough innate formation foundation, you can't try to practice more esoteric formation techniques, and this will be difficult.

The identity of such a loser as a formation master is really not something that anyone can deserve.