81_81900 In addition to the kind of high-level storage zài, among all the middle and low-level formations, in fact, the kind of formation with physical materials is the most lethal, and it is also the most difficult to defend, because such a formation is difficult to understand.

Taking the formation that Yun Tian is familiar with as an example, as far as he knows, most of the magic circles are based on the formation disk, which is formed by the illusion of aura, such a formation will sometimes cause a certain amount of damage to people, but most of the magic circles can only be used as auxiliary attacks, which will affect the enemy, but will not be fatal.

Because the magic circle is much lower than the Xuan array, in terms of killing output, even if there is such an arrangement, it can only use a special way to attack some parts of the people trapped in the array, such as the brain, lungs and other vital parts, and destroy the function of the opponent's internal organs through the powerful true air flow, so as to achieve the effect of killing the opponent.

It is precisely because the energy used by the magic circle is small and the damage to the human body is limited, so the form of the magic circle is mainly defensive array, auxiliary array, phantom array, trapped array, etc., and it is rare to see a killing array.

However, when it comes to the Xuan Array, it is different, because the Xuan Array has accumulated greater aura, its energy is so great that it can easily destroy other people's defenses, thus causing huge damage to the opponent's body, so when it comes to the Xuan Array stage, there are more attack arrays.

It's just that even if it is a Xuan Array, the lethality is still not enough for those high-level martial cultivators, so at this time, a new kind of Xuan Array has appeared, that is, a lethal Xuan Array combined with physical materials, which is also referred to as a killing array.

The emergence of the killing array has completely changed the dilemma that the formation is mainly auxiliary and has limited lethality, making the formation extremely lethal, this kind of formation is very dangerous, and it is also what most people who break the formation do not want to see.

It's a pity that the formation that Yuntian has encountered now is exactly this one.

When he judged that the formation he was facing was such a lethal Xuan Array, Yun Tian grinned and sighed at his bad luck.

How did you happen to encounter such a superb formation?

At the moment, he can't escape, because there is no way to retreat at this time, and the retreat of the space before he thinks about it has already been closed, which is forcing him to move forward and break through this road!

Yun Tian struggled for a while, and realized that no matter how he thought about it, this formation had to break himself before he could go on, so he put away his unnecessary thoughts and devoted all his attention to how to crack this dangerous and complicated Xuan Array.

Ironically, although Yun Tian didn't like to come into contact with this terrifying killing array very much, the first thing he had to do now was how to enter this killing array, because if he didn't enter this killing array, he could only stay on this lawn forever, and there was no other way out.

Yun Tian sighed, tried to calm himself down, and began to reflect more carefully on the process he had just experienced.

The courtyard wall can't be climbed over at all, so the only possibility to break the formation is to pass through the main gate in front of Guò.

Yun Tian hesitated for a moment, but still stepped forward and came to the door outside the big array.

The key to breaking the formation is to master the laws of the big array, and find a way to crack the weaknesses in its laws, so the most critical point of cracking a formation is to observe it closely, which is something that has to be done.

Yun Tian walked to the gate, and carefully observed the two vermilion gates again, the gate looked very simple, but there was nothing special, the material of the gate was difficult to say, but the tentacles were warm and smooth, and there was a feeling like jade, the gate was painted red throughout, but there were some copper nails on the door quite regularly.

Looking at the gate, Yun Tian's heart suddenly moved.

Could it be related to these copper nails? Thinking of this possibility, Yun Tian immediately stretched out his hand, and with a trace of true qi condensed in his hand, he tried to touch the copper nails on the door.

Sure enough, when his hand touched the copper nails, the originally unresponsive gate flashed suddenly, Yun Tian reacted quickly, and immediately saw that this light happened to be emitted by the many copper nails on the gate, and the moment his hand with true qi touched one of the copper nails, it seemed that all the copper nails had a chain reaction, and it was like a hundred responses, all the copper nails were connected to each other, and there seemed to be aura conducting before each other.

Yun Tian's spirits lifted, and he seemed to have found the key.

These copper nails should be the key to cracking the big array, Yun Tian carefully observed the copper nails on these two gates again, and under this look, he found that the copper nails on the gate were not arranged horizontally or straight, in fact, the arrangement of these copper nails was very particular, and it seemed to be arranged according to some special law.

This kind of law may indicate something, so Yun Tian sank his mind and carefully observed these copper nails.

There are a total of sixty-four copper nails on the two gates, the distribution of copper nails is irregular, the number of the upper is less, the number of the lower is more, and there are almost no copper nails in the middle part of the gate. Because of this, Yun Tian didn't recognize this pattern at first glance.

But thinking of this, Yun Tian's heart suddenly jumped. Could this be the key to the lack of yin and yang in the Taiji diagram?

Could it be that if the yin and yang in it are completed, this picture will come to life, and the door will be opened?

Yun Tian thought of this, so he decided to try according to this idea, but now he has made a difficulty, and he draws two points by himself? That is obviously impossible, but how to fill these two vacant yin and yang fish patterns?

If he said that he was making a set now, he knew that there were so many materials in the sea space that they might not be able to work?

Subconsciously, Yun Tian raised his head and swept to both sides.

"Huh?" suddenly lit up his eyes as he looked at the two tall stone pillars on either side.

A few zhang in front of the door, there are two stone pillars about one zhang high, the stone pillars are smooth and upright, and a small sculpture is carved on their heads. And Yun Tian saw that the tops of the two pillars were different, one was slightly convex on the top, like a chess piece, and the other was concave inside, more like a small tea cup.

A smile appeared on the corner of Yun Tian's mouth, and he jumped up, volleying off the two things at the tips of the two stone pillars, and then returned to the gate.

"It's up to you!" Yun Tian finished speaking, and pressed the two things taken from the stone pillar to the left and right of the gate.

With a dull rumbling sound, the door began to slowly open to the sides