The sharp sword in the sky roared and slashed, almost impermeable, as if it was invulnerable, but Yang Yan noticed a little, a point that was difficult to detect.

From the five swords small sword formation at the beginning to the three hundred and twenty sword small sword formation just now, there is one thing in common, the shape and grade of each sword are the same, and the current sword formation of six hundred and forty swords should also be exactly the same sword, Yang Yan originally thought the same, but after this investigation, he found that it was different from what he thought.

Six hundred and forty swords, the shape is exactly the same, and the grades are close to the level of the middle grade of the human rank, which is true, but I don't know when, there is an inexplicable extra sword in the rain of swords, and the shape of this sword is still the same as other swords, but after the sun is subtle, the perception of every subtle place around him has become keen, and the moment his mind swept over this sword, he felt that something was wrong, and then finally found the problem after several investigations.

The inexplicable extra sword, it is not close to the human rank of the middle grade, but it is a genuine human rank of the middle grade treasure, after it appeared, the entire sword array was centered on it to launch a thunder offensive, making the power of the sword array enhanced.

If there is no accident, this sword is the eye of the entire sword array, even if it is not, it is also the key to breaking the formation, Yang Yan, who is aware of this, is very sure.

Don't let go of any suspicious place, this truth, Yang Yan understood when he was very young.

Immediately, Yang Yan's eyes were firmly fixed on the sword, even if it slashed through the air extremely fast, even if hundreds of swords were coming towards him, he still didn't let go, he was looking for an opportunity, an opportunity to hit with one blow.

At a certain moment, Yang Yan's pupils tightened, and the sword that he was staring at slashed through the void and killed him, the killing intent was awe-inspiring, the sword intent was fierce, like a dazzling meteor, gorgeous but deadly.

"It's now!"

A touch of wisdom flashed from Yang Yan's eyes, how could Yang Yan, who had already been ready to go, let go of such a great opportunity, and immediately sealed his hands, and there was a quaint aura as thick as a mountain on his body, which made people palpitate, and at the same time, the aura in his body quickly shrank and dried up, almost being emptied.

The bright golden light shone, like a small sun, illuminating this piece of heaven and earth, and a mountain-like King Kong wheel appeared in front of Yang Yan's body, slowly rotating, exuding a strong and incomparable aura, full of oppression.

Donkey Kong Wheel Seal!

At this critical moment, the Donkey Kong wheel seal, which had not been used for a long time, finally reappeared at this moment, showing its grandeur, obviously Yang Yan was ready to go all out, leaving no room for anything.

This blow, if it doesn't work, it will be a benevolent!

Because, now that Yang Yan has stepped into the ninth level of quenching body, although the power of Donkey Kong's wheel seal has been significantly improved, it still consumes a lot, and about eighty percent of his aura has been drained.

"Go!"

Yang Yan pushed his hand hard, and the King Kong Wheel suddenly crushed forward, crushing everything, the air shook, and a rumbling sound came out, as if the space was unbearable to the oppression of the King Kong Wheel, and the momentum shook the sky.

Yang Yan's breath withered, his face was as pale as paper, but his eyes were firmly fixed on the front, the huge aura required by the Donkey Kong wheel seal coupled with the previous attrition, the strength of his body was drained by more than ninety percent, and it was difficult to support powerful moves.

"Ding, ding, ding!"

The Vajra Wheel crushed forward extremely quickly, and along the way, a sharp sword slashed at it, shattering one after another, and the fragments flew in all directions, but they only made it shake, but it could not be destroyed.

"Bang!"

A loud bang erupted in the space, the dazzling light made people unable to open their eyes, the human rank treasure weapon sword and the Donkey Kong wheel seal collided violently, the terrifying aura storm swept away, and the surrounding swords were affected by the pond fish, and they exploded in the terrifying explosion, and the shock wave swept away, and the sword that was far away was not destroyed, but it was also blown away.

The weak Yang Yan was even more like a weightless catkins that was rushed to the edge of the sword formation by the aftermath, and his five internal organs were slightly shocked, thanks to the extremely strong body that his body had been tempered, otherwise he would have been injured.

After a long time, the storm dissipated, and in the center of the collision in front of them, the fragments of broken swords that had been paved with several layers were all blown into powder, leaving a vacuum, and these swords were originally too low in grade and were cut off, where could they withstand it.

The Vajra Wheel has disappeared, and the sword of the middle grade of the human rank still maintains the posture of stabbing forward, a gust of majestic wind blows, shatters, and falls to the ground, it is in the center of the explosion, and the damage it bears is the greatest, even if it reaches the level of the middle grade of the human rank, it will be destroyed.

The sound of "clanging" came out, and there were no less than a hundred remaining sharp swords, but there were no new swords added to the formation like the original, but as if they had lost their strength, they fell on the ruins of the sharp swords, no longer roaring and killing.

Sure enough, the high-grade sword in the human rank is the key to breaking the formation, not the eye of the formation, it is almost the same, destroy it, and the sword formation will be broken.

However, this array is indeed unexpected, it is good for ordinary people to be able to save their lives under such a sword array, how can they have the heart to care, even if they want to find the location of the array eye like Yang Yan, it is difficult to find such a secret change, six hundred and forty swords suddenly and silently participate in the sword formation with the same appearance and extremely similar grade, who would have found it? If it weren't for Yang Yan who had already been subtle, and had always been extremely calm and careful to investigate, he would not have found it.

The sword array disappeared, and the fragments of broken swords all over the ground disappeared, leaving only a hundred or so well-preserved swords, lying quietly on the ground.

"Whew. Yang Yan exhaled heavily, relieved, ignoring the sword that fell to the ground, and meditated directly on the spot to breathe, the fourth layer is over, there is a test behind, and you must recover your strength first.

The Donkey Kong wheel seal is powerful, and even the mid-grade treasure weapons of the human rank can be destroyed, but the aura required is too great, unless it is at a critical juncture, it cannot be easily used.

After a long time, Yang Yan's pale face became rosy again, his whole body was full of spiritual energy, his strength was sufficient, and he returned to his peak state, and then he stopped the operation of the exercises and stood up.

Glancing at the hundreds of swords lying on the ground, Yang Yan's eyelids were all included in the Sumeru ring, indifferent.

The sword array has been broken, and the swords destroyed by him have all disappeared, and these remaining swords are obviously counted as his trophies, so he naturally has no reason not to want to.

Each of these swords is a sword that is extremely close to the middle grade of the human rank, but it is an extremely rich wealth for the power of the Taihua Sect, and it is enough to make countless scattered cultivators red-eyed, but they were taken away by Yang Yan so lightly.

For Yang Yan, these swords are naturally nothing, his Fire Flame Sword is a high-grade treasure weapon on the human level, but it is okay to use it to cultivate his own power, and he has a bigger idea in his heart.

He has seen the strength of the sword array arranged with a real sword, and it is enough to deal with opponents whose realm is much higher than his own, so is it possible to try it with a real sword when he gets a sword array in the future? Although the grade of these hundred or so swords is not too high, they are the same set, almost identical, and they resonate with each other.

And the biggest use of the sword array is still group battle, the lethality is very considerable, there are many people, and the space for everyone to dodge is limited to death, like the six hundred and forty swords just now, they can be wiped out in groups, of course, the premise is not to be broken by everyone.

If such a sword formation is used in a secular battlefield, it is enough to determine victory or defeat when the enemy and us are evenly matched, and even when they are at a disadvantage, they can turn the tide of fortune.

"Pass the fourth tier, trialists, please go to the fifth tier, and the rewards of this tier will be awarded after passing through the passage. A well-timed, not salty voice sounded out of thin air, announcing the passage of the fourth layer.

As the words fell, a light gate was created out of thin air in the main hall, much larger than the original, several feet high, as if symbolizing the glory of passing through this layer.

On the fifth layer, the difficulty is bound to be higher than the fourth layer, but Yang Yan has no reason to retreat, compared to this, he cares more about what the reward is.

Immediately, Yang Yan's figure walked step by step towards the light gate, stepped into it, and then disappeared.

Yang Yan only felt that his body flickered, and the next moment appeared on the edge of another hall, this hall was different from the third and fourth floors, only a dozen zhang square, and there were still reliefs carved on the pillars leading to the dome, but not three, but only one, the leftmost one on the entrance gate of the ancestral land, a middle-aged man dressed in blue, a pair of eyes can pierce people's souls, making people dare not look directly.

What's even more different is that the moment he just stepped on the fifth layer, Yang Yan felt the pressure from his soul, which made his soul sea seem to be shaken, and it was very uncomfortable.

At this moment, in the void in front of him, a jade slip was quietly suspended there, two inches square, and a sword intent rushed to his face, as if the jade slip itself was a sharp sword.

"The reward of the fourth layer, the Sky Sword Formation. The voice was very flat and the introduction was gone.

Yang Yan was staring at each other, the Yunxiao Sword Array was named "Yunxiao", I am afraid it is an important inheritance of the Yunxiao Divine Sect, otherwise it would be too unreasonable for the peripheral inheritance to be named "Yunxiao".

And the sword array, Yang Yan was still trying to get a sword array before, but now he got it, it can be said that his wish has come true, but he doesn't know what kind of sword array it is, after all, there are many types of sword arrays, just like the real sword sword array just now is the one that Yang Yan has never heard of before.

Of course, since the sword array of the fourth layer is a real sword sword array, and the "Cloud Sword Array" in this jade slip is the reward of the fourth layer, then, it is very likely to be a real sword sword array, and even the sword formation of the fourth layer is a cloud sword array.

Yang Yan stretched out his hand to grab the jade slip in the void, and there were wisps of sword qi cutting through his hand, drawing sword marks one after another, which was really like a sword.

Ignoring the sword marks on his hand, such a wound was insignificant compared to his current strong body, on the contrary, he was looking forward to Yu Jian even more, you must know that this jade slip was a reward for him, and it stands to reason that it would not cause him harm, but now just a few wisps of sword qi overflowed hurt his body comparable to a half-treasure weapon, and the preciousness of Yu Jian can be imagined.

At this time, Yang Yan had already infiltrated his mind into the jade slip......

ps: Thank you for the subscription support of Mengbing and the life of waste, and the Jockey Club will continue to work hard, but recently the school affairs have been busy, and various exams have come, plus I am even more powerless, and I ask for your understanding, thank you!