At this moment, the incense wafting out of the Dan furnace made the two assessed Venerable Dan Masters look incredulous, this situation has exceeded their cognitive boundaries, at least among the people they know, no one can do such alchemy.

Not only is there no tendency to burst the furnace, but the refined pill is identified from the danxiang, and it seems that the effect is even better.

After the liquid medicine is fused together, it is the process of becoming a pill, and this process also plays a key role in the quality of the pill, because the quality of the pill is related to how long the pill can be stored, especially some unique pills, which may rarely be used in ordinary times, but the role of the critical moment is very important.

Therefore, the higher the quality of the pill, the more favored by the monks, after all, no one wants the pill to be bought back and lose half of its efficacy in less than a few days, then it will be sad.

There are also many doorways in the process of becoming a pill, such as the formation of locking spirits, these formations have various strange functions, such as gathering spirit arrays, or avoiding water arrays, avoiding high temperatures, and so on, here is a great test of the alchemist's formation ability.

However, compared to those Heaven and Earth Great Arrays, the formations that are burned in the pills are all miniature formations, and it will be relatively less difficult to cast, but the corresponding basic principles must still be in place.

Cao Yu's comprehension of the formation is naturally not bad, and the first pill he has refined at the moment is the Yuanyang Dan.

The main effect of this elixir is to give it to those who have been poisoned by cold, or as a cold ward in some polar regions.

The element he needed to consider was that he first had to ensure that the medicinal effect of this pill would not be lost quickly, so he planned to engrave the first layer of the formation into the Spirit Gathering Array, and he had previously used it once when he was in the Great Competition of the Danta in Yunyue City, but he was familiar with it.

It was still one hand that continued to inject true yuan, and the other hand performed the magic decision of arranging the formation, and as the hand shape continued to change, one after another the magic decisions of different colors were beaten into the Dan furnace.

"Gather Spirits!"

After the last magic battle entered, he immediately felt wisps of spiritual energy injected into the periphery of the Dan furnace, and at this moment, the spirit gathering array that Cao Yu carved into it was a little different from the previous one.

Because of the improvement of his formation level, the Spirit Gathering Array that could be arranged was no longer a primary Spirit Gathering Array, but an intermediate Spirit Gathering Array.

Cao Yu's hand once again stunned the two purple-robed alchemists.

Hearing the word spirit gathering, they all roughly guessed in their hearts that the formation that Cao Yu arranged in it was the spirit gathering array, and looking at the speed of the spiritual energy gathering, it was obviously not the lowest level of the spirit gathering array.

didn't bother, they still watched wholeheartedly, they were no longer assessing at the moment, but holding a learning mentality.

The two of them sat in a proper manner like elementary school students in class, otherwise they would have crossed the slightest, and their expressions were extremely serious.

If someone comes to disturb them at this moment, it is estimated that they will be in a hurry with him!

After thinking about it again, Cao Yu injected his own golden true yuan according to the characteristics of Yuanyang Dan, and carefully injected it into that ammunition with soul power.

Airplanes!

With the injection of the golden true yuan, the elixir diffused with an extremely excited fluctuation, which was also mixed with the unique kingly aura of Cao Yu's Supreme Yuan.

Immediately afterwards, Cao Yu was not satisfied, and once again changed the method in his hand, and cast another fire formation, which was engraved into it again soon after.

At this moment, the pill in the Dan Furnace looked golden on the outside, because the Yuanyang Pill itself was yellow, and after adding Cao Yu's Supreme Yuan, it turned golden.

At the same time, there are tiny and imperceptible Mars-like points of light on this golden surface at intervals, which is very beautiful.

At this moment, Cao Yu has integrated everything he can do into this pill, of course, the amount of the final pill depends on the division before the pill, and this will not be according to the technique and level of the individual alchemist.

Ten pieces is perfect!

Eight excellent products!

Six qualified!

In the end, the soul was injected into the pill to divide it into ten pieces, and this pill was not messy, it needed the alchemist to rely on the strength of the medicine to divide it evenly, if the medicine was poor, it was divided into ten, and the waste pill was no different.

Therefore, the initial process of refining and fusing the liquid medicine greatly limited the number of final Cheng Dan.

After roughly estimating the medicinal power, Cao Yu's face was already filled with a smile, he was still very satisfied with the elixir refined this time, and there was still more than enough medicinal power when it was divided into ten pills, as for the final elixir level, he could only fully know it after it came out.

"Hah!

Patting the furnace body, suddenly the lid of the Nadan furnace flew into the air, and ten streamers rushed out!

Suddenly, in the sky above the Frost Falling City, dark clouds were thick, and a heavenly thunderbolt that was as thick as an adult's waist was directly slashed coldly.

"Click!"

That day, the thunder instantly struck a thick metal lightning rod above the Danta branch, and at this moment, it seemed that the lightning rod had cracked directly after being tortured, but no one knew.

After all, this lightning rod was originally designed to be used for some anti-heaven pill barriers, but the strength it can withstand is extremely limited.

Cao Yu, who was inside, only heard a thunderclap, and there was no follow-up to the others, he was quick to take out the porcelain bottle prepared in advance by Yidan Tower, and with a wave of his arm, he put the ten pills into it.

It's a smooth operation!

At this moment, there was silence in the alchemy room, and a trembling voice suddenly came out: "Old Liuzi, what did you hear just now?"

The purple-robed alchemist with a fatter face was touching the alchemist sitting next to him with trembling hands.

The alchemist who was called Lao Liu Zi was still silent in Cao Yu's alchemy against the sky, and he was awakened and jumped up with a bang.

"I'm good. It seems that thunder is heard.,That's.。。 Is that a thunderbolt from the sky?"

After saying this, the two of them looked at Cao Yu at the same time, asking Cao Yu what the situation was, and how could he still assess a thunderbolt.

On the top floor of the Danta branch building, at this moment, an old man with a black face and smoking hair was full of anger.

"Which bastard is this, my saint-grade high-grade elixir!"

In addition to the black on his face, the old man's arms are indeed ruddy and shiny, and he knows at a glance that he is very particular about health.

Just now, he happened to be refining his own saint-level high-grade elixir, and he had just refined a medicinal herb when he was shocked by that heavenly thunder, which caused the refining to fail and blow up the furnace.

"What bastard, is this coming to our Danta to survive!"

It was natural to think that someone had broken through Wuzun and crossed the tribulation near their Dan Tower, after all, if the pill wanted to cause a thunder tribulation, it would have to be an epic-level elixir in the legend, and since he appointed the president of this Frostfall City, no one had been able to refine an epic-level elixir.

The requirements for this quality elixir are extremely strict, and it is possible to achieve it only if it is in perfect condition from the perspective of any link.

He had thought about refining low-grade pills to improve the quality, but it had been fruitless.

There is a very fatal difficulty, that is, the stage of refining medicinal materials, in the textbook process of Danta, it is the refining of plants one by one, and no one has ever refuted it.

Therefore, in the history of the last few hundred years, no one has refined an epic elixir anymore.

Of course, existence is the truth, since there is this statement, then there must be a reason for its existence, and there must have been the appearance of that kind of elixir, and there will be an epic elixir.

"Hey, how good it would be if this thunder is an epic-level pill pill tribulation, I'm willing to be split every day!"

The old man with a swarthy face muttered to himself, but in a blink of an eye, he laughed at himself, isn't this a fool's dream!

I believe that those bigwigs in Zhongzhou, they can't do it! Not to mention his existence as a frontier who has been assigned.

"Come on, go and get out the kid who was robbing around for me quickly, but I can't let him harm my Danta again!"

commanded, and suddenly a voice responded, which was considered to be dealt with.

On Cao Yu's side, the two stunned alchemists were looking at him like peerless treasures.

"I don't know very well, it should be the pill tribulation of this pill!"

Not very sure of the response, the previous time he was doing alchemy in the open air outside, so the thunder tribulation happened in front of everyone's eyes, and he was slapped away by Li Sheng at that time, and he was scared out of his body.

"Can you show me the elixir?"

Old Liu Zi's eyes revealed extreme eagerness, and now they treated Cao Yu as a god.

Whether it is the meticulous preparation from the beginning, or the various mysterious techniques in the alchemy process, plus the thunder tribulation caused by the end, it all indicates that Cao Yu is a master of alchemy.

This kind of existence is even more revered in their hearts than their president, because in the eyes of alchemists, the level of alchemy is a symbol of status, and age is not the key factor.

The so-called master is the teacher, as long as it is an alchemist who is stronger than them, he will become the existence of the guest of honor, and he is also convinced!

"Take it!"

Cao Yu threw it directly without care, as if it was a worthless thing.

But in the eyes of Lao Liuzi, this action was like asking him to die, and he hurriedly encouraged the whole body to be wrapped in Zhenyuan, and only after seeing it firmly caught it did he breathe a sigh of relief, and he didn't forget to glance at Cao Yu, which clearly meant scolding him for being a loser.

The fat Dan master next to him hurriedly came over and said with an expectant face: "Open it up and take a look!

That look, like seeing a peerless treasure, I can't wait to break it open to see what is going on.

"You old fat intestine, why are you in a hurry! Don't touch me, if you shake off your hand, you will pay for it!"

The fat old man who was called the old fat intestine looked embarrassed, but he was not angry, and he opened up some distance with a smile, but his eyes did not leave the porcelain bottle of the pill in Lao Liuzi's hand.

"Okay, okay, don't touch you, open it quickly!"

He was already impatient! This was a matter of their glory, if an alchemist refined an epic elixir under their supervision during the assessment, it would be a terrible thing, although he was already sure in his heart, he still wanted to see the real thing again.

"Boom!"

The crisp sound of the cork being pulled out came out, and suddenly the danxiang ten times richer than just now came out.

"Ahh

Old Liu Zi couldn't help but take a breath of trilling freely.

"I sniff, I sniff!"

The fat intestine is actually called Fei Chang, but because of his body size and the homonym of his name, everyone calls him why.

"Ahh

Fei Chang also sighed after taking a deep breath.

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