In the most famous place in the entire Sand City, the earth fire room suitable for low-level cultivators to use as alchemists, the wind and clouds were agitated, and the aura of heaven and earth was pulled by a strange force, turning and collapsing clockwise along a whirlpool.

The huge tide of spiritual power was enough for the foundation building period monks to bear it, but at this time, it was applied to Li Yunlong's body, but he didn't even lift the corners of his clothes.

The abnormal changes in the aura of the land around the Earth Fire Room for dozens of miles have attracted the attention of countless monks, and if such an abnormal situation happened elsewhere, some people might think that it was the birth of a heavenly treasure or a trace of the ruins of a cave.

But this is in the Earth Fire Cave that specializes in refining pills!

The best elixir has appeared in the cultivation world again?

Which Dan Dao Grand Master is this coming to Shacheng?

You won't go to the weak fire area that can only be used by low-level alchemists!

Perhaps only this kind of flame is the most suitable pill for the Dan Dao Grand Master to refine.

Amid the speculation of countless people, many of the big forces in Sand City sent out their men to wait outside the Earth Fire Cave.

There were some monks who were originally refining pills in the various layers of the Earth Fire Cave because the spiritual energy between heaven and earth was seized this time, which led to the failure of alchemy.

Their original indignant mood was also eased by the changes between the surrounding heaven and earth and the arrival of representatives of many forces.

Li Yunlong encountered some problems when refining the pill, and the establishment of each pill was the result of the painstaking efforts of countless former sages in the cultivation realm.

There are strict regulations on the amount, year and medicinal properties of each main drug and each auxiliary drug.

Even the slightest hint of it will make the most important step in refining the pill, the fusion of medicinal properties and condensation into the pill, fail.

Li Yunlong's change in the formula of Tsukidan is more than the slightest bit.

He directly extracted the most needed part of the main medicinal materials, which added infinite variables to the subsequent addition of auxiliary medicinal materials.

In addition to the main materials of the three flavors, there are more than 100 kinds of auxiliary medicinal materials, some of which are very small and indispensable.

Is it really necessary to add so many auxiliary medicinal materials to refine the same Tsukidan?

The answer is yes!

At least when other alchemists are refining step by step, they will use one or several auxiliary medicines to promote the fusion of the medicinal properties of the three main medicinal materials, but things can't be too simple.

The newly added auxiliary herbs that are most suitable for the fusion of the medicinal properties of the main herb will have impurities remaining, which will affect the final stage of Chengdan.

What to do?

Continue to add auxiliary herbs to resolve the residual uselessness, and then repeat the cycle and finally find a stable Dan prescription.

Among them, there are too many auxiliary herbs that cancel each other out and do useless work.

Li Yunlong's side extracted the most needed part of the main medicinal materials at the beginning, and without the impurities in the main medicinal materials, there would be much less need to add auxiliary medicinal materials in the future, which directly made the entire Danfang ratio collapse.

However, this is not difficult for Li Yunlong, because of his grasp of the medicinal properties of the herbs and trees...... Who else in the world can compare to the grass and wood spirits?

A small ball of medicinal qi tumbling between his hands was deducted, and with the help of the power of the formation, it was sent into the Cave Heaven Small Realm.

Let the idle and bored large pile of grass and wood spirits find a way to stabilize the three main medicinal materials of Zhuji Dan and the twelve most important auxiliary medicinal materials medicinal qi, Li Yunlong waited patiently.

The purple gold dragon ginseng is the only grass and tree spirit demon with experience, and it is the only one who knows what the medicinal qi of this picture is used for, and can understand the thoughts of the master.

Under his auspices, a variety of medicinal qi stabilized the suppressed medicinal qi from the spiritual elixir all over the Wood Spirit Space and added it.

But the results don't seem to be good.

The Grass and Wood Spirits lack the creativity of a human monk, and they are simply piled up, without the ability to turn decay into magic in a flash of inspiration and blessing to the soul.

This may be the way of heaven!

However, they are indeed the best assistants, and they can verify too many combination options under Li Yunlong's orders.

At the critical moment, the refining tank was reliable, and the purest medicinal qi extracted from the main medicinal materials and the most important auxiliary medicinal materials was inhaled by it.

Then he absorbed the medicinal qi of other auxiliary medicinal materials, and Li Yunlong was most concerned about this.

I saw it from the Wood Spirit Space...... Hundreds of elixirs of various grades were extracted from the top of the medicinal qi and entered the tank!

Hundreds?

It's no different from the original!

Before Li Yunlong could finish sighing in his heart, one breath after another of blood was sucked away.

It took a row to extract the essence blood of the eighteen teapots of the body.

It's a loss!

A drop of essence blood in the body is enough for a peak Qi refining stage cultivator to use as a Zhuji Dan, and the effect is much better.

did not sigh after a memory flowed into Li Yunlong's knowledge.

Tsukidan's new formula...... Eighteen!

"It turns out that it can be like this!" Li Yunlong didn't go to see Tsukidan's new recipe for the first time, but hugged the refining jar.

This is an absolutely sharp aid, the love of the alchemist!

According to the idea of finding another elixir formula to try how far the refining jar can go, Li Yunlong paid attention to the new formula of Zhuji Dan.

It is said that there are eighteen kinds, but in fact, nine of them are still the original three main medicinal materials, and the twelve most important auxiliary medicinal materials, and the changes are only the auxiliary medicinal materials added later.

The other nine are based on the characteristics of the elixir formula after the final pill, and the refining jar is simulated from the wood spirit space to find a suitable elixir.

What Li Yunlong got was not only a memory, but also the eighteen specimens of the Experimental Refining Jar, which intuitively showed the quality of each refining method, and finally Cheng Dan.

Eighteen pieces of the best Zhuji Dan with Dan patterns and Dan Qi covering!

The vision of the birth of the best elixir only appeared in the wood spirit space, which minus too much trouble.

And then it gets simpler.

Li Yunlong's clone sat cross-legged next to the fire eye in an earth fire room in the earth fire cave, opened his eyes, and his hands were no longer suppressing the medicinal qi that was constantly absorbing the aura of heaven and earth and becoming gradually irritable.

Another stream of selected auxiliary medicinal herbs was pumped out by him and injected into the irritable air mass.

The addition of only nine auxiliary materials made the irascible medicinal qi warm and stable, and seven of the nine auxiliary materials were not found in the old version of the Tsukidan formula.

"Open!" As Li Yunlong's clone's Ladan Mudra Technique was unleashed, the earth fire suddenly retracted, and then rotated at high speed around the stable, condensed, and collapsed medicinal qi mass.

"Click"

"Click"

The sound was endless, like the glass shattering, and the whole ball of medicinal qi collapsed.

Each small piece gathers its own medicinal properties in the process of flying, and finally becomes a round transparent bead!

The aura riot in the outside world gradually subsided, and Li Yunlong didn't know whether this alchemy was a success or a failure.

The eighteen Tsukidan made of the refining jar are of the best quality, and it is easy to say that there is a vision.

But the handful of pills he was holding in his hand now......