Dayan Dan, a magical elixir made from medicinal materials such as Tianjiang that enhance cultivation talent, supplemented by several other precious medicinal materials, its only function is to improve the level of cultivation talent.

According to the records on the Nadan formula, 2,000 copies of Tian Jiang are the main medicine, supplemented by several other precious medicinal materials, and the Da Yan Dan refined can have the effect of 3,000 parts of Tian Jiang.

In other words, if this piece of Heavenly Ginger in his hand is cultivated into a Dayan Pill, under Chu Duan's consumption, his cultivation talent will be able to be directly improved from the current fifth-grade low-level to the fourth-grade low-level.

"If that's the case, I can save the time I have now cultivating the Heaven Conquering Dafa......

"It's just that in order to refine the Great Yan Dan, you need to have the attainments of the Great Grandmaster of the Dan Dao, and I have only reached the Grandmaster, not yet the Great Grandmaster......"

"Moreover, several medicinal materials that are combined with Tianjiang are also very precious, and there are none in my collection. ”

After thinking about it, Chu Duan planned to look in the Flying Heaven Pavilion to see if he could get those few medicinal materials, and at the same time find some time to improve his alchemy.

Fortunately, the inheritance is the Dan Dao Grand Master, and it is the peak Dan Dao Grand Master, as long as you give yourself some time and enough medicinal materials, you can improve it, as for reaching the limit of the inheritance, the higher level of alchemy, I will talk about it later.

Chu Duan found that he seemed to have nothing to do, and in his future cultivation, there was another alchemy, and he wished that he had the technique of clone, or he could use one day as ten days.

"Luckily, I still have four intermediate grains of time sand. Chu Duan said secretly.

Originally, most of the intermediate sand of time was used on the compass of time, and there were only eight grains left, which could not be applied to the compass of time, Chu Duan had kept it, and four grains were used in order to cultivate the Five Elements Sword Technique, the Wind Thunder Sword Technique, and the Cloud Sword Technique.

Four medium-grade sands of time, which can be used for four months, become sixteen months. Greatly extending Chu Duan's cultivation time, he cultivated several swordsmanship to the level of the eighth move, coupled with the usual accumulation and amazing understanding, under the understanding of Xiao Shilu's walking in the realm, he accumulated thick and thin, and created three four-grade sword skills in one fell swoop.

This kind of efficiency is very amazing, but when you combine it with all this, it is also somewhat natural when you think about it.

There are also four intermediate grains of sand of time. Chu Duan could use four months as sixteen months, and he had to plan his plan well, how to use this time to achieve greater cultivation efficiency.

As for the high-grade sand of time, there are thirteen grains in total, and until now, they have not been used because they don't dare.

The high-grade sand of time is suitable for king-level powerhouses. A grain of high-grade sand of time can turn a month into eight months, and the effect is excellent, and Chu Duan is very greedy. It's just that he didn't dare to use it.

King-level powerhouses comprehend the power of the rules, and their bodies are many times stronger than those of the Divine Condensation Realm, and all kinds of things can withstand the load brought by the sand power of time.

Although Chu Duan was in the Divine Condensation Realm. It is very strong, but it can't resist the erosion of the sand force of the advanced time, once used. It will definitely cause great damage to the foundation of life, which is very unfavorable.

The thirteen high-grade sands of time can only be kept, waiting for a suitable opportunity to use them after becoming a sword king in the future.

Putting away Tianjiang, Chu Duan unfolded his body, and Feihong Illusion Aerial Step was cast, like Feihong sweeping the sky, like a wisp of light smoke, and left quickly, and on the boulder, his figure remained, and after dozens of breaths, it slowly dissipated.

......

"Senior Brother Chu, long time no see. ”

"Senior Brother Chu, your spirit is very good, it seems that there is a happy event. ”

Returning to Cupino-in, I met some disciples of Cupola-in on the way and greeted them one after another.

Although Chu Duan spent most of his time cultivating after becoming a disciple of the Cupola Academy, he rarely showed up, but at the beginning, he defeated several old disciples in a row, and even Nie Xingkong, who ranked third, was defeated by his sword, although he was finally defeated by Zhong Muchen, it also made Chu Duan's reputation even louder in the Cupola Academy.

Because of the relationship that was always suppressed by the Flying Heaven Academy of the Pingtian Academy, the disciples of the Cupola Academy were more united and cohesive, and the relationship between them was relatively friendly.

"A few senior brothers, do you know where the chief senior brother is now?" Chu Duan stopped and asked.

"The Chief Senior Brother should be meditating in his Sword Tower. One of them replied.

"Senior Brother Chu, what is the important thing you are looking for Senior Brother?" the other asked curiously.

"It's not a big deal, it's just that I've gained a lot in cultivation recently, and I want to prove it with the chief senior brother. Chu Duan said.

The reason why he said this is because of his considerations.

Zhong Muchen's strength is very strong, he has a four-grade sword technique, and now, Chu Duan also has a four-grade sword skill, and after creating it, it has been perfected little by little.

The battle between the two is sure to be exciting.

Chu Duan had already felt the unity of the disciples of the Cupola Academy, and their friendliness and concern were also felt, and gradually, he had a sense of belonging to the Cupola Academy.

There is only a trace of belonging, but it does not prevent Chu Duan from sending an opportunity to the senior brothers of the Cupola Academy.

Suddenly, when those disciples heard this, they were stunned at first, and then became excited, and immediately retired to Chu Duan, and immediately dispersed to inform others.

Chu Duan smiled and walked towards Zhong Muchen's sword tower.

Zhong Muchen's sword tower was built in the middle of a lake, a building in the middle of the lake.

The water of the lake is sparkling, and there are fish swimming in the water.

"Senior Brother Zhong. Standing by the lake, Chu Duan shouted, and his voice condensed into a line, through the heavy air, falling on the ban, causing the ban to fluctuate.

After a while, a figure appeared, broke out of the ban, and tread water.

"Senior Brother Chu. Zhong Muchen nodded and smiled.

"Senior Brother Zhong, I have created a four-grade sword technique. Chu Duan said.

"Let's go. Zhong Muchen's eyes lit up, his speed increased, and he walked in the direction of the Hundred Battles Tower.

In the Cupola Courtyard, the person who comprehended the four-grade sword skills was the only one Zhong Muchen, he was the chief senior brother in the Cupola Courtyard, there was no opponent, and in the Cupola Courtyard, there was a feeling of being overwhelmed by the cold.

Now, in addition to him, there is a second person who has comprehended the four-grade sword technique, and he already has enough strength to fight him.

The speed of the two of them was very fast, and they soon came to the Hundred Battle Tower, and they were startled as soon as they entered, because there were hundreds of gazes that fell on the faces of the two of them.

I didn't expect there to be so many people.

"Chief Senior Brother. Hundreds of people shouted in unison.

"Senior Brother Chu. After calling out the chief senior brother, some people also greeted Chu Duan.

The crowd automatically separated, allowing Chu Duan and Zhong Muchen to walk to the Hundred Battle Platform.

"Senior Brother Chu, please. Zhong Muchen said, slowly pulling out the sword.

"Senior Brother Zhong, please. Chu Duan also drew his sword.

The eyes of the two met one by one, and they did not directly perform the four-grade sword skills, but performed footwork, approached each other in the blink of an eye, and fought with swordsmanship.

In the last battle, Zhong Muchen used a four-grade sword technique to defeat Chu Duan, and the two have not fought since then.

Chu Duan's swordsmanship is undoubted, and Zhong Muchen's swordsmanship is not bad, half-step.

In order to make the disciples of the Heavenly Courtyard watch better, Chu Duan limited his swordsmanship level to a level similar to Zhong Muchen's, the sword light flickered, and the sword shadow was surrounded, which was very exciting.

One move, one style, one sword, very dangerous, and very mysterious, like an antelope hanging horns, imaginative, no trace, see the disciples of the Heavenly Academy, as if intoxicated, eyes without blinking.

Chu Duan and Zhong Muchen both intended to stage a teaching battle for the disciples of the Cupola Academy, so their sword speed did not reach the extreme, but it was fast enough for everyone to capture.

Although the speed of the sword is not fast enough, in terms of skill, it is very profound.

Zhong Muchen learned from the swordsmanship mural that the swordsmanship of light, the swordsmanship of wind, the swordsmanship of thunder, and the swordsmanship of fire are four swordsmanship, which are used alternately, which are very exquisite, these four swordsmanship, after years of cultivation, have all been cultivated to the level of the ninth move, and they have mastered it deeply and are very proficient.

And Chu Duan comprehended the Five Elements Swordsmanship, the Wind and Thunder Swordsmanship, and the Cloud Swordsmanship, but his battle with Zhong Muchen only used the Five Elements Swordsmanship.

"I see, swordsmanship can still be used like this. Some of the disciples nodded unconsciously, revealing a look of sudden realization.

"I see. ”

This battle between swordsmanship lasted for half an hour, and everyone was fascinated.

Immediately, the two separated, each retreated, opened a certain distance, and nodded.

The atmosphere suddenly became tense, and the disciples of the Heavenly Academy were in high spirits, their eyes widened, and they felt that the most wonderful moment was coming.

A clash of sword skills.

Chief Senior Brother Zhong Muchen has a four-grade sword technique, so how can Chu Duan fight against him?

Could it be that Chu Duan also comprehended the four-grade sword technique?

Thinking of this, the disciples were not only surprised, but also even more excited.

"Fourth-grade sword skills, I only have one move, called Light Vortex Lei Yanbo, and my junior brother has already experienced it. Zhong Muchen said: "Because there is only one move, so I have worked this move." ”

"Thundercloud Storm, this four-rank sword technique, I just created it not long ago. Chu Duan said: "Please advise Senior Brother." ”

"Senior Brother Chu has really created a four-grade sword technique. ”

"Great, Senior Brother Chu's sword intent and mysteries have been tempered to the limit of the eighth turn, and his fourth-grade sword skills must be very powerful. ”

"I don't know how powerful Senior Brother Chu will be with the four-grade sword skills of Lu Dao. ”

Nie Xingkong and Li Qiyan also showed expectant looks, faintly excited.

"Okay, I'll just come and see Senior Brother Chu's new sword technique, Thundercloud Storm. Zhong Muchen's tone was also faintly excited.

Chu Duan nodded slightly, did not speak again, but was gathering momentum.

The power of the four-grade sword technique is very strong, more than ten times stronger than the three-grade sword skill, naturally, the consumption of the four-grade sword skill is also many times more than the consumption of the three-grade sword skill, and furthermore, the accumulation time of the four-grade sword skill is also longer than that of the three-grade sword skill.

Enough time to accumulate momentum can truly unleash the power of the four-rank sword technique.

Chu Duan is accumulating momentum, Zhong Muchen is also accumulating potential, the momentum of the two of them makes the surrounding air gradually become depressed, and the pressure in the air is gradually increasing, faintly, there is a feeling that the mountain rain is coming, which makes everyone breathless...... (To be continued......)