Originally, the air sword was intangible and qualitative, and although it had an indestructible sharpness, it could not be seen at all, and could only be sensed.

However, the condensation degree of true qi has increased several times, and the strength of the mind has also increased significantly, and after borrowing more heaven and earth spiritual qi, the qi sword has almost condensed into substance, and it can already be seen with the naked eye.

Although it lost the concealed effect of the air sword, its power increased more than tenfold.

Moreover, when they are paired with the masters, even if they can't see it, they can clearly sense the existence of the qi sword, so it doesn't matter if they can't see it or not.

Naturally, the increase in power is more important than concealment.

Lu Dongbin saw Luo Changfeng's fingertips spitting out the qi sword, stroked his beard and praised: "Okay, good, you really didn't disappoint the teacher, since you have comprehended the method of condensing the qi sword, you can get twice the result with half the effort if you cultivate forever." ”

After listening to Lu Dongbin's words, Luo Changfeng realized that the move of inexhaustibility is not so simple, and the condensation of the qi sword is only the most basic condition.

The disappointment in his heart was swept away, and Luo Changfeng looked at Lu Dongbin with burning eyes.

I saw Lu Dongbin pinching the sword fingers in his hand, standing on his chest, and the Taoist robe on his body was windless.

At this moment, Lu Dongbin's quiet and peaceful meaning disappeared without a trace, and an aura that made Luo Changfeng's heart palpitate condensed behind him.

Luo Changfeng felt that the aura of heaven and earth was frantically surging towards Lu Dongbin, merging with the pale golden true yuan that came out of his body.

I didn't see how he acted, but a pale golden sword about four feet long, three fingers wide, and a shimmering glow appeared behind him out of thin air, half of the sword was higher than the top of his head.

"Huh"

The next moment, the qi sword scattered left and right, like a peacock opening the screen, two on each side, a total of five qi swords floating behind him in a fan shape.

Originally, with Lu Dongbin's cultivation, this move could be accomplished, but in order to let Luo Changfeng feel the specific process of its formation, Lu Dongbin deliberately slowed down.

Luo Changfeng finally understood the inexhaustible essence of this move, and the most important thing is that it can exist in isolation from the body, without using the body as a carrier.

"Go. ”

After the five qi swords were formed, Lu Dongbin's sword pointed at a big tree ten zhang away, and the first one on the left suddenly crossed his shoulder, turned into a streamer, and flew towards the big tree.

Lu Dongbin swung his sword finger horizontally, and the qi sword cut through the trunk of the big tree without any hindrance, and then he swung his sword finger continuously, and the other four qi swords behind him also flew out in turn, each attacking a different target.

And the air sword that has completed the attack action will fly back behind Lu Dongbin on its own.

As he waved his sword fingers again and again, the five qi swords shuttled back and forth in the surroundings, the speed became faster and faster, slowly, the sword body could hardly be seen clearly, only light golden rays could be seen, forming a network of light around it.

Lu Dongbin only cut down a few trees, and those trees that were cut down were quickly stripped of their branches under the shuttle of sword light, and then they were divided into firewood of exactly equal length and size.

Luo Changfeng looked at this scene dumbfounded, this ...... Isn't this the sword fairy's sword-fighting method?

Inexhaustible, it turned out to be a move similar to the sword technique, worthy of being the ceiling-level figure in this world, this has already touched the edge of the super martial arts world!

If you learn this trick well, not to mention the high martial arts world, it will be enough to protect yourself in the super martial arts world.

After chopping a pile of firewood, Lu Dongbin no longer commanded those air swords, and let them return to his back.

After all the five qi swords returned, Lu Dongbin's mind moved, and the five qi swords floated up in the air and began to merge above his head.

In an instant, the five qi swords fused into an atmospheric sword that was seven feet long and one foot wide.

Under the guidance of Lu Dongbin's sword finger, the tip of the atmospheric sword pressed downward, and it flew towards a hill more than twenty zhang away.

The qi sword flickered, leaving a golden trail of light in mid-air, and plunged headlong into the hill.

"Boom"

A violent roar sounded, and the dirt mixed with the snow scattered in all directions, and Luo Changfeng felt that even the ground was shaking.

When everything had calmed down, and when I looked closely, the hill the size of a house had disappeared, not only had it been razed to the ground, but it had also left a deep pit four or five feet in circumference and nearly one foot deep.

"Gollum"

Looking at this terrifying scene, Luo Changfeng swallowed his saliva, and his gaze at Lu Dongbin's back was full of fanaticism.

Where is this still a person? It's a humanoid missile launcher at all!

"Apprentice, do you understand?" Lu Dongbin's kind and slow voice sounded.

Luo Changfeng calmed down and said: "I understand, with the true qi as the base, the power of heaven and earth as the help, the mind as the guide, and the condensation qi as the sword, the enemy will be injured in the air." ”

Lu Dongbin nodded with satisfaction, and said: "Very good, understand the truth, it will be much easier to cultivate again, as a teacher, I will pass on the mantra of the heart to you, you listen well......"

Luo Changfeng listened intently to Lu Dongbin's mantra, not daring to ignore a word.

After a while, he memorized all the mental formulas, and Luo Changfeng began to practice on the spot.

Looking at Luo Changfeng, who was in a state of contemplation, Lu Dongbin stroked his beard and nodded slowly, then walked to the edge of the pool again and sat down cross-legged.

"It starts in the hometown of Shubei Keto, passes between the two eyebrows, and turns right...... The true breath is not interrupted, and it is transported to the summit of Kunlun Peak...... One foot of air, half of it in a day, will be inexhaustible forever......"

The inexhaustible mantra of the mind echoed in his mind, and the true qi operated according to a peculiar practice route, and then penetrated from several strange points on his back.

Because it was the first time to cultivate for eternity, and he was not familiar with the route of practice, Luo Changfeng was very cautious, and he did not rush forward, and time passed imperceptibly.

Luo Changfeng was immersed in cultivation, and he had already forgotten all about the Divine Command Army and the Dense Forest Courtyard.

But it's not that he's irresponsible, but since the master is on Mount Hua, no matter what, he can't escape his grasp.

Since the master was not in a hurry to let him do anything, it proved that the matter was not as urgent as Shangguan Yue and the others imagined, and he naturally studied here with peace of mind.

Luo Changfeng's eyes were closed, he stood motionless, the sky was dark and bright, and he didn't notice it when Lu Dongbin left for a while.

It wasn't until the next day that the sun hung high, and Luo Changfeng finally moved.

Lu Dongbin, who was sitting on the edge of the pool with his eyes closed, suddenly opened his eyes, and a smile of relief appeared on his face.

At this moment, a pale blue halo shone behind Luo Changfeng, this is Luo Changfeng's true qi, Lu Dongbin has already condensed the inner dan, and his true qi has also been transformed into true yuan, so it is pale gold.

As the aura of heaven and earth poured into the true qi behind him, the halo began to shrink, and the color became darker and darker......

Finally, the hazy pale blue halo condensed into a light blue qi sword that was more than three feet long and two fingers wide.

The moment the qi sword condensed, Luo Changfeng suddenly opened his eyes, stretched out his sword finger, and shouted at a tree seven or eight zhang away: "Go." ”

The hilt of the qi sword was warped, and the tip of the sword was facing the tree above Luo Changfeng's head, and in the next second, the qi sword turned into a streamer, instantly piercing through the tree.

Without waiting for the qi sword to fly back, Luo Changfeng's sword fingers swiped, and the qi sword seemed to be held by an invisible hand, shuttling endlessly in mid-air under Luo Changfeng's guidance, and even used a sword move.

Inexhaustible, it is done.

Luo Changfeng's heart was excited, he had practiced, he had finally practiced, although with his skills, he could only condense a qi sword now, but his combat effectiveness had undergone earth-shaking changes.