When he fought against Qian Mu before, this black left hand helped him a lot and saved his life. Later, in order to dispel his doubts, he tested that this hand could resist long knives without injury. But now it seems that he still underestimated "Soul Determination", underestimated the left hand, underestimated his father, and underestimated a lot of things.

After all, a left hand that can resist a lower-grade magic weapon is truly amazing.

"It seems that in the future, I will have to cultivate this "Soul Refining Technique" well, as long as my left hand continues to be strengthened, sooner or later, I will even take the magic weapon without injury. It's my own secret art. Zhou Nan thought excitedly.

After thinking for a while, Zhou Nan restrained his thoughts, took off his long coat, and only wore a pair of trousers. Squatting on the ground, he picked up a piece of red flint intently, closed his eyes and channeled for a while, and then threw it into the casting furnace casually.

A quarter of an hour later, seeing that the time for the calcined stone had arrived, he wrapped the flint stone, which had been heated and softened, with his mana, and skillfully placed it on the casting table. Later, he picked up a stone that had been carved into the shape of a hammer.

Next, Zhou Nan just took a deep breath, threw off his powerful arms, and fought hard against the flint, venting his excitement to the fullest. For several years, it has not moved the hammer, and it has not stopped.

The loud sound of thumping continued to echo in the cave, but it was all blocked by the formation and did not spread to the outside.

After tempering, returning to the furnace, tempering, returning to the furnace, and repeating it many times, Zhou Nan stopped.

After checking it and looking at the orange color of the stone, Zhou Nan threw the red flint that had become the size of his thumb to the ground. But then, he took a piece of red flint ore, channeled, returned to the furnace, and tempered.

Step by step, Zhou Nan seriously repeated the same action. It is as if the tired machine is constantly refining the raw ore. Although it was boring to do, he didn't notice it in the slightest.

The refining tools of immortal cultivators all use high-temperature flames to melt the ore, and then use mana and divine thought to manipulate it, and then burn off the impurities in the ore solution. Then, according to a special proportional step, a variety of materials are fused, turned into a liquid, and injected into the corresponding mold for cooling and molding. After carving the formation, such a magic weapon will be refined.

But Zhou Nan started as a blacksmith in the mortal world, although he knew the method of refining the tools of the Dao cultivators, he still liked the pleasure of hammering hard with a casting hammer. Only in this way did he believe that the ore was refined and pure, and the casting of the utensils was excellent. Only in this way will he believe that he will forge something good.

Therefore, Zhou Nan would call himself a caster, not a refiner. Even though he was already an immortal cultivator, he could still cast inferior magic weapons, but he still called himself a foundry. It's a habit and a persistence.

Perhaps only in this way will he feel the joy in casting, and only this most primitive casting method can make it easier for him to find the true meaning of casting. Keep the best memories alive and don't forget them all.

After all, immortal cultivators are also human beings after all, and this primitive and simple casting method is also applicable to them. It's just that for thousands of years, it is no longer used. But it is undeniable that this primitive casting method is still effective.

A month later, in addition to eating casually every few days, Zhou Nan was always doing the thing of refining ore, and the sound of tapping in the cave never stopped. During this period, he was stunned and carefully purified a whole lot of red flint stones with the spirit of iron fighting, and none of them were used to cope with errands.

Looking at the crystal clear, restrained red light, and the small crimson stone that exuded a faint heat in front of him, Zhou Nan exhaled deeply, and felt a burst of satisfaction in his heart. Picking up a handful of purified ore, Zhou Nan opened his eyes, and quickly entered the psychic state with the operation of "Soul Refinement", and checked it carefully.

After a while, he felt that his vision in front of him changed, and he appeared in a fiery world. This world is burning with a raging fire, steaming, only this one color, and nothing else.

Stopping the exercises, Zhou Nan nodded. This "Soul Refinement" may not have a great effect in other aspects, but it has an extraordinary role in checking the material, purity, and opening up the spirituality of the material.

All things have animism, and when he first heard Zhou Hao mention it, Zhou Nan still didn't believe it. But now, through "Soul Determination", I have seen these things with my own eyes, and I have seen that different world. It's never like it was before, just a dim sight. This shocked him at the same time, and at the same time, his cognition of "Soul Determination" went to a higher level.

The world realm of fire in the Xuanflint is the soul of the Xuanhuo.

Through purification, Zhou Nan found that this world has become more refined and pure. Although it is smaller, the energy contained in it is even larger. And in the world realm of fire, if you only use divine thoughts to detect, all you see is a pure stone of fiery red. What you see in "Soul Determination", you can't see it with divine thoughts.

After resting for a few days, Zhou Nan swallowed the remaining three Ming Huang Dan.

Half a month later, by constantly urging the "Soul Determination" Zhou Nan finished refining the medicinal power of Ming Huang Dan. When he was on the sixth layer of Qiling, the Ming Huang Pill, which was very violent to Zhou Nan, came to take it again at this moment, but it seemed very gentle.

The three Ming Huang Dan easily stabilized Zhou Nan's cultivation at the seventh layer.

Moreover, the continuous casting for a month also consolidated Zhou Nan's mana foundation in disguise, and removed the disadvantages caused by swallowing pills for him. Compared to other seventh-layer immortal cultivators, he was not inferior in the slightest.

Even because of the characteristics of "Zhimu Duel", his mana is more refined, and he is more stable than a monk of the same level. In his current state, Zhou Nan was confident that he would fight with the monks of the eighth layer of Qiling and complete a leapfrog challenge.

The challenge of skipping the level depends on many factors such as the cultivation of both sides, the magic weapon rune paper, courage, and battle awareness.

Therefore, it is very difficult to challenge an opponent who is a small level above you. Ordinary people can't do it at all. But in order to accomplish this, it is required that the immortal cultivator himself has something extraordinary. This matter is like letting a child fight an adult, if there is no means to outwit, then there is only one way to lose.

As for those who can challenge two small realms or more than themselves, they are all proud sons of heaven and demons. And the monk who can cross the challenge of the great realm is a genius of the ages. This kind of person is very human, and he is very reasonable.

The level of the realm determines the level of strength. In the face of absolute strength, all conspiracies and calculations are false. And if you want to do this and succeed in leapfrogging the challenge, you have to seek a way out in falsehood, and you can't do it unless you have great perseverance, great wisdom, and great courage.

After venting for a while, Zhou Nan reined in his thoughts and pondered. After a while, he took out all his magic weapons and placed them in front of him. Looking at the dozen or so magic weapons in front of him, he frowned unconsciously. High-grade magic weapons, a silver flying sword, a medium-grade magic weapon, a disc shield, and the rest are ordinary goods.

These low-grade magic weapons, before the fifth or sixth layer of Qiling, were still handy to use. But after reaching the seventh layer of Qiling, if you continue to use it, it won't last long, and it will be damaged. Therefore, if the monks of the seventh layer of Qiling don't have a few medium-grade magic weapons, they will all be a little cheap. If there is a high-grade magic weapon, then it can take advantage of the same realm.

The general market value of low-grade magic weapons is less than 100 spirit stones, medium-grade magic weapons, two or three hundred spirit stones, and high-grade magic weapons, about 1,000 spirit stones. As for the best magic weapons, they are very rare things. It is not uncommon for the market value to even exceed 10,000. The value is much higher than that of ordinary low-grade spiritual weapons, and it is directly catching up with the value of medium-grade spiritual weapons.

At this level of the refiner of the Enlightenment Period, what is refined. Thirty percent are scrapped, fifty percent are low-grade magic weapons, more than one percent are medium-grade magic weapons, and less than one percent is high-grade magic weapons. As for the best magic weapons, in the hands of these refiners, it is basically impossible to appear. Lower-grade and medium-grade instruments can be mass-produced, but the market value is not high.

High-grade magic weapons are very scarce, refining materials are expensive, and the value will soar. As for the best magic weapon, that is a qualitative change, and it is already difficult to estimate the value of the spirit stone. Generally, there is no market for price, and it is impossible to find it.

Among this pile of magic weapons, the most useful one for Zhou Nan was this silver flying sword. This is a wooden attribute flying sword specially prepared by Qian Mu after spending all his worth, which is very consistent with his attributes. The disc magic weapon is a defensive magic weapon, and its value is higher than that of ordinary medium-grade attack magic weapons. But the quality of this magic weapon is average, and Zhou Nan is very dissatisfied.

As for the low-grade magic weapons, except for the cicada wing flying sword that he accidentally refined for the first time, the other magic weapons did not have much value in Zhou Nan's opinion. He really couldn't think of any effect other than selling them for spirit stones.

It's a pity that although the Cicada Wing Flying Sword is good, it has a serious drawback, that is, there is no inscription formation. In this way, the magic weapon is a bare wild horse, which is difficult to control. Even Zhou Nan didn't have the slightest solution.

"It seems that you still need to learn the next formation. Zhou Nan stroked the cicada's winged flying sword and whispered.

Touching and touching, after a while, as if he had thought of something, Zhou Nan's eyes lit up, and he looked at this pile of low-grade magic weapons, and his face was suddenly full of heat. "Perhaps, that's really possible. He said excitedly.

Next, Zhou Nan casually took a lower-grade flying sword in his hand and carefully scanned it with his divine thoughts. I saw that under the shroud of divine thoughts, a special formation quickly appeared on the flying sword. But it's a pity that this formation is uncertain, and I can't figure out the changes in it at all.