Yan Zhe exchanged for four magic weapons: the low-grade magic weapon Demon Refining Bottle, the medium-grade magic weapon Fire Essence Sword, the Ten Thousand Wood Tripod and the Flowing Cloud Boots.

The Liuyun Boots were the fourth magical weapon that he asked Wang Duan to add.

These boots come with multiple formations, forming a magic combination. Just by infusing a certain amount of spiritual power, the speed of movement and movement can be greatly improved.

Judging from the effect alone, an ordinary person with the blessing can easily jump onto the roof of a five-meter-high building.

Yan Zhe recognized two of the spells, one was the Light Body Spell, and the other was the 'Cloud Soaring Spell' which could only be used by cultivators in the late stage of Qi Refining.

This thing, when worn on the feet, consumes a lot of energy after being activated. If you are in the Nanli Immortal Cultivation World, if you cannot eliminate the opponent or escape from danger before your spiritual power is greatly consumed, it is equivalent to giving up your martial arts and surrendering.

Yan Zhe has Qi-nourishing Pills, so he is not afraid of consumption.

Therefore, this magic weapon is a very good life-saving item for him.

When he wore it normally, even without activating it, the 'Light Body Technique' that the magic weapon could operate on its own would have a better effect than the one he could release himself.

Needless to say, the Fire Spirit Sword, the flying sword in his hand is only a low-grade magic weapon. Although it is just right to use now, as his cultivation level increases rapidly, he will need a better flying sword sooner or later. This Fire Spirit Sword will be bought and nurtured first, and can be directly replaced when his cultivation level reaches a certain level, and his combat power will be greatly improved.

He planned to give his inferior magic medicine cauldron to Tang Guoer, and then use the better Wanmu Ding himself.

Finally, there is the demon refining bottle.

Wang Duan himself doesn’t know what this thing is used for.

It is not easy to refine a magic weapon.

A cultivator needs to completely imprint his spiritual consciousness on the key nodes to master a magical weapon.

The number of key nodes is directly related to the formations used in refining magical instruments. The higher the grade of the magical instrument, the more advanced the formations used in the refining process and the greater the number of them. For magical instruments of the same grade, the more complex the functions, the more formations there are and the more key nodes there are.

A low-grade magic weapon has no less than one hundred and eight restrictions. This demon-refining bottle is a special type of magic weapon, so it should have even more restrictions.

Yan Zhe used his spiritual sense to check and found that there were indeed 184 restrictions.

OK! Let's start refining. It probably won't be finished in ten days. It took nearly two nights to refine the Soul Ring, a top-grade magical instrument.

However, there is no need to refine all of it. If you master a part of it, you will understand the function of this treasure.

After learning about the function of this treasure, Yan Zhe showed a surprised expression.

Two effects.

First, after being injected with spiritual power, this treasure can suck the target monster into the bottle and then refine it into a monster pill!

Yes, refining an entire monster alive into a "demon pill" is extremely cruel and overbearing.

This demon pill is a good thing. When taken by human cultivators, it can strengthen their physique and gain the ability to transform into a demon. The direction of the demonization is related to the demon beast used to refine the demon pill.

Secondly, putting the monster under your control into it can refine the impurities in its body and purify its blood.

Of course, this effect is limited. It is impossible to turn a lobster into a real dragon. After all, this is just a low-grade magic weapon.

However, it will definitely be effective against low-level creatures like the Fire Scale Crow.

You can’t try it now, but you must try it after the refining is completed.

On the fifth day of school, Yan Zhe did not continue to participate in the competition.

He grabbed a question-and-answer session this morning. There were indeed some things he didn't understand when he was reading the book, so he wanted to seize the opportunity to ask questions.

The name of the course is "Preparation of Evolutionary Medicines".

Different spirit beasts need to use different drugs to assist in the advancement of their bloodlines, but the typical drug configuration methods are roughly the same. This course explains this part. The lecturer is named "Ruan Song", a full professor at the Research Institute of Aoki University and an academician of the Academy of Beast Taming Sciences.

It is very difficult to get a spot in this big guy's Q&A session. That is, when freshmen are trying to grab the course, the school system has some preferential treatment. Otherwise, if you grab the course on the first try, you will use up your luck, which is something you can't get even if you bet your brother lives alone for ten years.

Yan Zhe came to the classroom and the screen began to announce the names of students who had won the opportunity to answer questions one by one.

Whoever's turn it is, ask the question and the professor will explain it directly so that everyone in the classroom can hear it.

There were five people in front of Yan Zhe, and the questions they raised had taught him something. When it was Yan Zhe's turn, he stood up and said, "Hello, Professor. My question is, for cultivating spirit beasts gifted with the element of fire, can the fire spirit essence used in training be further purified and concentrated to achieve a stronger effect, such as directly helping low-level spirit pets complete a leap in bloodline rank?"

Yan Zhe felt that the Fire Spirit Essence was very close to the principle of elixir. In the classics of "Dan Ding Sect", there was a "Shui Yuan Dan" which used a similar ratio of medicinal materials to the "Fire Spirit Essence". According to Yan Zhe's speculation, there might be another "Fire Yuan Dan" which was made with the same materials as the Fire Spirit Essence.

Ruan Song smiled when he heard this. This question was not within the scope of the exam. It was very likely that the student was asking this question on behalf of someone outside.

He didn't refuse to answer, saying, "The Fire Spirit Essence can no longer be concentrated. The repulsive force between the molecules has reached a threshold. It can no longer be purified or compressed, otherwise it might cause a molecular riot, that is, an explosion. As for helping low-level spirit pets advance, it is even more impossible. Its function is only to provide abundant fire energy to meet the needs of evolution, and it cannot play a major role."

Yan Zhe seemed to be thinking about something, thanked him and sat down.

The "intermolecular repulsion" also exists in the process of alchemy. After the elixir is formed, it is the final resistance when the elixir is finally made.

Mental strength can offset this resistance.

Use spiritual power to compress the elixir, and use mental power to offset the repulsive force.

If the mental strength is insufficient but the spiritual pressure is too great, it will cause what Ruan Song called an explosion, which is the explosion of the furnace during the alchemy process.

Most of the reasons for the failure of alchemy are concentrated in this final stage.

Using mental power to offset repulsive force is a very delicate operation. The greater the pressure, the greater the repulsive force to be offset; if the pressure is too small, the medicinal properties will be lost, and if the pressure is too large, it will explode.

The increase or decrease of pressure and mental strength cannot change suddenly. Once a sudden change occurs, it will cause an imbalance of forces, which will also cause spiritual power to riot and lead to failure.

The amount of this repulsive force is related to the spiritual energy content of the material.

During the alchemy process, the spiritual energy in the materials will be gradually reduced. It cannot be completely lost, but it is kept at a low level. This spiritual energy will be retained in the alchemy furnace, on the one hand to regulate the spiritual pressure, and on the other hand, after the pill is formed, it can be injected with spiritual energy to avoid waste.

This subject is really profound. Alchemy has been studied for such a long time in the world of immortal cultivation. Every recipe actually takes all aspects into consideration.

The wisdom of the ancients is amazing!