Very good, this kind of doppelganger is essentially a puppet, just because Zhang Zhiping's little divine thought gives it a trace of spirituality, so that it can automatically absorb the power of the outside world to maintain its existence for a long time, and completely accept Zhang Zhiping's control, in terms of strength, although it is not as good as the Sun Divine General, but it has also surpassed the ordinary foundation building period monks.

However, it is only a puppet after all, and to expect it to be completely self-sufficient like a monk is a fool's dream, according to Zhang Zhiping's experiment, if he does not give this puppet external support, it will only last for ten days at most before it will automatically dissipate.

And the more you get to the end, the weaker your strength becomes, and it can be said that after three days, the power will fall below the foundation building period, and if you fight, you can only exert one or two powerful attacks at most, and more often you will hurt the enemy with the help of self-explosion, which seems to be no different from ordinary fire crow techniques.

One of the real keys is here. Zhang Zhiping put the pre-compressed hydrogen aura into the core of the fire crow, and the two were immediately perfectly fused together, giving the fire crow a powerful power source.

That's it! The Fire Raven Puppet he created can maintain its existence with the help of the hydrogen aura prepared in advance, even if it fights for a long time, it will not disappear until the core hydrogen aura is consumed, and it will continue to exert its strength close to the Jindan stage!

In this way, if he can continue to create this fire crow puppet, he will soon be able to have a group of Dao soldiers who are all close to the strength of the Jindan stage, and then join forces to set up a large array, I am afraid that even the monks of the Jindan Great Perfection can be beaten to death, and even have the potential to continue to improve.

The prospect is very good, but there are still two problems, one is the supply of hydrogen spiritual energy, and the other is the problem of how much to divide the divine thoughts. And the first problem, which is also another key to this martial arts, is hydrogen aura, which can be made directly with the help of ordinary water, and does not need to consume much mana.

According to his extensive experiments, he took the amount of hydrogen spiritual energy required by a Fire Raven Dao soldier to maintain its full state for a whole day as a unit, which could be enough for it to sustain a full battle for a quarter of an hour, and he mixed the spiritual energy with ordinary water to produce hydrogen spiritual energy, which only needed one cubic meter of water to satisfy, and on this sea, if nothing else, the water was definitely an open supply, enough for him to maintain a Dao soldier.

And the second problem, with his current number of divine thoughts, it is not a problem to divide tens of thousands of fire crows, after all, he doesn't need how high the fire crows are, as long as he has the instinct to draw power, the main battle command problem can be solved by the mud pill god. With the superb control of the Mud Pill God, he can definitely give full play to the strength of a Dao soldier.

It's just that he can't fully put his divine thoughts into the Dao soldiers after all, and maintaining his spiritual existence also requires a certain amount of continuous consumption, so after his experiments, based on the supply capacity and the degree of strength exertion, the proportion of the best Dao soldiers is about three thousand, which is enough for him to fight head-on with the Jindan Great Perfection Monk.

This is the first spell that Zhang Zhiping has developed in ten years, and it can meet his requirements very well in terms of power and potential. However, this is not enough for Zhang Zhiping, after all, the method of Dao soldiers still relies on external forces to a certain extent, and it is difficult for him to achieve the effect of killing with one blow like the water knife technique, so he also needs more powerful and easy-to-control spells.

There are not many theories that can be found that are suitable for Zhang Zhiping's realm, and there are even fewer theories that can become his unique advantages, and Zhang Zhiping has found a theory suitable for himself from these few theories, that is, sound waves, or mechanical wave vibration.

Mechanical waves, to put it simply, are the process of a particle vibrating back and forth in place, and then transmitting this vibration through the medium. This thing is too common, from small to talking, as large as earthquakes, high-tech ultrasonic, infrasound, etc., can be said to be the transmission of mechanical waves, and there are two key points, one is the vibration source, the other is the medium, both determine the power and transmission of mechanical waves.

Regardless of the medium, it can be said that the greater the vibration emitted by the vibration source, the greater the final destructive force. At the beginning, when Zhang Zhiping studied this theory, he didn't know how powerful the vibration source he could create, and he didn't know whether its power was suitable, so he simply chose a desert island dozens of miles in the middle of the sea, and then poured all his strength into vibrating in the center as much as possible.

Zhang Zhiping still clearly remembers the original effect, without any warning, a violent earthquake suddenly occurred on the island, the ground shook, the mountain collapsed and the ground cracked, and the earth-shattering sound roared in the air.

Moreover, the vibration was still transmitted in all directions, and finally set off a tsunami on the sea that spread for hundreds of miles, which attracted the attention of the monk of Lingyuan Island, and made him leave there in a hurry.

At that time, Zhang Zhiping was amazed at the power of that man-made natural disaster, at that time, he deeply felt his own power, compared with the mortals in his previous life, he can now turn into a moving natural disaster, with a wave of his hand, the sky and the earth will collapse, and the earth will break the earth, and if he is careful, I am afraid that he alone can destroy most of the civilization in his previous life.

This power is definitely enough! Zhang Zhiping immediately affirmed the power of the vibration source he had created, such a powerful force suddenly burst out, even a Jindan Great Perfection cultivator would not want to be safe and sound, but now there was a problem, that is, how to apply these powers to the immortal cultivators.

Earthquakes, tsunamis and other natural disasters seem to be monstrous and powerful, but it is difficult to pose any threat to immortal cultivators, with the agility of immortal cultivators, it is not too easy to avoid them;

And similar spells are actually not lacking in the world of cultivating immortals, such as the method of shaking mountains and shaking mountains, the technique of waves and the like, they all use such principles, after all, immortal cultivators are not stupid, and they also understand most of the common principles, but they just change the word.

However, Zhang Zhiping chose this theory for a reason. Immortal cultivators' use of vibration is mostly limited to this, even if there are some occasional sound skills and the like, it is difficult to gather the power of vibration, not that they are unwilling to do so, but they do not have external plug-ins such as the Five Visceral Gods and Mud Pill Gods, and it is difficult to take these theories to the extreme. Anything, it can be said that as long as it is played to the extreme, it will inevitably have great power.

So how to gather the power of Zhenyuan? After a lot of thinking, Zhang Zhiping put the method on the medium.

Mechanical waves cannot propagate in a vacuum, must rely on the medium, and different media, for the conduction ability of mechanical waves is also different, will cause a large amount of loss to vibration in the transmission process, the speed is also inconsistent, in this way, it has caused great difficulties to control the transmission of vibration.

Therefore, Zhang Zhiping's idea is to make a medium specially used to conduct the power of vibration. This was not without precedent, and Zhang Zhiping immediately thought of a very common spell, the technique of transmitting sound for thousands of miles.