Not only earth walls and earth thorns, but other skills, mud armor techniques, stone skin techniques..., this made Lu Chen more happy. One is that although his strength has improved, his previous skills have not been learned in vain. The other is that his combination skills can be used as his trump card, which makes him not the countdown among the group of advanced contractors.

Of course, the above skills are all enhanced by the skills, and it is not considered Lu Chen's own skills. Lu Chen just tried it, and the next one is the real self-created skills.

After feeling the state in his body, Lu Chen found that it was not consumed much. Although he released many skills just now, Lu Chen's mental power is much more than before, and he can still withstand it.

The body was intact and Lu Chen had no news. After thinking about it for a while, Lu Chen stretched out his hand and the ground in front of him suddenly vibrated. Then a hole quickly formed on the ground and expanded rapidly. Finally, a crack more than ten meters long and two meters wide appeared in front of Lu Chen.

The depth of the crack is three meters, and it is completely possible to swallow a person. This is also a trap skill, and this skill can also be used as an attack skill.

As Lu Chen's thought moved, the originally separated cracks slowly gathered. If there were humans inside, the aggregated power would be enough to crush the humans inside into pieces.

This skill can be regarded as the Earth Split Technique, but Lu Chen is not very familiar with what he used just now. If he can open his mind and move his mind and move his earth again, his skill will be truly completed.

Lu Chen felt that this skill can be considered a D-level skill, and this is Lu Chen's strong strength that can be called D-level. If he is weaker, this skill will be at most e-level.

In fact, skills are mysterious and mysterious. They are also very ordinary. They use one trick and then master it proficiently. They can be called a skill.

Some people are strong and have their hands turned upside down. Such strong people will also be determined to be very powerful. Some people are weak and just an ordinary person with great strength. The skills of strengthening and strengthening mastered by such people can also be called skills, but such people have relatively weak skills.

Lu Chen used to use earthen walls and earth thorns, and he had some understanding of the release of such skills. In this way, the earthen wall he released was relatively fast, so he could be a skill.

However, the skills created by Lu Chen himself do not have much technical content. They rely more on his talent, so their skill level is relatively low.

The Earth Split Technique was experimented by Lu Chengang. He had never used it before and had no practical effect yet, so it cannot be regarded as a skill. When he is familiar with it, he can be used for combat. His moves can also be called a skill.

Of course, the Earth Schizophrenia that Lu Chen wanted could not be so weak. It is just the first step now. Lu Chen has his own idea, and the Earth Schizophrenia is still incomplete. If his idea is really completed, Lu Chen's Earth Schizophrenia will become an important trump card for him.

It is just the first and most important step. Only after Lu Chen takes the first step, will he make the next plan. First of all, what Lu Chen needs to do is to separate the land as soon as possible, which is the foundation of the Earth Split Technique.

Lu Chen just now relied on his earth-type talent to pull the ground from the middle to both sides. This was the stupidest method, relying entirely on brute force. Lu Chen now wanted to find other ways to separate the ground faster.

The first thing Lu Chen thought of was to use his mental power to soften the hard soil. Needless to say, the hard soil and the soft soil are easy to separate. Although it will take a little time to separate the soil, if you do this, the overall speed of the Earth Strike will be much faster, which means shortening the casting time.

Secondly, the soft soil can make the range of the Earth Schizophrenia larger. Lu Chen tried again. This time, according to his prediction, Lu Chen first consumed his mental power to release the Earth Schizophrenia, and used his soil talent to make them softer. Then, he used the Earth Schizophrenia skill again.

As Lu Chen expected, the ground cracked faster this time, and with the same mental power consumption, the ground cracked thirteen meters this time, about three meters more than just now.

Afterwards, Lu Chen kept doing experiments and practice here to see how to separate the ground faster and the distance between the ground is larger. Lu Chen is still very attentive to this skill, and he has deep expectations for this skill.

In this way, Lu Chen kept training in place for several hours, training ground splitting techniques and other skills. Although Lu Chen also wanted to train, Lu Chen knew that it was not so easy to develop a good skill alone, and Lu Chen would definitely encounter a bottleneck in the future.

When Lu Chen is about to reach a bottleneck, he will train other skills, which will allow Lu Chen to avoid wasting time.

In the following time, Lu Chen started training slowly. On the first day, Lu Chen just thought about how to make the ground break open.

At the beginning, the soft ground did have a great effect, but when Lu Chen increased his mental power to make the ground softer and more ruthless, he discovered a problem. If the softness is too strong, the ground will be like sand, and it is easy to be inseparable.

When such a problem arises, Lu Chen understands that this is too much or too little. After that, he is measuring how softness can quickly separate the ground without sparse soil on the ground. When it is separated, a large amount of soil will invade the cracks.

This kind of question wasted a whole day. He kept measuring the soil, making it softer little by little, and then used the same mental power to separate the soil, and then observed the size of the cracks.

When Lu Chen truly created a skill completely, he realized the difficulty of creating it himself. It is indeed easy to separate it simply, but it is just caused by using brute force. The utilization rate of mental power is extremely low, and a point of mental power may cause half of the effort.

If you find the right method, one point of mental power can achieve ten points of effort, allowing the lowest mental power to achieve the most powerful effect, this is the greatest effect of the skill.

The higher the utilization efficiency, the higher the level of the skill, which is the essence of the skill. Of course, there is also a problem with the highest limit. If a skill can use one point of force to do one hundred work, but can only output one point of mental power at most, such a skill has no effect and the level will not be too high.

Of course, Lu Chen couldn't do that. It would be good if he could give a point of mental power to exert ten points of his strength.

In fact, many skills can achieve such a low utilization rate. Lu Chen's B-level skill can even exceed this utilization rate. This is also the powerful part of B-level skill.

Logically speaking, with such powerful skills, Lu Chen doesn't need to do thankless things like creating skills. He just needs to upgrade his skills honestly. Most contractors are like this.

But others' skills are ultimately owned by others, and others prepare them for those people themselves, and Lu Chen is a little different from those people. Using their skills to fight is flawed. Moreover, those people's skills can only be slightly modified and cannot exert all his advantages. These are some unstable aspects.

Of course, there will be no problem with such things at low level, but when you reach the advanced area, Lu Chen will eventually need his own trump card.

The skill that Lu Chen prepared now was prepared for himself. The skill is still very weak now. It basically has no lethality, but when Lu Chen integrates his dual-type talents into this skill, he probably will become stronger.

Yes, Lu Chen is preparing to combine this skill with his dual-type talents, not only with earth-type talents, but also with magnetic talents.

As for why it is not integrated now, Lu Chen is preparing to explore the potential of this skill with the soil talent first.

Rome was not built in one day, and Lu Chen had a deep plan for this skill. He was not prepared for it in a short while. Lu Chen had already regarded this as his ultimate trump card and would be improved from time to time. This skill will follow him to the peak. This is also his preparations for the advanced zone.

On the first day, Lu Chen solved the problem of softness of the soil and found the most suitable degree, which could separate the Earth Schizophrenia even more.

The next day, Lu Chen began to start from the ground, hoping that when the Earth Split Technique was launched, the depth could be deeper. This is a skill that requires slow experimentation. The creation of each skill requires the unlimited efforts of his predecessors.

Lu Chen was able to create earth walls and earth thorns because he had other skills to guide him. Now, Lu Chen had to grop alone, which was much slower.

In the days that followed, Lu Chen had been testing this skill and trying his best to perfect it. When he was free, Lu Chen was also training other skills. The first ones were training those C-level skills. Lu Chen was preparing to train them to the full level first.

In this way, in the boring training, time slowly passed. In the blink of an eye, half a month passed. After fifteen consecutive days of training, a level C skill had been trained by Lu Chen to level six. At this time, it was very difficult to upgrade again. Upgrading again was a qualitative change. Lu Chen needed to fully understand such skills before he could learn it.

Of course, Lu Chen didn't have that time, so he could only use potential points to forcefully practice this skill.

In the last mission world, Lu Chen extorted a lot of potential points from those contractors. The potential points can break through the limits and can exert the best power of the skill without comprehension. Therefore, it is very precious for contractors and is more precious than basic attribute points.

But because of this, contractors have some potential points in their hands, and they are reluctant to spend them. Like Lu Chen, they usually do not use potential points to practice, and they will only use them when their skills are broken through.

This allows contractors to store potential points after they have the potential points in their hands, and wait until they reach the limit. The more advanced the skills, the higher the upgrade, the more potential points they need. This also allows those contractors to have a lot of storage in their hands, and Lu Chen's gains from opening the Bloody Rubik's Cube.

In the last world, Lu Chen obtained fifty-five potential points, but don’t think that there are many potential points like this. When the skills are upgraded to advanced levels, they also require a lot of potential points.

A skill from level one to level three only needs one potential point to upgrade the skills, while a skill from level four to level six requires six, and a potential point to level seven requires four points. These numbers are also a considerable burden for Lu Chen.

Fortunately, Lu Chen's talented skills can increase skill proficiency, allowing Lu Chen to open the training space for upgrading. Otherwise, if all the potential points are used to improve, a C-level skill requires thirteen potential points, which even Lu Chen can't bear.

However, opening the training space also requires a waste of survival points. Lu Chen’s current approach can be said to use survival points to exchange potential points. Of course, Lu Chen’s efforts are also included.

After upgrading this C-level skill, Lu Chen started other skills training. At the same time, Lu Chen's own skill, Earth-breaking Technique, has also gained. Lu Chen can already make the land soft and the underground become empty while the Earth-breaking Technique is activated. After 15 days of training, the initial movement has become Lu Chen's instinct, making Lu Chen's spell casting speed much faster.

This time, Lu Chen tried to add magnetic abilities to make them merge into one. After thinking for a few days, Lu Chen decided that the first skill to fusion was to induce the mark.

This is something Lu Chen learned from a crystal, and has always been used by Lu Chen as a skill to pull people. It is also very suitable to put it in the Earth Schizophrenia at this time.

The same rune is placed on both sides of the ground cracking technique. As long as Lu Chen uses mental power to stimulate it, the grounds on both sides will be separated at a faster speed. If Lu Chen's different rune marks are placed on both sides, as long as Lu Chen uses mental power, the grounds on both sides can be quickly combined.

With the use of soil talent, Lu Chen's Earth Schizophrenia's cracking and closing speed has been three times faster. This is just the first step of Lu Chen's experiment. In the second step, Lu Chen is trying to add a few more repulsive runes to make the Earth Schizophrenia separate faster.

While studying Earth Schizophrenia, Lu Chen's other skills did not fall. At a speed of one per day, Lu Chen's C-level skills were all upgraded to the maximum level by him. Of course, the maximum level of skills is indispensable for the consumption of potential points, and eight potential points were consumed. In addition, Lu Chen's C-level skills were no longer involved.

Skills are indeed difficult to learn. For example, it will take one month for Lu Chen to have the bonus of soil, plus eight potential points. Other contractors do not have the bonus of Lu Chen's talent, and their upgrade speed is slower.
Chapter completed!