Time passed slowly with Lu Chen's hard training. Lu Chen, who was focusing on training, finally upgraded the giant dog summoning, stone skin technique, and summoning the earth beast to level 4 a month later. This cost him three potential points. After reaching the level 4, Lu Chen no longer trains B-level skills to summon the earth beast. It also faces the same trouble as the earth element. If it is improved, Lu Chen will not be able to control it.

At the same time, Lu Chen trained the dungeon technique and the giant dog summoning according to the predetermined goal, and wanted to upgrade the two of them to the full level before the remaining time ended.

Twenty days passed by again. Lu Chen was only a few minutes away from going out. He looked at the summoning of the Giant Dog at Level 5 in his skill bar and the dungeon technique of level 6. Even though he tried his best to train, the proficiency required for the skills from level 4 to level 6 was too high. Even with the help of his talent bonus, the summoning of the Giant Dog at Level 1 when he came in was not improved to level 6.

However, Lu Chen has been training the level 4 dungeon technique for the past fifty days and has upgraded it to level 6.

After thinking about it, Lu Chen still used his potential points to improve his two skills. When he came to the space last time, Lu Chen had two potential points that were not used. Adding to the eleven potential points obtained in the Legend of the Night, Lu Chen now has thirteen potential points in his hand. The potential points can be removed and accumulated to directly improve the skill level, but the higher the level, the more potential points it needs to be consumed.

It takes a little to upgrade to level 3 and level 4. Each level 4-level upgrade requires two points, and level 6-level upgrade to level 7 requires four points. After thinking about it, Lu Chen spent two potential points to upgrade the giant dog summoning to level 6. Then he used eight potential points to upgrade the giant dog summoning and dungeon technique to level 7, which is also the top level of these two C-level skills.

When they added the eight potential points and upgraded to the top level, two pictures suddenly rose in Lu Chen's mind. One was a soil prison on the earth and stood unbreakable on the earth.

The other is under the ground, endless resentment rose, and it was combined with the soil on the ground, forming a bloodthirsty wolf-run monster. These two pictures remained in Lu Chen's mind for a long time before they disappeared. It was so long that Lu Chen felt that a month had passed before the two pictures gradually dissipated.

In reality, after Lu Chen added the potential point, he stood there and was stunned for a long time. However, in just five minutes, he trembled all over and woke up. Lu Chen, who came to his senses, looked at him. He was still in the training space and was not popped out by the space.

This situation made him realize that time has not passed long. His time in the training space is about to expire, so the space will not be polite. When the time comes, he will definitely be popped out.

After discovering that the time had not passed, Lu Chen thought about the two pictures just now, but this time he couldn't remember them anymore. After thinking about it, Lu Chen understood that the two pictures should be the insights of using the potential point to upgrade skills. As for feeling that the time is long, it may be because the consciousness's sense of time has been confused.

However, after so long, Lu Chen did understand some things from those pictures and understood the essence of these two skills. The most important thing in the earthen prison is toughness and unbreakable. Summoning giant dogs is different from the common earth-type skills. Most common earth-type skills show toughness and thickness, showing the broad side of the earth, while this skill that combines resentment shows the cruel side, showing the resentment buried under the earth.

The same is true for the upgrade of these two skills. The maximum-level dirt priest has changed from a railing cage to a stone priest with four sides, with walls in the air. After reaching the maximum-level stone priest, it can weaken the enemy's strength after trapping people. The enemy in the stone priest will bear twice the gravity.

This should be affected by Lu Chen's magnetic power. Lu Chen discovered something after his skill was upgraded to the maximum level. Although it was the same skill, after upgrading to the top level, everyone's skills were different. The skills would adapt to their own system after upgrading to the maximum level.

In other words, if you do not use potential points, only by familiarizing your skills with your own power system and integrating them into your understanding will the skills be upgraded to the top level. The potential points can speed up this change. This situation has made Lu Chen more interested in potential points and want to know what it is and can change the skills in such a way.

However, Lu Chen's authority is too low now, so Xiang Bi can't ask anything. He could only keep this question in his heart and look at another skill that has been upgraded to the maximum level.

Giant Dog Summoning. After the Giant Dog Summoning has been upgraded to the maximum level, the summoned Giant Dog’s strength has been improved, and it is already stone-like. However, the strength of a single person is still not very strong, and it cannot be compared with the earth element. However, it is not useless to upgrade to the maximum level of Giant Dog Summoning to the maximum level. A level seven giant dog can summon eight giant dogs once, plus the ring that Claire exploded (the number of summoned giant dogs has doubled).

Now Lu Chen summoned 16 giant dogs at one time. The 16 giant dogs cooperated with each other, which was not as weak as the earth element. Moreover, compared with the earth element, they may not have absolutely powerful power, but their speed is not too slow, so there is no weak one. With their restraint and the main attack of the earth element, Lu Chen's strength has increased by no means a little bit.

For Lu Chen, the only bad news is that although the number of giant dogs summoned is large, the mental power consumed makes Lu Chen a little trouble. Although Claire's ring can double the number of giant dogs, it cannot reduce the spirit consumed to summon giant dogs. The remaining giant dogs still need to consume Lu Chen's mental power to summon.

However, Lu Chen cannot ask for more C-level equipment. At the same time, it is precisely because of the equipment that matches the Giant Dog skills that Lu Chen prioritizes upgrading the Giant Dog Summoning skill. Even if he spends a lot of potential points for this, he will be willing to spend so much time, energy and potential points, simply upgrading such a C-level skill is not worth it.

In addition to these two skills that have been upgraded to full level, the defenses that have been upgraded to level 4 are even stronger. It is impossible for ordinary sword attacks to break the defense of the stone skin.

However, accordingly, the agility of those who have blessed the stone skin technique has been greatly affected. They can no longer make soft movements on the surface that has been stoned. As a purely blessing skill, this has both advantages and disadvantages. However, for Lu Chen, who has soil control, this skill is the most suitable for him.
Chapter completed!