Combat weapons are mainly divided into magic weapons, Taoist weapons and spiritual weapons, and in terms of quality, they are divided into mortal level, yellow level, Xuan level, earth level and heaven level.

Among them, the mortal-level quality is the lowest, most of them are at the level of magic weapons, and the quality of the yellow and Xuan levels up is basically a Taoist weapon, and when it comes to the foundation and heaven level, it has reached the level of a spiritual weapon, which can basically be said to have a certain aura.

If it is subdivided, the mortal level, the yellow level, the Xuan level, the earth level and the heaven level are divided into nine grades, and there will be a big difference between each grade, and most of the weapons used in this Xuan Realm are the level of Dao weapons and low-level spiritual weapons, that is, the Xuan-level 1-9 Dao weapons, the earth-level 1-9 spiritual weapons, and as for the upper realm, they are basically the spiritual weapons of the earth-level and the heaven-level 1 to 9 orders.

Right now, in the Xuan Realm, most of the weapons used by martial cultivators are concentrated in the range of Xuan-level first-order to ninth-order Dao weapons and earth-level first-order to ninth-order spiritual weapons, according to Yuntian's current cultivation at the first level of Xuanzun, as well as his extraordinary physique, at least the aura of the fourth order or above the earth-level level is needed to exert the power of his true qi.

However, according to this standard, the weapons that Yuntian originally possessed did not have this qualification at all, so Yuntian did not have any expectations when he entered the sea of knowledge space.

But it was this that surprised Yun Tian, when he put these weapons into the sea of knowledge space before, none of the weapons reached the fourth-order quality of the ground level. But now that Yun Tian took a closer look, the few weapons he had put into the core of the sea knowledge space before had basically reached the quality of the fourth order or above the ground level. Obviously, the quality of the weapons that were placed here before has been greatly improved.

Originally, the yellow-level eight-grade magic weapon lotus flying leaf has now become a fourth-grade spiritual weapon of the earth-level fourth; the earth-fire flame banner of the first-grade Dao weapon has now become a sixth-grade spiritual weapon of the earth-level level; the seven-star beaded array of the yellow-level nine-grade magic weapon has now become a spiritual weapon of the fourth-grade ground-level; the second-grade Dao weapon dragon pattern Zimu Ruyi has now become a spiritual weapon of the eighth grade; the Xuan-level first-grade Dao weapon True Fire Flow Golden Knife is now also a spiritual weapon of the sixth grade of the earth.

Even the one hundred and eight mortal-level third-order magic weapon flame flying knives created by Yuntian before have now become ground-level first-grade spiritual weapons, and don't look at the grade of the flame flying knives is still lower than other spiritual weapons, but after all, it is composed of one hundred and eight flying knives, once it is fully used, the large array composed of more than a hundred flying knives can simply be described as overwhelming. Especially these more than 100 flying knives are all ground-level first-grade spiritual weapons, and when such a power is displayed, it is not something that ordinary people can resist.

Yun Tian went deep into the sea space this time, originally to see if these spiritual weapons could be used, of course, his purpose was to find some usable weapons, but Yun Tian didn't have much expectations before, because the original grade of those weapons was too low. But he didn't expect that after being stored in the core of the sea space for several years, these weapons had actually undergone tremendous changes, and with the current level of these weapons, they could already be used by Yuntian against the enemy.

Now these weapons, the Lotus Flying Leaf is a ground-level four-grade spiritual weapon, the Earth-Fire Flame Banner is a ground-level six-grade spiritual weapon, the Seven-Star Lianzhu Array is a ground-level four-grade spiritual weapon, the Dragon Pattern Zimu Ruyi is a ground-level eight-grade spiritual weapon, the True Fire Flow Golden Knife is a ground-level six-grade spiritual weapon, and the one hundred and eight flame flying knives are a ground-level first-grade spiritual weapon.

At present, the quality of these weapons has been greatly improved, and each one has reached the level of spiritual weapons, and many spiritual weapons are shining in front of Yun Tian, exuding a powerful aura. At the moment, as long as these weapons are properly matched, they will definitely be able to play the greatest role.

Yun Tian took these spiritual weapons in his hand one by one and played with them carefully, he wanted to familiarize himself with these spiritual weapons as soon as possible so that he could control them skillfully.

However, when Yun Tian used his spiritual sense to comprehend these spiritual weapons one by one, he discovered a phenomenon.

Each spiritual weapon seemed to be releasing a huge amount of spiritual aura at this time, and this feeling made Yun Tian a little confused.

It stands to reason that although the spirit weapon itself has a powerful aura, it will not reach the point where it is now, because Yun Tian obviously feels that in every spiritual weapon now, there is a powerful breath that makes people palpitate, this kind of breath is no longer what a spirit weapon should have, and the current breath has simply reached the level of the spirit weapon self-detonation.

Of course, it is impossible for these spiritual weapons to explode by themselves, and their states are very stable, so there is only one possibility, these spiritual weapons have accumulated huge energy, and they should still be accumulating the energy needed for upgrading!

With this discovery, Yun Tian's heart was even more excited, he was really eager to personally participate in the self-upgrading process of these spiritual weapons, so as to improve his refining level.

The Great Yan True Recipe that Yun Tian mastered before also contained a lot of records of refining weapons, but Yun Tian was familiar with alchemy and formations before, but he had not studied refining weapons deeply, mainly because the time was too short and he did not have enough energy to study deeply.

However, right now, it just provides an opportunity for Yun Tian, because the self-growth of the spirit weapon in the sea knowledge space is simply an extremely incredible change, this change is obviously very rare, and there is almost no such record in Yun Tian's memory.

What happened to these spirit weapons in the Sea of Consciousness space? Yun Tian was eager to know. So now that this opportunity has appeared, Yuntian did not hesitate to make a decision to take a closer look at the changes that have taken place.

At present, the surging aura in these spiritual weapons gradually began to go berserk, Yun Tian released his spiritual sense, covering all the spiritual weapons, and at the same time, he also escaped a part of his essence blood and attached it to these spiritual weapons, and at the same time, it also urged many spiritual qi at the core of the sea of consciousness space to surge towards this side.

For the further upgrade of the spirit weapon, Yun Tian is absolutely happy, believing that this will only be good for himself and not harmful. However, at this time, Yuntian must not only ensure the successful upgrade of these spiritual weapons, but also artificially promote the improvement of these spiritual weapons, and strive to further promote the sublimation of their quality, after all, the higher the quality of the spiritual weapon, the more it can enhance its combat effectiveness, and no one will think that their weapons are of high quality.

At present, these spiritual weapons are full of spiritual energy, although they look quite peaceful, but Yuntian also knows that this spiritual energy is too powerful after all, once it breaks through a certain bottom line, it may cause the instability of the internal structure of the spiritual weapon, if the fluctuation of the spiritual energy is too large and breaks through to a certain critical value, it is very likely to cause internal changes in the spiritual weapon, and even destroy the spiritual weapon.

So now, Yun Tian can't hesitate anymore, he must complete the promotion of the spirit weapon as soon as possible, and consume these excess spiritual energy to ensure the safety of the spirit weapon.