Watching the bucket-thick sky thunder fall, Lin Mu could only resist with all his might.

But even so, after the first wave of thunder fell, it still split the forest and vomited blood.

This is still the flawless body of the forest tree, and it has entered the Great Perfection. If it was in the previous state, this first wave of catastrophe would probably be able to make Lin Mu half dead.

Although he survived the first wave of the Tribulation, Lin Mu did not take it lightly, and was still engrossed in staring at the Tribulation, guarding against the next Tribulation.

The second wave of the Heavenly Tribulation was a little sluggish, but the power of this second wave of the Heavenly Tribulation was obviously twice as powerful as the first wave of the Heavenly Tribulation.

"Grass!"

When Lin Mu saw this, he couldn't help but burst into a foul mouth again, and then directly sacrificed the Thunder Robbery Gun, preparing to use the Heavenly Thunder to deal with the Heavenly Thunder.

Although the Thunder Tribulation Spear has been blessed several times more in Chengxiantai, it is still a big step behind this enhanced version of the Heavenly Tribulation.

But fortunately, the Thunder Tribulation Gun is not useless at all, and it does cancel out a lot of the power of the Heavenly Tribulation.

But even so, the forest was still chopped and vomited blood one after another.

finally withstood the second wave of tribulations, and the third wave of tribulations almost followed.

"It's really not a life. Lin Mu was also depressed at this time.

If he had known this, Lin Mu would rather not covet this bit of immortal energy.

There was no way, Lin Mu could only take out the Shadowless Knife and prepare to use the Shadowless Knife to resist the Heavenly Tribulation with himself.

After the Shadowless Sword fused with several genius earth treasures, the grade also rose to the peak of the eighth grade.

If you don't consider anything else, only consider the material of the spirit treasure, the shadowless knife is definitely not worse than the nine-grade aura. Even ordinary immortal weapons can't be compared to the Shadowless Knife.

"Boom!"

"Boom!"

As if he didn't want money, the Heavenly Tribulation bombarded the Shadowless Knife, but although the power of the Heavenly Tribulation shook the arms of the forest, the Shadowless Knife was obviously not damaged, and it was still brilliant.

"Man, let's fight together. Lin Mu stroked the blade of the knife and said.

"Buzz!"

As if in response to the woods, the Shadowless Knife trembled slightly.

Seeing that the Shadowless Knife was so spiritual, Lin Mu was also pleasantly surprised. However, now is obviously not the time for surprises, Lin Mu's first task now is to deal with the catastrophe in front of him. As for the rest, we can talk about it later.

After the third wave of the tribulation, the fourth and fifth waves of the tribulation fell almost at the same time, which made Lin Mu can't help but scold his mother again.

But fortunately, Lin Mu had the Shadowless Knife in his hand at this time, so he didn't have to be afraid of anything.

Lin Mu took the Shadowless Knife and slashed in the midst of the Tribulation, almost scattering the Tribulation.

"Whew!"

"Whew!"

finally withstood two waves of heavenly tribulations, and Lin Mu was also panting heavily.

"Huh!"

Seeing the constant flickering thunder light on the Shadowless Knife, as well as some strange changes that occurred on the blade, Lin Mu was also shocked.

After thinking for a moment, Lin Mu suddenly felt ecstatic in his heart, and said excitedly: "I understand! I understand! The reason why you failed to advance to the Nine Rank Spirit Treasure is that you didn't create your own battle space." It's not that the material is limited, but you also need the tempering of the Tribulation. ”

Lin Mu had consumed so many top-level materials before, and he originally thought that he could make the Shadowless Knife directly advance to the Nine Rank Spirit Treasure in one fell swoop.

But in the end, it was stuck on the peak of the eighth grade, and Lin Mu was originally ready to continue to look for top-level materials to help the Shadowless Knife advance. But unexpectedly, today's unexpected catastrophe let Lin Mu know the secret of why the Shadowless Sword couldn't advance to the Nine Rank Spirit Treasure.

"In that case, then you can enjoy this tribulation alone. Lin Mu stroked the Shadowless Knife, and directly threw the Shadowless Knife into the air, leaving the Shadowless Knife alone to enjoy the baptism of the Heavenly Tribulation.

Lin Mu's flawless body has already been consummated, and it is completely impossible to cultivate the True Realm to advance again.

This is not to say that there are no conditions for promotion, but it is limited by the rules of the avenue after the change.

This is also what Lin Mu realized after he was promoted to the Great Perfection of the Flawless Body.

If it was in the Ancient Age, Lin Mu's flawless body might still be able to continue to advance, but now in the cultivation realm under the new Dao rules, Lin Mu has completely lost the airborne to rise.

Without room to rise, this catastrophe will naturally not be of much use to the forest.

The Shadowless Knife was made by Lin Mu and let it fight against the Heavenly Tribulation alone, and it also trembled with excitement.

The sixth wave of Heavenly Tribulations fell, and the Shadowless Sword took the initiative to meet them, attracting all the Heavenly Tribulations to baptize themselves, so that they could advance to the Nine Rank Spirit Treasure.

To be honest, Lin Mu has never seen Lingbao's promotion, especially from the eighth rank to the ninth grade.

You must know that no matter how powerful the eight-rank spirit treasure is, even if it is an ancient eight-grade spirit treasure, the gap between it and the ninth-grade spirit treasure is immeasurable.

It is a magic weapon battle space, which is incomparable to the eight-rank spirit treasure.

The battle space is somewhat similar to a powerful battle cage, in this cage, everything is controlled by the Nine Rank Spirit Treasure, and it can be said that the power of the Nine Rank Spirit Treasure here is almost invincible.

Of course, if you encounter a more powerful spirit treasure, or a stronger monk, then this battle space is useless.

But such cases are also very rare, very rare. Generally speaking, as long as he is shrouded in the battle space of the Nine Rank Spirit Treasure, then this person is equivalent to certain death.

Lin Mu stood below and looked at the Shadowless Knife, constantly changing, constantly having thunder tribulations imprinted on the blade of the Shadowless Knife, leaving mysterious patterns on the blade of the Shadowless Knife, Lin Mu also knew that Shadowless was about to give birth to his own battle space.

"A magic weapon can give birth to a battle space, why can't that person?" Lin Mu's heart also suddenly flashed such a thought.

"Domain!"

At the same time as this thought appeared, such a word appeared in Lin Mu's mind at the same time.

"Domain!" can be regarded as a human battle space.

However, the domain is more powerful than the battle space of the magic weapon, because once the battle space of the magic weapon is formed, it will hardly change. But people are different, and they will improve with their cultivation.

In a person's domain, this person is the absolute master, and he can decide the life and death of everyone in the domain. Of course, the premise is that his cultivation is lower than or equal to you.

However, not everyone can have the domain, only those immortals with the most talent can really have it.

Lin Mu was in the fairy realm back then, and he had also looked for a way to form a domain. However, the answers Lin Mu got were only eight words - they could only be understood but not spoken.

Because everyone's domain is completely different, and everyone's way of forming a domain is also completely different, so this kind of thing can really only be understood. Because even if the other party tells you, you may not be able to use it.

Later, when Lin Mu wanted to continue looking for a way, he was beaten down by the Four Emperors. The cultivation is gone, so naturally there is no need to think about any domain matters.

However, today, Lin Mu saw that the Shadowless Sword was forming its own battle space, which also revived the idea of searching for the domain in Lin Mu's heart.

"The Shadowless Knife can form its own battle space because it is a spirit treasure, if I treat my body as a spirit treasure, can I form my own domain?" Lin Mu stared at the Shadowless Knife, and also thought secretly in his heart.

However, this idea is one, and the more Lin Mu thinks about it, the more feasible he feels.

Lin Mu let go of all his thoughts, calmed his heart, and then imagined himself as the existence of a spirit treasure like a shadowless knife.

Soon, Lin Mu's mind entered the emptiness, and his arms began to move slowly in an unconscious state.

A series of mysterious trajectories appeared, and the space around the forest trees was also slowly producing, some subtle changes.

"What is he doing?" asked the Blood Spirit Dragon, looking at Lin Mu in the Chaos World.

The Guangdao man said in a serious tone: "He will create his own domain again. It is very likely that Lin Mu is about to create a history, a monk who has his own domain without becoming an immortal!"