I have a magical tree

That night, Xu Dao went out of the city again. With the experience of the first time, he was more comfortable hunting monsters this time.

He also discovered that the influence of his own spirituality on the number of monsters was not due to attraction, but the radiation range.

The stronger the spirituality he released, the larger the radiation range, and the more monsters were attracted. The more monsters there were, the greater the probability of high-level monsters.

The spiritual light like Xu Dao, which was pure to the extreme, was equally attractive to low-level monsters and high-level monsters.

The effect of spirituality on monsters was roughly equivalent to the effect of catnip on cats. It was rooted in instinct. Except for a few intelligent alien species, ordinary monsters had no ability to restrain spiritual creatures.

Xu Dao was even more curious about the cause of monsters. He was born and raised in this world, and now his strength can occupy a place in the city, but he still knew nothing about the cause of the origin of the monsters.

Let alone him, in fact, Wang Lao and the others didn't know. If it was just a simple demon, Xu Dao would not be surprised, but these demons all showed different degrees of weirdness, which was very important.

However, if he wanted to really find out the problem, with his current strength, he probably couldn't do it.

Two hours later, the bone marrow of the last bone in Xu Dao's body was tempered. This bone was located in the skull. This was probably the most dangerous step in the bone forging and marrow washing stage.

This is the case when forging bones, and it is also the case in the marrow washing stage, because even for martial artists, even at the grandmaster stage, the head is still the most important part.

At the martial artist level, even if the internal organs are severely damaged, as long as there is a healing pill in hand, life can be maintained and wait for it to recover slowly.

Only once the head is broken, the person is really gone!

When the bone marrow in the last bone of the head was transformed into golden marrow, Xu Dao felt that his own blood and qi seemed to be completely connected at this moment, becoming more energetic. Drops of precious blood as heavy as mercury were produced by the golden marrow, and then put into the blood and qi.

And those precious bloods were incompatible with his original blood, just like water and oil, incompatible with each other.

Xu Dao finally understood the true meaning of the blood exchange barrier at this time. The quality of the original blood in his body was far inferior to the newly made precious blood, and the two could not be fused. He could only replace the old blood and excrete it from his body.

The precious blood was heavy but highly active. With a thought, he squeezed a drop of precious blood to his fingertips. At the moment when the precious blood came out of his body, he actually smelled a fragrance without the slightest smell of blood.

You know, even if he reached the fifth level, his original blood was still fishy, ​​because fishy smell is one of the characteristics of blood.

He estimated that when he passed the blood exchange barrier, he would almost be a human-shaped precious medicine, and he was afraid that he could really eat it to prolong his life.

Xu Dao took the drop of precious blood back into his body. This is a good thing, and it can't be wasted, and then continued to hunt monsters.

Blood transfusion is not something you can do whenever you want. Every time a warrior transfuses blood, a huge amount of resources are needed. This is why many martial artists are stuck at this step.

Blood transfusion is not only a huge loss for the warrior himself, but also a huge loss for his wealth. Therefore, most people do not pursue the number of blood transfusions too much.

As long as it reaches four or more times, it is considered a qualified blood transfusion, and you can successfully break through the fourth-grade top martial artist.

After all, the resources required for blood transfusions increase with the increase in the number of blood transfusions. In the later stage, it doubles, and ordinary people can't support it at all.

Even for those big families, only the real heirs of the family will get such huge resource support.

But even so, generally only six blood transfusions are done, which is a limit.

The theoretical limit is nine times, but in fact, six times is the limit. Some people are limited by resources, while others are limited by qualifications. There is also a saying that after the number of blood transfusions reaches seven or more times, there will be an ominous arrival, which is harmful to the warrior.

The person who died suddenly due to eight blood transfusions is a proof.

In this world, Xu Dao felt that this statement was probably reasonable and not groundless. Perhaps it was because the blood that had undergone blood transfusions became increasingly spiritual and activated as the number of blood transfusions increased, and finally formed an alternative life in the human body.

Otherwise, it would be difficult to explain why the blood of the warrior who had undergone eight blood transfusions could still wriggle on the ground a few days after his death, like a living thing.

As he continued to kill monsters, the bronze giant tree absorbed the monster energy and fed back pure and powerful energy.

And these energies urged the jade bones and golden marrow to continuously produce precious blood. The content of precious blood in Xu Dao's body increased rapidly.

And Xu Dao was also a bold one. He felt that the content of precious blood in his body had increased, so he began to continuously discharge the excess old blood from the body to make room for the precious blood.

Perhaps only he could force his way through the blood transfusion.

For ordinary people, blood transfusion is a gradual and extremely dangerous process. Their choice is to first nourish a body of precious blood, and then find a hidden place to slowly discharge the waste blood from the body and replace it with precious blood.

This process is often very slow, and one needs to be careful and not impatient, lest the qi and blood in the body riot and flow backwards, which may lead to unpredictable things.

However, Xu Dao's approach is extremely radical. He is impatient to drain the precious blood while expelling the old blood, which increases the efficiency by more than several times.

If an ordinary warrior saw this scene, he would probably scold him as a madman.

It's not that Xu Dao was arrogant, he was confident in doing so. He had never felt that the blood in his body was violent and unruly. Whether it was the original old blood or the newly created precious blood.

Although the precious blood was heavier, it was just because its quality had improved. Xu Dao's dispatch was not sluggish at all, but more agile and natural. He even felt that the precious blood was more closely connected to himself.

That's why he dared to do this.

After a night of fighting, Xu Dao returned to the city before dawn.

This night's harvest was also not small. The bone forging and marrow washing were completely completed, and even the first blood exchange was about one-tenth of it.

It is estimated that in another three to five days, the first blood exchange will be completed. This blood exchange will probably make his strength increase again. There is no need to think about reaching the Grandmaster level, but compared with the past, it can allow him to take a few more steps in the natural gap between the fourth and third grades.

But this is not the biggest benefit of blood transfusion. The most obvious benefit for warriors after blood transfusion is that the quality and quantity of qi and blood are greatly improved. They will not easily suffer from excessive blood loss and insufficient qi and blood. Their endurance is improved sharply, and their own recovery ability is strengthened again.