But I'm not very good at using these elements. The so-called lack of good is that he always habitually uses the techniques he is familiar with in battle, and often ignores the use of other elements.

The advantage of this is that you can give full play to the commonly used techniques and become more and more refined.

The disadvantage is that there are few changes, and it is easy to grasp the rules when you meet a master.

If you want to be invincible forever, then you must develop new techniques, especially to make full use of the resources at your disposal!

After he returned to the villa, it was Ah Ye who opened the door, and Ah Ye greeted him with a smile: "Brother Feng is back?"

Yu Feng nodded and said, "Well, are Xiao Mustard and Xiao Yu here?"

Ah Ye said: "I went out early in the morning, saying that I was going to climb the mountain. Spirits are high!"

"Yuanba with them?"

"Yes. ”

Feather Wind looked around and asked, "What about the black cat?"

"It seems that it was taken away by Xiao Kei, saying that he was going to take it to the mountains to catch mice. ”

Yu Feng had a black line on his head, and thought to himself: That kind of guy can't catch mice at all!

However, at the same time, Yufeng also put his mind at ease, with the black cat by his side, they must be fine.

Yu Feng returned to the bedroom, took a hot bath, and then began to practice cross-legged.

Today, Feather Wind plans to develop the power of Gu worms.

And the way of developing Gu worms is eclectic, he feels that if he wants to develop Gu worms, he has a natural advantage, that is, the Gu worms in his body do not have a 'Gu core'. As long as these Gu worms are endowed with Gu cores with different attributes, they will form a new type of Gu worm.

So, what kind of Gu worm do you want to develop?

He was still very unfamiliar with the realm of Gu worms, and now, all he could do was inject different elements into Gu worms as cores, but this was a kind of Gu technique at the initial stage. If he wanted to improve his Gu skills, he would have to constantly experiment with these "Infinite Gu Worms".

Yu Feng knew that he belonged to the fire physique, and if he wanted to assist in his cultivation, he had to use a wood or wind attribute Gu worm to cultivate the most advantageous for himself.

He is not proficient in the wood system, but he has mastered some things in the wind system, and the "seeking wind against the trend" that he often used at the beginning is the power of the wind system.

As early as when he was in Death Valley, he had done an experiment of mixing Gu worms with hellfire, although the power was good, but because that method was too energy-consuming, he didn't continue to use it in the future.

Now, you should try to use the power of the wind system as the core of the Gu worm and see what kind of situation will come up!

The combination of wind and Gu worms is not bad, but the activation conditions of this technique are relatively harsh, and it must be activated under the premise that both sides are stationary.

If you make the slightest mistake, the technique will fail.

Yu Feng was thinking that if he improved this technique, he might be able to make a difference.

Improvement should start from two aspects. One is the activation condition, and the other is its power.

The original Gu worms were more than enough to deal with some low-level characters, but if they were used to deal with some masters, I am afraid that these Gu worms would not only not be able to sneak into their bodies, but even if they successfully sneaked in, they might not be able to achieve the expected effect.

Feather Wind Spirit moved, did you combine them with lead rods? If you apply a Gu worm with the wind element to the lead rod, and then use the lead rod to pierce the opponent's body, then the Gu worm will enter the opponent's body without restrictions.

If you can pierce the opponent's body with a lead rod, adding the explosive effect of the Wind Gu Worm can greatly increase the lethality.

This scheme can be used in a head-on confrontation, but this is only a means to increase power, and it is generally not necessary, because the use of Gu worms will consume additional war spirits. And this scheme can't play the effect of seckill.

And what he is committed to creating is a kind of "assassination technique"!

The so-called "assassination" is not "open killing", relying not on frontal confrontation, but by surprise and taking advantage of the enemy's unpreparedness, Yufeng's "doppelganger assassination technique" is a typical assassination technique!

Rely on one doppelganger to attract attention, and the other body to sneak attack, so that you can kill the opponent in the shortest time and with the highest efficiency!

As a top killer in the late stage of the Great Chaos, Yu Feng is naturally the most accustomed to using this move!

And the biggest advantage of Gu worms is that they are hidden, and if they can combine this characteristic with a lead rod to create an assassination technique, it will be perfect.

And this idea is actually not difficult to implement, as long as the lead rod is made small, and the lead nail is difficult to find with the naked eye!

Thinking of this, Feather Wind stretched out his hand and planned to make small lead nails, which were not difficult to make.

The key is how big the nail is.

It can't be too big, and if it's too big, it's easy to be discovered by the other party. It can't be too small, if it's too small, the fewer Gu worms it can carry, the power will be greatly reduced!

In the end, Feather Wind decided to use a lead nail the size of a thumb knuckle, so that if the speed was fast enough, it should be able to reach a level that could not be seen by the naked eye in a combat situation.

As soon as Yu Feng's mind moved, the lead molecule began to split rapidly, and then a lead nail the size of a thumb knuckle was squeezed out of the palm of his hand.

Yu Feng squeezed it in his hand and flicked it hard at a big tree outside the window!

Chirp!

Syllable!

Under deliberate observation, Yu Feng only saw a small black light, so this can basically guarantee that it can achieve a surprising effect in battle.

Therefore, the size setting of the first step is considered to be passed.

Then, it's the second step, carry the Gu worm!

Feather Wind tried to fill the surface of a lead nail filled with Gu worms filled with wind cores, and when it was arranged, Feather Wind aimed at the tree again, and he held his breath and flicked the lead nail into the big tree.

As Feather Wind moved his mind, the lead nail exploded, but Feather Wind was not happy at all.

Because the power of the explosion was really unsatisfactory, only a palm-sized piece of bark was blown away!

It seems that if you make this ordinary lead nail, you can't exert the power of Gu worms.

Because the lead nail you want to make is small, if you only attach the Gu worm to its surface, the number of Gu worms will be very limited. And the Wind Gu Worm relied on expansion to explode.

However, this kind of explosion power must not be enough to hurt the other party if it is faced with the negative path. The negative dao technique is a killing technique, and if it does not achieve the effect of taking the enemy's life, it will lose its meaning.

Do you want to enlarge the lead nails a little more!?

No, because I developed an assassination technique, if you want to make the lead nails carry enough and the power is enough to be lethal, according to this ratio, you must at least use fist-sized lead nails.

However, then there would be no assassination effect at all.

What should I do?

And just then, his thoughts were broken by a hurried knock on the door.

Yu Feng opened the door and found that it was Yu Mengling, she was sweating profusely, and said with a anxious look: "I heard that Ah Ye said that you are back, so I came to look for you." Little Mustard has a high fever!"

"What?!" Yu Feng wondered in his heart, did she climb the mountain, and, according to Ah Ye's words, her spirit was still very good, why did she suddenly have a fever in one day?

However, Yu Feng didn't have time to think about it, and followed Yu Mengling to their bedroom.

In the bedroom, Hananokei lies quietly on the large white bed, with a towel on his forehead.

Yu Feng hurried over in a few steps, and found that Hua no Kei had his eyes closed, as if he was asleep, Yu Feng picked up the towel and put it on his forehead with the back of his hand, although it had been cooled down, it was still very hot.

At this time, Yu Mengling reached into the blanket, took out a thermometer, held it up to look at it, and then handed it to Yu Feng.

Yu Feng took the thermometer and looked at it, and couldn't help frowning, he had a high fever of forty degrees!

"Has she ever been in the water or caught a cold?" Feather Wind asked as he took Hana's wrist and used the primordial spirit to condition her.

Yu Mengling shook his head and said: "No, nothing happened, just an ordinary climb to see the scenery, and in the last second, he was still happily saying, 'The mountain over there is like a radish, and the next second it suddenly starts to burn." Then, within five minutes, he fell into a coma. Moreover, this is not the first time that this has happened. It's the third time since you left. ”

"The third time!?" Feather Wind said in surprise, "What happened to the first two times?"

"The first time I was eating peanuts in the living room, I suddenly fainted, I couldn't wake up, and then I found out that it was a fever. After being sent to the hospital, there was no effect on either taking antipyretic medicine or taking fever-reducing injections. A thorough physical examination was done and nothing out of the ordinary was found. But by the next day it was completely fine. The second time was in a training session, when I was about to train with the opponent, I suddenly fainted, and the situation was the same as the last time. When he was sent to the hospital, the results of the examination were the same, and it was still ineffective for any medical treatment. Anyway, the next day it was completely fine. This is the third time, so I just don't send it to the hospital......"

Feather Wind's spirit child swam in the body of Flower Mustard, and he also did not encounter any energy existence that could be destroyed or suppressed, and, according to Jade Dream Spirit's description, these three fainting and fever had no common denominator, that is, it could happen anytime and anywhere.

"Although it is possible that it will be fine the next day, however, I am always worried that this situation will not last long, or even ...... I even want to ...... Think...... Maybe one day she won't wake up again......"

Yu Feng used the junior spirit son to probe the body of Flower Mustard again, but still didn't find anything.

Yu Feng stood up silently and said to Yu Mengling: "You don't have to worry, I will find a way." ”

"You...... You must save the mustard. "The first time Yu Feng saw such a jade dream spirit, at this time she was a completely helpless little girl's posture.

Yu Feng looked at Yu Mengling and said, "Of course, I will never give up on Xiao Kei." You take care of Mustard here, I'll go out for a while. After saying that, he walked out of the room, according to Jade Mengling's description, he knew this situation, even if he sent Flower Mustard to the hospital, it would be useless.

He came out into the yard and saw the black cat lying in the last shade of the setting sun.

"Mr. Black Cat, I hope it didn't disturb your rest. Feather Wind said.

"Oh, your mission is done?" said the black cat as he opened his eyes and glanced at Feather Wind.

"Let's not talk about this for now, you know very well about the Flower Mustard, right?"

"Of course, I'm not blind. The black cat said in a non-yin and non-yang manner.

Yu Feng had already adapted to his attitude, and said, "I can't find out the reason, and I can't find any vision with Lingzi probe." It's really strange, if it's Mr. Black Cat, you should know the reason for this, right?"

"Hmph, what a joke, what a doctor doesn't know, how can I know. ”

Yu Feng looked at the black cat for a while, couldn't guess how much of what he said was true, and continued: "If you know the reason, please help her, I beg you." Feather Wind said.

A glint flashed in the black cat's green eyes, and he said, "I didn't expect a man as arrogant as you to ask for help." ”

"Yes, please. Yu Feng said with a reverent bow to the black cat.

However, at this time, the black cat closed his eyes and said, "I don't know." Then he continued to lie on his soft paws.

Yu Feng glanced at the black cat, sighed and turned around and walked towards the bedroom, Yu Mengling wept while changing the towel for Flower Mustard, who was still lying there as if he was asleep.