As for the other secret skill, the ice arrows are fired, Xu Yi feels that after learning the ice first, it will be easier to learn it again.

Soon, they encountered a level 10 beast.

"Lu Ke, you come and use the burst flame, I'll protect you on the side. Xu Yi felt that it was better to let Lu Ke use the Burst Flame first, after all, this kind of secret technique also needs to be practiced continuously before it can be mastered gradually.

Lu Ke nodded, and immediately greeted the level 10 fierce beast.

This was the first time she had used this secret technique, and although she controlled it carefully, the secret technique still drained half of her mental power in an instant.

Before the level 10 beast could attack, it was surrounded by flames.

The screams of the fierce beasts were very terrible, and they were a little infiltrated when they sounded.

However, within a few minutes, the screaming stopped.

And with the fire.

The carcass of the beast was gone, and only a cloud of ashes remained.

Inside the ashes, there was a reddish mass.

Brain crystal, Xu Yi recognized it, but he didn't expect it to be burned red.

"This secret technique is too powerful, isn't it?" Lu Ke couldn't believe her eyes, although she knew that the secret technique was very powerful, but she didn't expect it to be so terrifying.

A level 10 fierce beast that was burned to ashes in a matter of minutes?

Such a secret technique, although powerful and effective, but the corpses of the fierce beasts have been burned.

The flesh of the beast is a source of food for them.

If they don't eat meat, they won't be able to get enough energy.

Therefore, this secret technique that directly burned the fierce beast to ashes, Lu Ke and Xu Yi both felt that it was not a good secret technique.

This secret skill can only be used for quick battles.

After all, compared to martial arts, this effect is very direct, and the fierce beast will be burned directly to ashes within a few minutes, and those who use secret techniques in this process will not show any signs of injury.

And Lu Ke felt that he didn't need half of his spiritual power, and controlling it at three or four percent of his spiritual power was enough to burn a fierce beast of the same level.

If you are one realm higher than your own strength, you should use fifty or sixty percent of your spiritual power, and you should be able to burn to ashes.

"Regain our mental strength, and we'll continue to search for the beast and try the secret technique of ice. Xu Yi said a word to Lu Ke, and then used his spiritual power to control the brain crystal that was still reddening and flew into the sky.

In this way, if it explodes, it will not hurt Lu Ke.

Flames are meant to burn. Therefore, Xu Yi is quite satisfied with this result.

This, if used against other civilizations, is a very useful and powerful means of attack.

After all, it is impossible for humans to eat the corpses of those advanced civilization creatures.

Although they are all meat, they have their own civilization like human beings, even if the appearance is too peculiar, Xu Yi feels that it is impossible to eat it.

At the same time, he also did not want the creatures of other advanced civilizations to eat humans.

If there really was such a civilization, Xu Yi felt that it would be better to concentrate his forces and kill them.

Becoming the food of another civilization, Xu Yi felt that it was not very acceptable.

However, you have to have enough strength to do it.

If the beast had an idea, it was estimated that it would choose to kill all the humans as soon as possible and make the humans disappear completely.

Unfortunately, although there are fierce beasts on this planet that completely surpass the strength of humans, they have not yet discovered that humans have begun to invade their planet.

To all the fierce beasts of the Spirit Blue Star, humans are invaders.

Xu Yi also admitted this, and the other humans also admitted it.

However, for their own survival, they can only attack the fierce beast.

If you don't do it, you will be eaten by fierce beasts and you will become extinct.

Therefore, humans would rather choose to exterminate other fierce beasts to maintain their own survival.

Any kind of creature, any kind of civilization, the minimum requirement, is survival.

In order to survive, to continue life, a species does not care at all what other species think.

This applies not only to human beings, but also to other civilizations.

"Xu Yi, I'm recovering. "It took five hours, and Lu Ke's mental power had completely recovered.

To be active in the territory of a level 10 beast, you must ensure that your mental power is sufficient.

Otherwise, if you encounter a fierce beast that acts in groups, it will be very troublesome.

Xu Yi and Lu Ke had already encountered 3 fierce beasts together, and they fought, but both of them were seriously injured.

If it weren't for Xu Yi taking out the primary body recovery elixir, it might take them a day or two to recover from their injuries.

Therefore, Xu Yi and Lu Ke's explosive flames can be used to deal with multiple fierce beasts.

Secret technique,In fact, it can be regarded as a group attack.。

"Okay, let's continue to look for the level 10 beast and see the effect of the ice. Xu Yi said a word to Lu Ke, and then began to move towards the front.

The red-hot brain crystal before has been put away by Xu Yi, and the brain crystal in it has not been lost much, and it is estimated that there is still 90% of the mental power left.

This kind of brain crystal is considered to be a relatively high-quality brain crystal.

It's a pity that when it got dark, neither of them encountered a level 10 beast.

Then, the two men set up their tents in a certain place.

Then, Xu Yi took a turn around the neighborhood.

Now, Xu Yi has begun to record plants again.

Because, with the scientific research department, he can take out so many treatments about drugs given by the system.

It is completely not enough for him alone, so a large department specializing in plants is needed. There is also a small department dedicated to formulations, as well as a department for the production of pharmaceutical products.

Now, the Pharmaceutical Division is being formed, and people who are interested in plants are gradually joining the Pharmaceutical Division's team.

In the future, there will be a lot of potions flowing out of this pharmaceutical division, helping countless divine masters and mages to improve their strength.

The formulas of those potions are all primary, and Xu Yi needs intermediate and high-grade potion formulas now.

Although it has not been obtained, Xu Yi knows that the system must have it, it is only a matter of time.

What humans have to do now is to figure out all the plants.

The medicinal properties of the plants are all understood, the habits are all figured out, and then as soon as the formula is in hand, they can find the corresponding plants to develop potions with the same effect to help humans improve their strength.

Only by this means can all mankind continue to become stronger, have the opportunity to surpass other civilizations, and have the strength to protect themselves and protect their new homeland.

The tragedy on the planet must not be repeated again.

Human beings can have a way out, and it is impossible to have a way out every time.

The strength is enough, the level of science and technology is enough, even if the sun explodes, human beings have the ability to protect themselves.

You can even build an artificial sun to sustain your survival.

Therefore, this medicine has an incomparably huge effect on human beings.

There is no point in hiding this knowledge.

Xu Yi's own energy was limited, and it was impossible for him to devote a lot of energy to studying these things while cultivating. What he can do is analyze every plant he encounters, and then record their information and transmit it to the people in the pharmaceutical department.

Xu Yi turned around, and after seeing two brand-new plants, he recorded them.

By the time he returned to the tent, Lu Ke's dinner had already been cooked.

After the two of them finished dinner, they also discussed the experience and conjectures of the use of the secret technique Explosive Flame, and then went to practice together.

Early the next morning, Xu Yi and Lu Ke ended their cultivation early.

After breakfast, the two of them set off and continued to look for the level 10 beast.

Less than an hour after departure, the two men encountered a flying beast.

So, Xu Yi made a decisive move.

Xu Yi used the cheats ice, and when he used it, Lu Ke felt the temperature around him plummet.

A cloud of cold air rushed directly towards the flying beast that flew down, and instantly froze it.

When the cold air touched the beast, it turned into a huge block of ice, estimated to weigh several tons, and smashed directly from the air to the ground, smashing the ground into a pit.

However, the ice did not crumble, not even crack at all.

"This ice is quite powerful, I only used 20% of my mental power, and I actually turned it into ice cubes directly, and I froze to death. After Xu Yi sensed it with his spiritual power, he pushed it back.

It's cold, it's too cold.

He felt that the temperature of the ice cube was estimated to be more than 100 degrees below zero.

The birds and beasts inside no longer have any breath of life.

Being frozen to death shows the strength of this secret technique.

Then, Xu Yi began to bombard the ice block with his spiritual power, wanting to see if the fierce beast inside was really completely dead, or if there was something else.

As a result, Xu Yi found that it was difficult for his spiritual power to blast open the ice.

In the end, Xu Yi still used the Spirit Eater before breaking the ice.

The beast and bird also shattered into several pieces along with the ice.

So, it's really dead.

Compared to the explosion of flames, it has the advantage that it will not completely destroy the corpse of the beast.

However, Xu Yi felt that in this case, it would be difficult to eat the meat of the fierce beast. The taste of these meats is expected to become very bad.

Therefore, this secret technique is also suitable for use in certain situations.

The two of them got this beast, and after getting the brain crystal, they didn't continue to explore.

Instead, he stopped to regain his strength, and by the way, studied the last secret technique, the ice arrows.

Xu Yi felt that this might be a more practical secret technique, and it should not cause the embarrassing situation that the previous two secret techniques were very practical at the moment.

In addition, Xu Yi also taught this secret technique to Lu Ke.

Lu Ke was surprised again when he heard that Xu Yi had another secret skill.

Because, Xu Yi's output is a bit like a sow.

took out three secret techniques one after another, and there was no interval in time.

If it weren't for the fact that Xu Yi didn't use the star catalog, and he hadn't left Lu Ke's sight, otherwise Lu Ke would have wondered if he was secretly in contact with the Spirit Clan's Spirit God Sister every day.

Such a speed is indeed incredible.

As for Xu Yi's possession of the system, Lu Ke had no guesses.

After all, a civilization like the Spirit Race doesn't have any system, how could Xu Yi have it?

"Xu Yi, this ice arrow feels quite reliable. I don't think we need to test the beast to try it, we can just use it. This secret technique is still a little different from the previous two. After Lu Ke listened to the cultivation steps of the secret technique, he said excitedly.

"Well, I'm about to show you that. Xu Yi said, and then activated the secret technique - ice arrows.

The moment he used the secret technique, a cold air appeared in front of Xu Yi, a bit like the feeling when using ice. However, the temperature drop is not as strong as when ice is used, and the temperature is not as low.

Then, the cold air was rapidly condensing into ice arrows.

It is estimated that there are hundreds of ice arrows, and ice arrows are thicker than the bows and arrows used by humans.

After condensing the ice arrow, it shot out in an instant.

There is really a feeling of ten thousand arrows firing at once, and the heavy cold air is until the ice arrow is fired, and the process is estimated to be less than 5 seconds.

Suffice it to say, the speed is very fast.

Then they saw the rows of trees in front of them being blown to pieces.

When an ice arrow hits a target, it explodes and destroys the target.

"It's called an ice arrow, how do I feel like a rocket for our humans?" Lu Ke looked at the clearing that appeared in front of him, and his eyes widened.

The power of the ice arrows made Lu Ke feel very big.

"It's really like that!" Xu Yi couldn't help grinning, this power and effect are really good.

As Lu Ke said, it feels like a rocket.

Moreover, the explosion of ice arrows is much more powerful than that of rockets. In addition, the power of the explosion is relatively concentrated, and it will not spread very strongly.

A hundred ice arrows exploded, but none of them formed a powerful shockwave.

However, all the targets that were concentrated were destroyed.

"I'm such a genius that I have comprehended such a powerful secret technique. Xu Yi said very shamelessly, after all, he couldn't say that something was given by the system.

Exposing the system doesn't do him any good.

Perhaps, it will also bring him a fatal crisis.

Xu Yi is a genius, which Lu Ke absolutely agrees with.

Otherwise, where did those martial arts, exercises, and current secret techniques come from?

"I want to see right now what kind of effect it would be to use this secret technique of firing ice arrows against fierce beasts. Xu Yi, how much spiritual power did you use just now?" Lu Ke said with great anticipation.

Because it's not dark yet, and even if it's dark, it won't affect them at all.

Spiritual vision, Xu Yi has already handed it over to Lu Ke.

So now, day and night don't make much difference to them.

Or keep the sunrise and sunset, just want to maintain some human instincts and habits.

"Less than two percent. "Xu Yi's control of the secret technique is also becoming more and more accurate, so the spiritual power he uses is becoming less and less.

"So, let's go find a fierce beast and try it, shall we?" Lu Ke felt that this Ice Arrow Volley might be the most practical of the three now.