As for another secret skill, ice arrows are fired at once, Xu Yi feels that it will be easier if he learns ice first and then learns it.

Soon, they encountered a level 10 beast.

"Lu Ke, you can use the explosive flame, I'll protect you at the side." Xu Yi thought that it would be better to let Lu Ke use the explosive flame first. After all, this secret technique also requires continuous practice before you can gradually master it.

Lu Ke nodded and immediately met the level 10 beast.

This was the first time she used this secret technique. Although she was very careful to control it, the secret technique instantly took away half of her mental power.

The level 10 beast was surrounded by flames before it even launched an attack.

The screams of the ferocious beast were very shrill, and it sounded a little infiltrated.

However, within a few minutes, the screams stopped.

There is also flame that stops together.

The corpses of the ferocious beast disappeared, and there was a ball of ashes left.

Inside the ashes, there was a red thing.

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

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

A level 10 ferocious beast was burned to ashes within a few minutes?

Although such a secret technique is powerful and has a superb effect, the corpses of the ferocious beast are burned out.

The flesh of ferocious beasts is the source of food for them.

If they don't eat meat, they will not be able to intake enough energy.

Therefore, Lu Ke and Xu Yi both think this secret technique that directly burns the ferocious beasts to ashes is not a good secret technique.

This secret technique can only be used when fighting quickly.

After all, compared with martial arts, this effect is very direct. The ferocious beast will be burned to ashes within a few minutes. People who use secret techniques will not show any signs of injury.

Moreover, Lu Ke felt that it was not necessary to have half of his mental power. Controlling 30% to 40% of his mental power was enough to burn a ferocious beast of the same level.

Those who are one level higher than their own strength should use 50% or 60% of their mental power, and they should be able to burn it to ashes.

"Restore mental power, we will continue to look for ferocious beasts later and try the secret technique of ice." Xu Yi and Lu Ke said, and then used their mental power to control the still red brain crystal to fly into the sky.

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

The flame is originally burning. Therefore, Xu Yi was quite satisfied with this result.

If this is used to deal with other civilizations, it is a very practical and powerful attack method.

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

Although they are all meat, they have their own civilization like humans. Even if they look so strange, Xu Yi feels it is impossible to eat it.

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

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

Xu Yi felt that he could not accept it as the food of another civilization.

However, you have to have enough strength.

If the ferocious beast has an idea, it would probably choose to kill all humans as soon as possible and let them disappear completely.

Unfortunately, although there are ferocious beasts on this planet that are completely stronger than humans, they have not discovered that humans have begun to invade their planet.

To all the ferocious beasts of Linglan Star, humans are invaders.

Xu Yi also acknowledged this, and other humans also acknowledged it.

However, for their own survival, they could only attack the ferocious beasts.

If you don’t take action, you will be eaten by ferocious beasts and will become extinct.

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

The lowest requirement of any kind of creature, any kind of civilization is survival.

In order to survive and to sustain life, one species does not care about the ideas of other species at all.

This is not only applicable to humans, but also to other civilizations.

"Xu Yi, I'm recovering." After five hours, Lu Ke's mental power had been completely restored.

When engaging in the territory of a level 10 ferocious beast, you must ensure that you have sufficient mental power.

Otherwise, it would be very troublesome if you encounter a group of ferocious beasts.

Xu Yi and Lu Ke have encountered three ferocious beasts together. They fought, but both of them were seriously injured.

If Xu Yi hadn't taken out the primary body quick-acting recovery potion, they might have taken one or two days to recover from their injuries.

Therefore, Xu Yi and Lu Ke’s explosive flame can be used to deal with multiple ferocious beasts.

The secret technique can actually be regarded as a group attack.

"Okay, let's continue to look for level 10 beasts, and then see the effect of ice." Xu Yi and Lu Ke said, and then began to move forward.

The burning brain crystal before had been put away by Xu Yi. The brain crystal inside was not losing much, and it was estimated that there was 90% of the mental power left.

Such brain crystals are considered to be relatively high-quality brain crystals.

Unfortunately, when it was dark, neither of them encountered a level 10 beast.

Then, the two of them found a place to set up a tent.

Then, Xu Yi walked around the neighborhood.

Now, Xu Yi has started to restore the recording of plants again.

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

It is not enough to rely on him alone, so a large department specializing in plant research is needed, and a small department specializing in formula research, as well as a department producing pharmaceuticals.

Now, this pharmaceutical department is being formed, and people who are interested in plants are gradually joining the pharmaceutical department's team.

In the future, many potions will flow out of this pharmaceutical department, helping countless divine masters and mages to improve their strength.

The formulas of those potions are all primary, and Xu Yi now needs intermediate and advanced potions.

Although it has not been obtained yet, Xu Yi knew that the system must have it, it was just a matter of time.

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

After understanding the medicinal properties of plants and their habits, they can find corresponding plants and develop potions with the same effect to help humans improve their strength once they get the formula.

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

The tragedy on the Earth Star will never happen again.

Humans can have a way out, but it is impossible for them to have a way out every time.

With enough strength and enough technology, even if the sun explodes, humans have the ability to protect themselves.

Even an artificial sun can be built to maintain the need for survival.

Therefore, this potion has an extremely powerful effect on humans.

It has no meaning to hide this knowledge.

Xu Yi's own energy is limited, and it is impossible for him to spend a lot of energy to study these things while practicing. What he can do is to analyze some of the plants he encountered, then record their information and send it to the people in the pharmaceutical department.

Xu Yi took a walk around and saw two brand new plants, and recorded it.

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

After dinner, the two of them discussed their experience and guesses about using the secret technique Burning Flame, and then went to practice together.

The next morning, Xu Yi and Lu Ke finished their practice early.

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

Less than an hour after setting off, the two met a ferocious beast.

So Xu Yi took action decisively.

Xu Yi used the secret book Ice Cang, and when he was using it, Lu Ke felt the temperature around him drop sharply.

A cloud of cold air rushed directly to the ferocious beast that was flying down, and instantly frozen it.

When the cold air hit the ferocious beast, it turned into a huge ice cube, probably weighing several tons, and directly hit the ground from the air, smashing the ground into a pit.

However, the ice did not break or even cracked at all.

"This ice seal is quite powerful. I only used 20% of my mental power to turn it into ice cubes and it froze to death." Xu Yi pushed it back after sensing it with his mental power.

Cold, too cold.

He felt that the temperature of the ice was probably about minus 100 degrees.

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

Being frozen to death shows how powerful this secret skill is.
To be continued...