Start invincibility from the attribute panel

【When the rules need to be changed, the system will change them naturally. It is not difficult for the host to upgrade the grade of the Gu worm. Why should the host still worry about this?】

"Why is it not difficult? A tenth-grade Gu worm requires at least five poisonous essences! I don't need one tenth-grade Gu worm, but a group of them!! To form a tenth-grade Gu worm army!!"

Xiao Fan said with great ambition.

【Compared to the cultivation of battle pets, the total consumption of Gu worms to upgrade to the tenth grade may not be as much as the consumption of any battle pet to upgrade one grade. It only requires various essences. The host really doesn't need to worry about it.】

The system, in turn, began to persuade Xiao Fan.

"Where can I absorb so many poisonous essences? If it weren't for the previous Star Beast Hall and Beast Sea Mountain copies, I gained a lot of elemental essences. I don't think I would have gained any poisonous essences later!!"

Xiao Fan complained speechlessly.

[Then has the host ever considered a question, why can Black Mountain Gorge breed so many poisonous insects, and why are the number of poisonous insects in the Poison Lin Cave so high? ]

"Huh?"

Xiao Fan exclaimed.

He really hasn't thought about this question.

To be honest.

After entering Black Mountain Gorge, they pushed forward all the way.

Even when they rested, they rested in the same place.

They didn't explore nearby at all.

As a result, he didn't know if there was anything special in Black Mountain Gorge and Poison Lin Cave.

It's like the cave where the Yin attribute middle-grade spirit vein was discovered in Luoyuan Valley before.

He found a large number of Yin spirit ice pillars containing Yin attribute elements.

Since the growth of poisonous insects depends on toxins.

There is no way that there is no toxin in Black Mountain Gorge and Poison Lin Cave.

Not to mention.

Even if it has not been explored.

In the entire Black Mountain Gorge, looking around, even a leaf, a stone, or even a speck of dust, contains speed.

The same reason.

In the Poison Lin Cave.

The surrounding rock walls cannot be said to be all piled up with various poisonous stones and soils. At least the black layer on the surface also contains a lot of toxins.

"You mean, I can actually extract poisonous elements from any material in the Black Mountain Gorge and the Poison Lin Cave and condense the poisonous essence?"

Xiao Fan's eyes lit up and he asked happily.

[How can it be that simple? Please explore by yourself. If you find something that can extract poisonous elements, this system will naturally remind you]

"You are just listening to your words and listening to your words!"

Xiao Fan rolled his eyes.

The system's reminder is simply farting.

To put it bluntly.

He still has to explore it himself.

However, now is obviously not the right time to explore.

Let's wait until the people are rescued before exploring!

Anyway, there are already ten successfully cultivated Yin Yang Soul Worms, which is barely enough!

Xiao Fan muttered and summoned one of the Yin Yang Soul Worms.

[Congratulations to the host for summoning the Gu worm for the first time. The Yin-Yang Soul Worm's innate magical power, the Netherworld Spirit Fire, is detected. Do you want to extract it?]

"Huh? Can you extract the innate magical power of the Gu worm? Is this the first summon reward, or can you extract it every time you summon a different Gu worm in the future?"

Xiao Fan asked curiously.

[Do you want to extract it?]

Unfortunately, the system deliberately pretended to be dumb this time, and obviously didn't want to explain.

"System, you can't do this! You are serving me, how can you..."

[Are you going to ask for the special code or not? ]

"Extract!"

Why are you rolling your eyes in anxiety?

Do you think you are the class teacher.

If one person delays for one minute, does it mean that the whole class of sixty students have delayed for an hour?

"Shua~"

Just when Xiao Fan was complaining about the system, a cold chill suddenly emerged in Xiao Fan's heart.

He couldn't help but shudder.

This kind of trembling from the depths of the soul was a bit unbearable even for him.

This made him think of the same idea again:

The Netherworld Spiritual Fire can burn the soul of any cultivator. I am also a cultivator with a soul. Will my soul be burned by my own Netherworld Spiritual Fire?

[Funny, no, even if other cultivators who have mastered the Netherworld Spiritual Fire may burn their own souls, the host's Netherworld Spiritual Fire is the one that this system helps to comprehend, and it automatically comes with an immune effect]

"Then will I be immune to the Netherworld Spiritual Fire released by others in the future?"

Xiao Fan's eyes lit up and he asked impatiently.

[You are such a genius... I guess so]

The system obviously did not consider this point, and Xiao Fan took advantage of it.

"System, you are awesome! This is the way to go, you should break the rules like this!! I am optimistic about you!!"

Xiao Fan smiled and praised the system, and immediately began to study his own Netherworld Spiritual Fire happily.

[Spirit Fire: Netherworld Spirit Fire

Level: 1

Note: Because it is extracted from the Yin-Yang Soul Worm, the level increases with the level of the highest Yin-Yang Soul Worm cultivated.

Current Effect: Twinkle, twinkle, do you think I am a star in the sky? (Those who are hit will feel a little bit of soul pain)]

"Is it so rubbish?"

Xiao Fan complained and immediately asked the system to upgrade the level of this Yin-Yang Soul Worm.

Because it is for his own use.

There is no need to materialize the poisonous essence.

At the same time.

It can also be avoided that after the insects eat a highly toxic essence, it will take some time to stabilize before they can continue to eat the second one.

The system's capabilities are powerful.

To increase the level of Yin and Yang soul insects is like Xiao Fan’s attributes meet the requirements and improves his cultivation level.

Quite solid.

Naturally, it can continue to improve.

Even some losses can be avoided.

that's all.

After spending nearly three hundred poison attribute elements.

The level of this Yin-Yang Soul Worm has finally been upgraded to level 10.

Three hundred poison attribute elements, after they have the ready-made toxic essence, are equivalent to thirty yuan.

The reason why it is not Xiao Fan’s expected five pieces can increase the Yin-Yang Soul Worm from level 1 to level 10.

Of course, it is also because of the previous incorrect estimates.

It does not mean that a highly toxic essence can definitely increase the level of the Gu insect by two levels.

The combat power of these tenth-level Gu insects is the same as that of ten first-level Gu insects?

Obviously it is impossible.

The gap between the two is more than a thousand times.

After the Yin-Yang Soul Spirit Worm was promoted to the tenth level, the Netherworld Spirit Fire controlled by Xiao Fan also changed and advanced to the tenth level.

【Spiritual Fire: Netherworld Spiritual Fire

Level: 10

Note: The Lord of the Netherworld must also fear existence

Current effect: If the spiritual attributes do not exceed ten times the host, the soul will be ignited]

"Cowhide!"

The consumption of nearly 300 poison attribute elements gave Xiao Fan such a powerful attack instantly.

This is really beyond Xiao Fan's imagination.

This means.

Even a strong man with 60 million spiritual attributes, that is, 6 stars of Wu Zun, will be ignited in the face of the Netherworld Spirit Fire he released.

Strong, too strong! !