'Blue Demon Grass' can promote the cultivation of demon cultivators, just like the demand of human cultivators for spirit grass, it is something that all demon beasts are eager for.

In ancient times, in the spirit realm sandwiched between the fairy world and the human world, some high-level cultivators would usually cultivate a large area of 'Blue Demon Grass' in order to obtain the demon pill, use the Three Talents Gathering Spirit Technique to increase its year to hundreds of years, and then transplant it to the forest with a strong demonic aura, and use it to lure the big demon to come and snatch it.

After the big demons fight each other, they will be eliminated and the demon pills in their bodies will be captured.

Therefore, this grass is named in the spirit world - "demon hunting grass", for this reason, in the spirit world, there are often disasters in which the demon race unites to declare war on the human race, and after the killing, it eventually evolves into a demon disaster.

After the demon disaster, a large number of living beings will be slaughtered in a short period of time, resulting in an imbalance in the transformation of the six realms, and a large number of ghosts will be stranded in the spirit world, which will lead to a large-scale ghost disaster.

The intertwining of the ghost plague and the demon plague will give birth to many mutated monsters, which will eventually attract the ancient demons of the outer heavens and evolve into a demonic disaster.

These demons and monsters will become more and more powerful when they devour each other, and after they reach a certain level, they will be repelled by the power of space, prompting them to fly to the higher level realm where they are located, and when the demon disaster disappears, the spirit world can gradually regain its vitality.

In the course of each demonic disaster, the entire spiritual realm will be ransacked, and it will take thousands of years to gradually return to normalcy. And the demons and monsters that are transported to the higher realm will break through the spatial boundaries and enter the immortal realm, triggering a war of immortals and demons.

Due to the wanton actions of the spiritual monks, this kind of calamity occurred frequently, causing the spiritual world to wither, the living beings almost to disappear, and the desolate immortal world was also turbulent. In the end, the heavenly court came forward to descend the immortal soul and set a rule in the spirit world, prohibiting the Terran monks from using the "demon trapping grass" to hunt the big demon, and since then the demon disaster has been controlled and has not appeared frequently.

The situation in the human realm is different, because the aura in this realm is very unstable, and the number of great demons is also fluctuating. Normally, the Dao magic tools developed by the human race using their ingenuity can effectively suppress the demon race.

However, if the aura in the human world is exhausted, the number of monks in the human sect is insufficient, and the Dao magic tools cannot restrain the invasion of the demon race, there will be a demon disaster, which will then lead to a demon disaster.

This is a small amount of tribulation in the world, a kind of small reincarnation that often occurs in the three thousand worlds of the flood and famine.

At this time, it coincided with a large number of tribulations in the entire Flood World, and the Three Thousand Worlds of the Flood Wilderness had entered an extremely turbulent period.

Therefore, a large number of immortals were killed by the ancient demons, and the immortal souls fell to all parts of the three thousand worlds.

Back to the matter of "Blue Demon Grass". In the immortal world, Gu Changsheng had specialized in studying this demon grass. He was in the Heavenly Machine Mansion of the Heavenly Court, and he saw the records of the ancient spirit realm about the demon calamity, which contained a detailed description of this demon grass.

This kind of demon grass that exudes white gas, although there are more than a dozen unfolded round leaves as soon as it appears, but every hundred years, one of the round leaves will gradually split into a purple flower with five petals, and the flowering process will last for a month, and at the same time exude a fishy smell.

This smell is unbearable for humans, but for most of the monster beasts in the forest and ocean, it is full of incomparably temptation.

As long as they smell this smell, the demons within a certain range will come to them and immediately rush to devour it.

Moreover, the older the age of this "Blue Demon Grass", the greater the range of its flavor will be, and the temptation to high-level demon beasts will be stronger.

At that time, the spiritual realm monk had a flash of inspiration, and thought of the miraculous effect of guarding the plant and waiting for the rabbit after the spirit gathering array and this demon grass were skillfully coordinated.

Gu Changsheng was very curious about whether this demon grass was as terrifying as rumored, so he started experimenting in his cave mansion when he had nothing to do.

Sure enough, after dripping the green liquor, it quickly cultivated a thousand-year-old 'Blue Demon Grass', and then transplanted it to the place where the demonic aura of the Giant Demon Forest was strong, and it only took two or three days for the leaves to split and bloom.

And in the process of flowering, it also exudes a strange smell, which is extremely fishy, and ordinary people will feel nauseous and dizzy when they smell it.

But the fruit of this demon grass is not fishy, but has a faint strange fragrance, and the taste is impressive.

Gu Changsheng sealed the flowering demon grass in the large array, and then put the two dragon leopards into the large array, and as a result, the two demon beasts immediately jumped up excitedly, and without hesitation, they gnawed a few green demon grasses that emitted a strange smell.

Then the smell was gone, and the two dragon leopards immediately returned to normal.

Gu Changsheng patiently observed the changes of the two dragon leopards, and found that they had changed from a fourth-level demon beast to a fifth-level demon beast after devouring the demon grass for more than ten days, indicating that this kind of flowering demon grass had a great tonic effect on the demon beasts.

In order to test the extreme ability of this demon grass, Gu Changsheng once went deep into the giant demon forest in the wild world, and used the three-talent gathering spirit array to give birth to more than a dozen "blue demon grasses" that were more than 10,000 years old, and used the demon qi to accurately make it bloom thousands of demon flowers.

As a result, he witnessed the riot of tens of thousands of demon armies nearby, and even those famous demon realm powers couldn't resist such a temptation, and ran over with their mouths full of ha, and went crazy and desperately grabbed the demon grass with him.

As a result, this incident caused a great sensation in the fairy world.

It didn't take long for Lao Jun to ask for this method to give birth to the "Blue Demon Grass", and since then, the relationship between the Heavenly Court Immortal Palace and the Demon World has become much more 'harmonious'.

In the human world, ordinary monks want to hunt demons, and what they are most afraid of is to fight in the air or encounter a large group of demons.

It is not uncommon for a high-ranking monk to search for months in the forest or the ocean, and not a single demon has found it.

In the human world, for most monks, the demon pill of low-level demon beasts is useless at all, the fifth-level demon beasts are the best target, and the sixth-level and seventh-level ones will have to risk someone dying.

And the demon beasts above level eight, except for the old monsters in the infancy stage, the monks of other levels all fled from the wind.

Otherwise, it is not to hunt the demon beast, but to take the initiative to feed the demon beast.

There are indeed a lot of monsters in the forest and sea, but as long as they lurk in caves or do not surface, it is difficult to find them!

If it weren't for the fact that a high-level monk could control tens of thousands of miles a day, and had the divine sense to search for underground and underwater supernatural powers, I am afraid that it would be a normal thing to wander for half a year and not be able to meet a suitable big demon.

What's even more terrifying is that most demon beasts have the habit of living in groups, usually a big demon, leading a large group of small demons.

If they get together, a small group of monks can easily be wiped out!

Therefore, it is the most difficult thing to hunt demon beasts to attract demon beasts of the right level and ensure that they will not attract demon tides.

In his previous life, Gu Changsheng had accumulated rich experience in cultivating 'Blue Demon Grass' in the fairy world to engage in experiments to attract demon beasts in the name of Laojun.

At this time, he got this killer weapon in the Hundred Treasure Business Alliance, and he was immediately full of confidence in his journey to kill demons and take pills.

As long as this method is not used on a large scale to kill demons and take pills, it can avoid the situation of joint resistance in the demon world, so that the supply of pills in the pill stage and the Yuan infant stage will not be a problem!

Moreover, after planting the 'Blue Demon Grass' on a large scale, he can also raise demon beasts and build them into super combat power, Jin Wu, the dragon prince, is a general who leads tens of thousands of krakens in the fairy world, and he is very experienced in this regard.