Lao Yu said, and then spoke: "However, everyone knows the method of refining the elixir, but the requirements for the technique are extremely high, and the probability of producing the pill is very low, you practice in the early stage, or try to buy the first-order immortal grass, with your contribution value, you should be able to buy a lot!"

"Wait, the grade division of this fairy grass, although it is related to the variety, but the most important thing seems to be the vintage!"

Gu Feng's eyes swept over these immortal grasses and found that the first-order immortal grasses were basically hundred-year-old, the second-order immortal grasses were all thousand-year-old, and the third-order immortal grasses were ten thousand years old!

"This is nature, any spirit plant, the older the year, the stronger the medicinal effect, even if the most ordinary grass has a hundred thousand years old, it will also become an extremely high-grade spirit grass. But this is very difficult, Lingzhi is actually the same as people, and also has its own longevity, only when it encounters some creation, can it grow for a long time, otherwise it is easy to die halfway!"

The old fish spoke.

"Old fish, how about my birth promotion technique you said about using on these fairy grasses?"

Gu Feng spoke excitedly.

"You mean...... Why didn't the old man think of it, haha, this is a way to get rich!"

The old fish spoke excitedly.

Gu Feng didn't say a word, and quickly selected the spirit grass according to the Danfang that Lao Yu had.

In the end, what Gu Feng selected were all the most ordinary spirit grasses, all of which were spirit grasses with a contribution value of one thousand plants, so Gu Feng bought two hundred plants.

When she left the Treasure Offering Pavilion, Granny Qian was surprised, it was the first time she had seen so many first-order spirit grasses at one time.

Walking out of the Immortal Treasure Monument, Gu Feng thought about it, and pressed the identity token on the task tablet again, and then Gu Feng entered the Task Pavilion again.

"Boy, here's the contribution you get for your mission!"

When Granny Wu saw Gu Feng, she smiled slightly, and directly put 10,000 contribution points into Gu Feng's identity token.

The C-level person that Gu Feng took over before was to let Zhou Yun speak, but now that Gu Feng has done it, this task can be regarded as completed.

After completing this task, Gu Feng wanted to leave, but his eyes fell on a silver task card.

Grade: Class B

Requirements: Capture a nine-time Thunderbolt.

Time: Unlimited.

Reward: 100,000 contribution points.

The demon of the nine thunder tribulations, Gu Feng had it in his hands, but he didn't expect that someone would be willing to use 100,000 contribution points to send this task.

Gu Feng looked at Granny Wu: "Mother-in-law, who sent this task?"

"This task was sent by Elder Ouyang, do you kid want to take it?"

Granny Wu spoke.

Elder Ouyang!

Gu Feng knew that Elder Ouyang, named Ouyang Xue, was also one of the three Keqing elders of the sect, and he had cultivated to the second order of the Immortal Dao.

"Okay, I've taken this task!"

Gu Feng spoke.

This task, for Gu Feng, is not difficult at all, and he earns 100,000 contribution points for nothing, and Gu Feng naturally enjoys it.

"This task is a bit special, Elder Ouyang said, whoever catches this demon can directly take the demon to her in exchange for contribution points!"

Granny Wu spoke.

"Good!"

Gu Feng nodded, no longer hesitated, and then left the Mission Pavilion.

When I returned to my cave, I saw a woman in front of the door.

This woman is none other than Slender Woman!

"Elder Gu!"

With a smile on her face, her face was still a little red when she saw Gu Feng.

"What's the matter with Elder Fair?"

Gu Feng asked.

"That, Elder Gu preached today, I saw that Elder Gu had lost a lot of weight, so I went back and made a pot of soup for Elder Gu!"

As he spoke, Miao Miao took a pot of soup and handed it to Gu Feng.

Gu Feng saw this pot of soup, the light in his eyes flickered, although in the past few days, Gu Feng relied on the operation of the exercises, and recovered some, but the qi and blood consumed by casting Mercury Xingchen before was too large, so it has not completely made up for it, this fairy beast soup is no better for Gu Feng!

"Fair Elder, you've lost a lot of weight lately!"

Gu Feng looked at him and spoke.

"Thanks to the prescription given by Elder Gu!"

I said with a smile.

"This is the prescription for the next period of time, and after it doesn't work, you can ask me for a new prescription!"

Gu Feng smiled and spoke, and wrote a prescription for Miao Miao again.

Then, he took the pot of soup and happily walked into the cave.

Miao looked at Gu Feng's back, and the smile on his face gradually appeared lost, and he couldn't help but say to himself: "Is he exchanging with me?"

Immediately, a flash of resoluteness flashed in my slender eyes, and he turned to leave.

Entering the cave, Gu Feng drank all the pot of soup, and finally felt that his qi and blood had recovered a lot.

Next, it is time to start alchemy.

As for the alchemy qi, Gu Feng was ready to use the birth technique he had realized to give birth to these herbs.

Then, Gu Feng took out an herb and pressed it with his palm: "Birth Technique!"

In the Gu Feng Spirit Sea, the immortal power roared, and then began to turn into the Dao pattern of the years, falling on this herb.

This herb is the most common first-order herb, water blue grass.

And then, the year of this water blue grass began to soar.

One hundred years!

Two hundred years!

Three hundred years!

......

Millennium!

When the year of the water blue grass soars to a thousand years, the year of this herb will no longer grow.

Immediately, it stopped.

The water blue grass, which used to have pale blue leaves, has now turned dark blue.

"This is no longer a water blue grass, but a second-order blue phantom grass"

The old fish is also excited to speak.

"Come again!"

Gu Feng opened his mouth, and on this second-order Blue Illusion Grass, he continued to perform the Birth Cultivation Technique.

However, under the continued use, this blue phantom grass actually began to turn yellow, and eventually withered.

"Water blue grass, just the most ordinary herb, this herb's vitality is limited, it is still possible to reach the second order, but even if it is not disturbed by the outside world, it is difficult to grow into a third-order herb, I am afraid that out of 10,000 water blue grasses, it would be good if one could eventually transform into three herbs, this is normal!"

The old fish spoke.

Gu Feng also saw that it was really too difficult for ordinary first-order herbs to grow into third-order herbs, and his own birth promotion technique only added years to it, but it could not increase its vitality, and such herbs could not support it.

"Wait!"

Gu Feng's eyes lit up, and his palm pressed directly on the withered Blue Illusion Grass: "Atavistic Technique!"

Then I saw that the withered yellow leaves on the blue phantom grass actually began to slowly turn green, and finally returned to their previous appearance.

"Okay old fish, so I will never waste any spirit grass!"

Gu Feng opened his mouth and smiled.

"I didn't expect the immortal art realized by the artistic conception of the years to be so magical! Your two immortal techniques are simply priceless treasures for an alchemist!"

The old fish is also a surprise opening.

What alchemists need most is herbs, high-level herbs, and Gu Feng, because of the birth promotion technique and atavism, these are not problems.