Ye Feng's gaze quickly fell on a plant essence called the Sleeping Flower.

It was a purple flower that looked the size of a palm, but if you stare at it for a long time, it will make you feel dizzy.

According to the information fed back from the Land of Inheritance, the main function of this flower is to increase the strength of spiritual power.

Ever since he had confronted the Skyfall in the forbidden area of Xiaofeng Mountain with his spiritual power, Ye Feng had understood the importance of spiritual power, which was no worse than his physical body.

And after observing the mutant wolf king and those mutant animals with spiritual power for a long time, Ye Feng also understood that he had an incomparably huge advantage in terms of spiritual power.

That is, he can use his life healing ability to quickly recover his mental power.

Therefore, in his plan, whether he can block their attacks at the stage when the seventh-order powerhouses burst out with full strength, the strength of spiritual power is also a crucial part.

These thoughts flashed through his mind, but Ye Feng's movements did not slow down, stretched out the roots of the tree, and lightly touched the purple flower, and the devouring power was activated, absorbing it in an instant.

The next moment, he felt a cool energy rush into his mind.

The strength of his mental strength also began to increase rapidly.

After Ye Feng broke through to the sixth order before, if he didn't calculate the bonus of the Forging God Method, when he exploded with all his strength, his spiritual power would probably be able to lift a 1-ton weight.

When the cultivation of the Forging God Method was completed and his spiritual power structure was optimized, his spiritual power could even lift a weight of 10 tons under the full burst.

As for now after absorbing a sleeping flower, he was surprised to find that his spiritual power had increased by 200 catties in the weight of lifting objects.

"That's so much!" Ye Feng was secretly surprised in his heart, this was equivalent to an increase in the strength of his spiritual power by 1%.

"I just don't know how much the upper limit of mental power can reach." Ye Feng looked at the 120 sleeping flowers in front of him and said expectantly.

Then he quickly devoured the sleeping flowers.

It didn't take long for the 10 sleeping flowers to be absorbed by him, and the strength of the spiritual power was also increased by 10%, and the limit was directly increased to 11 tons using the spiritual power to control the matter.

"It's good, and it can still absorb it." Ye Feng felt his state a little and found that the range of absorption was still very large.

In this case, of course, he would not stop, one by one the sleeping flowers were absorbed, and Ye Feng's spiritual strength was also constantly improving.

Soon the increase reached 20%, 30%... 50%… 90%。

It was only at this time that Ye Feng felt that this sleeping flower's increase in himself was about to reach the upper limit.

Finally, after he devoured 100 sleeping flowers, his mental strength doubled, and if he controlled things, he was completely able to lift a weight of 20 tons.

Of course, when he really fought, Ye Feng would not be stupid and really move objects to attack, but directly use his spiritual power to attack the opponent's mind.

With his current strength of spiritual power, if he used a spiritual impact on a sixth-order mutant creature of the same realm, he could easily make the opponent's seven orifices bleed to death.

However, against the powerhouses of the seventh order, Ye Feng was not sure how effective his spiritual power attack methods would be.

After all, when he fought with Skyfall, the opponent's spiritual power level was suppressed to the peak of the sixth order by the power of heaven and earth, so he didn't know how far the spiritual power level of the seventh-order powerhouse could reach.

"But no matter what, it is impossible for a seventh-order powerhouse to deal with my spiritual power attack too easily. After all, the strength of the seventh-order powerhouses is because they have the power of rules, but this and spiritual power have not undergone a qualitative change. Ye Feng muttered softly to himself.

In other words, the spiritual power used by a seventh-order powerhouse is essentially no different from the sixth-order spiritual power, but it is only more powerful.

And he is confident in his current mental strength.

Ye Feng glanced at the remaining 20 sleeping flowers, thought about it, and finally distributed them to the mutant honey badger.

In this batch of contract animals under his command, only the mutant wolf king and the mutant honey badger have spiritual power.

The strength of the Mutant Wolf King's mental power is higher than that of the Mutant Honey Badger.

However, Ye Feng felt that next, if they went to the core area and fought with the army of the forbidden area, the morale-boosting ability of the mutant honey badger would play a greater role.

This is also the reason why he assigned the sleeping flower to the mutant honey badger.

The flat-headed brother who got the reward was quite excited, in fact, for a long time, it was really a little aggrieved, although it even dared to touch the tiger's buttocks.

But because of its size, it's true that you can't beat a tiger.

Now that it has been rewarded, it immediately barks at the other animals and shows off.

Seeing this scene, Ye Feng couldn't help but feel a little funny, but his attention quickly fell to the last one, which had the potential to improve his strength.

Wood Reishi!

According to the hints given by the Land of Inheritance, after taking this wood reishi, it can enhance the ability of wood attributes.

According to Ye Feng's understanding, it is the ability to enhance the wood attribute.

Does he have a wood-based ability?

Naturally, there is, and the ability to heal life is.

The Wood Lingzhi was huge compared to the two herb essences he had taken before, and this was a Lingzhi with a diameter of one meter.

But it is not brown like ordinary Ganoderma lucidum, but the whole body is turquoise, and even has a green halo twisting on it.

Ye Feng observed it for a while, activated the devouring ability, and suddenly this wood lingzhi seemed to turn into a green liquid, and it was absorbed by Ye Feng in the next moment.

Suddenly, Ye Feng felt that there was a vigorous vitality injected into his body, and this vitality also made his body undergo some unknown changes.

He closed his eyes, sensed it, and then pulled a mutated buffalo and tested it on it.

"This is amazing, the speed of treatment is actually a full tenth faster than before." Ye Feng didn't expect the effect of this wood lingzhi to be so good.

It's just that he looked at the remaining 7 Wood Lingzhi and was relieved.

This thing is so hard to find that the entire animal army has only found 8 of them in two days.

There was nothing to say, Ye Feng quickly devoured them all.

And the ability to heal life has also increased the healing speed by 80% compared to before.

After absorbing all the three herb essences that had an effect on him, Ye Feng took a look at the remaining ones.

Although he wasn't sure if these herb essences were effective for him, in order not to miss them, Ye Feng devoured each one.

After a round of searching, he really found a kind of plant essence, which had a good effect on himself.

Gathering Spirit Grass!

After devouring the Spirit Gathering Grass, Ye Feng could feel that the speed at which he absorbed the spiritual energy between heaven and earth had become much faster.

Although he usually relies on his devouring ability to scavenge the aura from the rest of the plants, it does not mean that the speed at which he absorbs the aura has no effect, and if he encounters some special circumstances, he may be able to come in handy.

After some improvement, Ye Feng was also quite satisfied, especially for the improvement of physical fitness and mental strength, which could directly improve his combat power.

However, due to the limited essence of plants and trees, he has not yet reached the limit, so next, the focus is on looking for thousand-year-old grape fruit, wood lingzhi and juling spirit grass.

In particular, the thousand-year-old grape fruit can improve his physical fitness, and this is the most obvious increase in his combat power.

Of course, in addition to finding these plant essences, helping these animals in the Dragon King Hall to improve their overall strength is also something he has to do.

It's just that Ye Feng felt a little headache when he thought of this.

"Help them break through, it's too expensive!"

If you want to make a mutant animal at the peak of the fifth order break through to the sixth order, you can either take the herb essence equivalent to 10 peaches, or make a fifth-order evolution fruit by yourself.

But no matter what kind of price he paid, Ye Feng felt distressed.

Needless to say, 10 peaches, this is equivalent to 100,000 points of aura, and more importantly, the essence of plants and trees, which cannot be directly compared with aura.

After all, this thing can instantly increase combat power.

But it wasn't easy to ask Ye Feng to make a fifth-order evolution fruit, this thing needed a full 400,000 aura points and bio-energy to make one.

And the number of animal legions in the Dragon King Hall alone exceeded 24,000.

Although it is said that because of its size, not every mutant animal needs to take a whole Evolution Fruit to be able to break through the realm, but the consumption is also massive.

"A fifth-order aura fruit can allow a mutant tiger to break through, so anyone who is about the same size as it must take at least one full evolution fruit." Ye Feng frowned.

For example, mutant elephants, mutated hippos, mutant rhinoceros, mutant buffaloes, mutant lions, mutated cheetahs, mutant black bears, mutant giant pandas, etc., all need to take a complete evolution fruit.

If he wants to save, he can only start with animals such as mutant mice and mutant sparrows.

If you calculate it as a whole, the Animal Legion side will have to come up with at least 16,000 Evolution Fruits to be able to raise all of them to the sixth order.

As for the mutant insects, although the resources consumed are only one-fiftieth of the mutant tigers, the huge number of 200,000 will require at least 4,000 evolution fruits.

If all of them were added up, Ye Feng would have to prepare at least 20,000 Evolution Fruits.

An evolution fruit has 400,000 points of aura, and 20,000 evolution fruits, then it needs 8 billion points of aura.

With such a huge amount of spiritual energy, he couldn't take it out at all for a while.

Although a large number of spirit stones were harvested before, the total number was only about 330,000.

One spirit stone is equal to 10,000 points of spiritual energy, and even if all the spirit stones are converted into spiritual energy, it is only 3.3 billion.

That's not even half the requirement.

"What we can hope for now is to find two more spirit stone veins tonight." Ye Feng sighed.

But even if two spirit stone veins are really found, the possibility of getting together 800,000 points of spiritual energy is not high.

In the end, he could only choose to pick a part, the more powerful mutant animals to let them break through.

For example, mutant tigers, mutant lions, and the like.

"The time left for me is still too short, if the ancient ruins are opened a year and a half later, at that time, I can cultivate the army of the Dragon King Hall by myself with the plant offerings of the entire Dongling Mountain Range." Ye Feng also felt a little helpless.

As soon as he finished speaking, Ye Feng was stunned.

He looked around at the dense woods around him, and his eyes grew brighter.

"That's right! I didn't think of that. ”

"It's all trees, and it's so tall, plus the aura here is 20 times that of the outside world, the aura on these plants should be very sufficient."

This inheritance place is very vast, not to mention anything else, just the middle area, even if you pass through it in a straight line, you have to advance at least 100 kilometers.

Not to mention the width, I don't know how many Dongling Mountains can be compared.

In a way, the aura that can be provided to him here is almost endless.

However, he has a time limit, only one night, and he must speed up the efficiency of harvesting aura.

"But before I can do that, I need to figure out how much aura these trees can give me at a time."

Ye Feng grunted as he stretched out a tree root and gently rested it on a giant tree next to him.

At the same time, the Devouring ability is activated.

Of course, he didn't absorb it too quickly at once, but tried little by little.

On the one hand, he was worried that he would violate the rules of the Land of Inheritance, and if he didn't allow it, he would stop as soon as possible, so as not to be excluded from this world.

The second is that he wants to test the upper limit of the aura that these plants can be extracted.

Generally speaking, on the outside, each tree will draw 2~4 points of aura.

However, the trees in the Land of Inheritance are at least 100 meters high, most of them are two or three hundred meters tall, and the average height is four or five times that of the plants outside.

Coupled with the concentration of aura here in the middle area, it is 20 times that of the outside.

"Then I extract one or two hundred points of aura from each tree, it shouldn't be too much!" Ye Feng muttered in his heart.

And his movements were not slow at all, and he quickly extracted the aura in the body of this big tree.

10 o'clock, 30 o'clock ...... 200 points, 300 points.

It wasn't until Ye Feng extracted this plant, with a full 300 points of aura and bioenergy, that the other party began to wilt.

"It's really possible to extract so much aura." Ye Feng's face showed an incredible look.

Of course, part of the reason why this is so exaggerated is that he is a hurtful extraction, and in two or three days, this big tree will not slow down.

However, Ye Feng didn't plan to gather wool in one place, so it didn't matter.

What's more important is that he didn't perceive this piece of heaven and earth, and the rejection of him means that he should be able to do this.

Ye Feng no longer hesitated, and hundreds of tree roots that could still move were all dispatched, and began to harvest the aura of all plants within 5.1 kilometers with him as the center.

After just 3 minutes, the aura on all the plants had been harvested, and the entire nearby forest seemed to wilt.

At this time, Ye Feng's face was full of joy, he actually harvested 5.16 million points of spiritual energy.

This wave of harvesting is actually more than the aura he harvested for a day outside.

What's more, he only used 100 tree roots just now, as long as he canceled the ability to cast attribute transfer, 600 tree roots acted together, this efficiency could be 6 times faster.

In other words, it only takes 30 seconds for him to harvest a wave of aura.

In this way, theoretically, he can harvest 10 million points of aura in one minute, and 600 million points of aura in one hour.

It only takes 13.3 hours to complete the goal of 8 billion.