Linfeng planned to absorb the two demon spirits today.
First, let the Incubus absorb the 'Substitute' soul skill to increase its strength. Then, let the Arowana absorb the 'Fat Hedgehog'.
Thinking of this, Linfeng didn't hesitate and sent the Substitute Fairy into his soul sea.
The Incubus quietly floated in the soul sea. Its body was surrounded by a red light. Its bloody eyes were like a whirlpool, silently watching the Substitute Fairy that entered the soul sea.
The Arowana also noticed the unfamiliar guest. As usual, it hid in the corner of the soul sea. Compared to the trembling in the beginning, it was much calmer now.
Although it was still afraid of the Incubus, the two years of nightmarish torture made the Arowana gradually get used to the Incubus's aura.
"Eh?"
The refining process was very smooth, there weren't any obstacles.
It was so smooth that it exceeded Linfeng's expectations.
Facing the Incubus, the Substitute Fairy was like the Six-Winged Illusion Python from before, extremely frightened and trembling.
There wasn't much resistance during the entire devouring process, as if it was suppressed.
In a short three minutes, the Substitute Fairy disappeared.
After eating and drinking its fill, the Incubus returned to the center of the soul sea and calmed down. There weren't any changes to its body.
"Worthy of being a demon spirit transformed from a Demigod, it's indeed powerful."
Linfeng's eyes flashed with a trace of surprise.
When a Demon Spiritualist first absorbs a soul skill, sometimes they can't be sure if the absorption was successful. They need to be possessed by a demon spirit to be sure.
After that, as they familiarize themselves with the soul skill, they can quickly release it.
For a Demon Spiritualist, without a demon spirit possessing their body, they can still use soul skills.
However, they can only display half of the soul skill's power. Even a Spirit King can only display sixty to seventy percent of the soul skill's power.
Transcendents can display around eighty percent of the soul skill's power.
At this moment, Linfeng didn't have a demon spirit possessing his body.
Even so, he was sure that the Substitute Soul Skill was successfully absorbed.
He can release it at will.
This feeling is like breathing and blinking, it has already become an instinct of the body.
This is because of the assimilation.
The assimilation of blood allowed Linfeng to release a 'Substitute' even without the Incubus possessing his body. Furthermore, the power wouldn't be reduced in the slightest, allowing him to perfectly display the soul skill's effect.
"The Incubus's strength has increased by a lot. The speed of absorbing soul skills has also increased!"
Compared to devouring the Six-Winged Fantasy Python last time, the speed of devouring the substitute sprite was much faster this time.
As a space-type soul skill, absorbing the substitute fairy's soul skill was much more difficult than absorbing the Six-Winged Illusion Python's soul skill.
This proved that the King of Nightmares had become stronger.
For a Demon Spiritualist, the growth rate of a Natal Demon Spirit is the fastest in the early stages, which is before the 6th grade.
Some geniuses, such as Ye Qiu and Yunkai, managed to grow their Natal Demon Spirits to Grade 5 in just two years.
However, for their Natal Demon Spirit to break through to Grade 6, even with their talent, it would still take them more than a year.
After reaching Level Seven, the difficulty and time needed to break through would increase by several times.
When he refined the Six-Winged Fantasy Python, the Nightmare Lord had just reached the Fifth Stage. After devouring the substitute fairy, Linfeng felt that the Nightmare Lord was not far from the Sixth Stage.
And the span of time in between was only half a month.
Such a fast growth speed is a good thing for other Demon Spiritualists. However, it's a disaster for Linfeng.
Furthermore, Linfeng was already consciously controlling the amount of soul power that the Nightmare Lord absorbed.
In order to let the Arowana grow faster, not including soul skills, Linfeng had spent five to six hundred million in resources.
He raised the Arowana with a lot of resources, while the King of Nightmares was raised with a lot of resources. He only ensured that the King of Nightmares could eat its fill.
Even so, the King of Nightmares' growth speed was much faster than the Arowana. Furthermore, absorbing soul skills or not didn't have much of an effect on the King of Nightmares' growth speed.
If he didn't control the King of Nightmares and let it eat its fill, it would've probably broken through to Grade 7.
The King of Nightmares seemed to never be satisfied with soul power. Even if it was full now, it would be able to digest it in two to three hours and continue eating.
Linfeng tried everything to make the Arowana eat more, but the Arowana was helpless.
Linfeng slightly closed his eyes and sent his consciousness into his soul sea, carefully observing the changes in the King of Nightmares.
The King of Nightmares seemed to have noticed Linfeng's observation. Its aura was slightly restless, but it quickly calmed down.
"Indeed, its intelligence has grown a lot."
This time, the King of Nightmares seemed to be very calm after absorbing the soul skills. It was unexpectedly cooperative. It didn't roar or roar, and it didn't even have much emotional fluctuation.
Even without Linfeng's control, the King of Nightmares began to devour the substitute spirit.
This cooperation didn't make Linfeng happy. Instead, he was a little worried.
This was obviously a sign of greater intelligence.
At this moment, the King of Nightmares seemed to be hiding in his soul sea, quietly watching him. It was silently growing stronger until the day it snatched control of the body.
"I have to make He Jun stronger as soon as possible. The demon spirit in He Jun's body might be the only hope."
His consciousness returned to his body, Linfeng thought to himself.
"The King of Nightmares has reached Grade 5 and will soon break through to Grade 6. In other words, it can absorb two more soul skills!"
Linfeng's eyes flickered slightly.
The King of Nightmares had absorbed four soul skills.
The first soul skill was Devil Flame. The second soul skill was Devil Transformation. The third soul skill was Illusion. The fourth soul skill was Substitute.
Four soul skills, all of which were diamond soul skills. Furthermore, they belonged to different elements and types.
Among them, Illusion and Substitute were god-tier soul skills.
This soul skill combination was unprecedented. It could no longer be described as luxurious. If it was exposed, it would be enough to shock the whole world.
"Let's test the effects of these soul skills."
Suppressing the uneasiness in his heart, Linfeng entered the Demon Transformation state. A silver-white gauze robe appeared on his body. Nine phoenix tail-like patterns appeared in the position of his left eye socket. Five of them were silver-white while the other four were multi-colored. They were respectively blue, purple, grey, and green.
These four colors represented the four soul skills that the Arowana had absorbed: Mirror Image, Phantom Doppelganger, Lock on, and Heart Pact.
Linfeng opened his mouth slightly. Following the release of the Doppelganger soul skill, four fist-sized bubbles floated to the four corners of the room.
These four bubbles weren't simple bubbles. They were equivalent to Linfeng's doppelganger.
"Lock on."
Lin Feng looked at where the four bubbles were, and a grey light flashed across his pitch-black eyes as he locked onto them and unleashed his soul skill.
The grey light flashed four times, which meant that he had released the Lock on four times.
Linfeng looked at the bubble in the east corner.
In the next second, his figure disappeared. He was so fast that it was as if he had teleported.
A fist-sized bubble appeared in his original position. Linfeng appeared in the east corner of the room.
"Very fast. It's worthy of being a god-tier soul skill."
A faint smile appeared on Lin Feng's face.
He was very satisfied with the Doppelganger soul skill that he had just absorbed.
Soon, Linfeng's figure disappeared again and appeared in the west corner of the room. Another bubble appeared in his original position.
Following that, Linfeng appeared in the four corners of the room. He was like a ghost as he shuttled back and forth. In the instant that he disappeared, another bubble would appear.
Just like that, Linfeng appeared in the middle of the room again after a minute.
There were still four bubbles floating in the four corners of the room.
"It consumed a lot of soul power."
Linfeng's breathing was a little rapid.
In just a minute, his soul power was exhausted and he was forced to exit the Demon Transformation state.
Consecutively releasing the Doppelganger, Lock on, and Doppelganger soul skills consumed a lot of soul power.
Especially the Doppelganger soul skill. This god-tier soul skill consumed two to three times more soul power than other soul skills.
One had to know that he had only used it in the room. The distance in a straight line was not more than five meters.
"I'm using the Doppelganger soul skill with my doppelganger now, so it's easier. If I were to use it on someone else, I'm afraid the soul power consumption would be several times more."
Linfeng guessed.
Although god-tier soul skills were powerful, they consumed a lot of soul power.
Using this soul skill on people of different strengths and at different distances would consume different amounts of soul power. This had to be tested before he could get a rough estimate.
Furthermore, this soul skill also had a limit.
If it was used on an enemy, if the difference in strength between the two parties was too great, the enemy could forcibly resist the effect of the soul skill and cause the soul skill to fail.
The specific difference in strength would have to be tested before he could know.
The Doppelganger soul skill was too rare. There were very few people who had this soul skill. There was no specific data in this area, so Linfeng had to explore and try it out himself.
Although the soul power consumption was huge, Linfeng was very satisfied with the effect.
This was the most important soul skill in the combination soul skill that he had designed.
With this soul skill, the combination soul skill could be formed.
"Finally, I don't have to use a suicide explosion so often."
Linfeng muttered to himself.
After absorbing the "Doppelganger", his attacking methods had become more varied. He was no longer like before, where he could only use a suicide explosion against a strong enemy, killing eighty of the enemy and sacrificing a hundred of his own.
Then, he relied on his stronger defense to defeat his opponent.
Although this kind of fighting method made the enemy wary and fearful, it was a helpless move.
This was using light injuries to exchange for heavy injuries to the opponent, and heavy injuries for the opponent's death.
Overdrawing his soul power, Linfeng took out a Soul Nourishing Pill from his pocket and ate it. He sat cross-legged on the ground and adjusted his state.
Two hours later, Linfeng opened his eyes and began to absorb the "Fat Hedgehog".
The "Fat Hedgehog" was a water-type parasitic soul skill. In terms of preciousness and difficulty to absorb, it was not as good as a god-tier soul skill like the Doppelganger.
Compared to the Nightmare Lord's Doppelganger, the process this time was very difficult and long. Half an hour later, Linfeng's phoenix tail-like pattern in his left eye, which was originally silver-white, gradually turned dark blue …