The two demon spirits, Lin Feng both planned to absorb them today.

Let Nightmare absorb the 'Stand-in' soul skill first, improve Nightmare's strength, and then let Arowana absorb 'Fat Hedgehog'.

Thinking of this, Lin Feng did not hesitate, and directly slapped the stand-in spirit in his hand into the sea of souls.

The nightmare floated quietly in the sea of souls, surrounded by red light, bloody pupils that swirled like a whirlpool, silently watching the stand-in elves who entered the sea of souls.

The Arowana in the same soul sea also noticed the strange visitor, it hid in the corner of the soul sea as usual, compared to the beginning of the trembling, now it is much calmer.

Although he was still afraid of nightmares, two years of nightmarish torture made Arowana gradually get used to the breath of nightmares.

"Huh?"

The refining process went smoothly and without encountering any obstacles.

Smoothly came to Lin Feng's surprise.

In the face of the nightmare, the stand-in elf, like the six-winged phantom python before, was terrified and trembled. The whole process of devouring did not have much resistance, as if it was directly suppressed.

In just three minutes, the stand-in elf vanished.

After eating and drinking, the nightmare returned to the center of the soul sea and quieted down, and there was no change in his body.

"It's worthy of being a demon spirit transformed into a demigod, it's really powerful."

Lin Feng's eyes flashed with a hint of amazement.

The demon master has just absorbed the soul technique, and sometimes he is not sure whether he has successfully absorbed it, and he needs to be possessed by the demon spirit to finally decide.

After that, with the familiarity with the soul technique, the soul skill can be quickly released.

For the Demon Master, if there is no Demon Possession, he can also use the Soul Technique.

However, it can only exert half of the power of the soul technique, and even the spirit king can only exert sixty or seventy percent of his ability.

Extraordinarily strong people can exert about 80% of the power of soul skills.

At this time, Lin Feng did not have a demon spirit possession.

Even so, he was sure that the stand-in soul technique had been successfully absorbed.

He can be released at will.

This feeling, like breathing and blinking, has become an instinct of the body.

This is because of assimilation.

The assimilation of blood allows Lin Feng to directly release the "stand-in" even if he is not possessed by nightmares, and the power will not be weakened in the slightest, and the effect of the soul skill can be perfectly exerted.

"Nightmare's strength has become much stronger, and the speed at which he absorbs soul skills has also become faster!"

Compared to the last time he devoured the six-winged phantom python, this time the speed of devouring the stand-in elf was much faster.

As a spatial attribute soul skill, absorbing the soul skill of the stand-in spirit is far more difficult than that of the six-winged phantom python, but the speed is faster.

This also proves that the Nightmare has become stronger.

For the demon spirit master, the natal demon spirit has the fastest growth rate in the early stage, that is, before the sixth grade.

Some geniuses, such as Ye Qiu and Yun Kai, in just two years, the natal demon spirit has grown to the fifth grade.

However, if the natal demon spirits want to break through the six grades, even with their talents, it will take more than a year.

And after reaching the seventh grade, the difficulty and time spent on breaking through are several times greater.

When refining the six-winged phantom python, the nightmare had just reached the fifth grade, and after devouring the stand-in elves, Lin Feng felt that the nightmare was not far from the sixth grade.

And the time span in between is only half a month.

Such a fast growth rate is a good thing for other demon spirit masters, but it is a disaster for Lin Feng.

Moreover, this was already Lin Feng's conscious control over the amount of soul power absorbed by the nightmare.

In order to make the dragon fish grow rapidly, not counting soul skills, Lin Feng smashed five or six hundred million resources.

He is rich in Arowana, and Nightmare is poor, only to ensure that Nightmare can be fed, and don't even think about anything else.

Even so, the growth rate of the Nightmare is far faster than that of the Arowana, and whether it absorbs the soul skill or not, it does not have much impact on the growth rate of the Nightmare.

If there is no moderation to make the nightmare eat too much, I am afraid that this evil spirit has already broken through the seventh grade.

For soul power, the nightmare never seems to be satisfied, even if it is full now, after two or three hours, it can be quickly digested and continue to eat.

And Lin Feng tried every means to let the Arowana eat more, but the Arowana couldn't do anything.

Lin Feng closed his eyes slightly, his consciousness entered the sea of souls, and carefully observed the changes in the nightmare.

For Lin Feng's observation, the nightmare also seemed to be aware of it, and his breath was slightly restless, but it quickly calmed down.

"Sure enough, wisdom has grown a lot."

This time absorbing the soul technique, the nightmare appeared to be very calm, unexpectedly cooperative, without roaring and roaring, and not even much mood swing.

It didn't even need Lin Feng to control it, and the nightmare began to devour the stand-in elves on its own.

This kind of cooperation did not make Lin Feng happy, but was a little worried.

This is clearly a sign of more wisdom.

At this time, the nightmare, as if hiding in the sea of souls, quietly watched him, silently becoming powerful, until one day, snatching control of his body.

"We have to make He Jun strong as soon as possible, the demon spirit in He Jun's body may be the only hope."

Consciousness returned to the body, Lin Feng said secretly in his heart.

"The Nightmare has now reached the fifth rank, and it will soon be able to break through the sixth rank, which means that it can also absorb two soul skills!"

Lin Feng's eyes flickered slightly.

Nightmare now has absorbed four soul skills.

The first soul skill Demon Flame, the second soul skill Demon Transformation, the third soul skill Transfiguration, and the fourth soul skill stand-in.

The four soul skills are all diamond soul skills, and they belong to different attributes and different types.

Among them, transmogification and stand-ins are god-level soul skills.

This combination of soul skills is unprecedented, it is no longer luxurious, and if it is exposed, it is enough to make the whole world shake.

"Try the effects of soul skills."

Suppressing the uneasiness in his heart, Lin Feng entered a state of demon transformation, a silver-white gauze appeared on his body, and at the position of the left eye socket, nine phoenix-tail-like elegant lines appeared, five of which were silvery-white, and four were colorful, namely: blue, purple, gray, and blue.

These four colors represent the four soul skills absorbed by the Arowana: Mirroring, Phantom Clone, Locking, and Heart Pact.

Lin Feng opened his mouth slightly, and with the release of the doppelganger soul technique, four fist-sized bubbles floated to the four corners of the room.

These four bubbles are not simple bubbles, they are equivalent to Lin Feng's clones.

"Locked."

Lin Feng looked at the location of the four bubbles, and a gray light flashed in his dark eyes, locking the soul technique to release.

The gray light flashed four times, representing the release of four soul locking spells.

Lin Feng looked at the bubble located in the east corner.

In the next second, his figure disappeared in an instant, and the speed was as fast as teleportation.

And where he was originally located, a bubble the size of a fist appeared out of thin air, and Lin Feng appeared out of thin air in the east corner of the room.

"It's very fast, it's worthy of a god-level soul skill."

A smile appeared at the corner of Lin Feng's mouth.

He was very pleased with the newly absorbed double soul technique.

Soon, Lin Feng's figure disappeared again, appearing in the west corner of the room, where it was, a bubble appeared again.

Next, Lin Feng kept appearing in the four corners of the room, like a ghost, shuttling rapidly, and the moment he disappeared, a bubble would always appear.

In this way, he kept changing places, and after a minute, Lin Feng reappeared in the center of the room.

In the four corners of the room, there are still four bubbles floating.

"It's a lot of soul power."

Lin Feng's breathing was a little short.

In just one minute, the soul power had been exhausted, and he was forced to withdraw from the demon transformation state.

The combination of three soul skills, which are released one after another, locked, and substituted, is indeed a great consumption of soul power.

Especially the stand-in soul skill, this god-level soul skill consumes two or three times more soul power than other soul skills.

You know, he just performed it in the room, and the straight-line distance did not exceed five meters.

"I'm now with my own doppelganger, using a stand-in soul technique, so it's easier, if it's on someone else, I'm afraid that the soul power consumed is several times more."

Lin Feng guessed.

God-level soul skills, although powerful, but also consume a lot of soul power.

For people with different strengths, different distances, and the soul power consumed by performing this soul skill is also different, which must be tested experimentally to get an approximate data.

Also, there are restrictions on this soul skill.

If it is cast on the enemy, if the difference in strength between the two sides is too large, that is, the strength of the target is too strong, it is possible to forcibly resist the effect of the soul skill, so that the soul skill will fail to be released.

How big this specific strength gap is, it also needs to be tested to know.

The stand-in soul skill is too rare, and there are very few people who have it, and there is no specific data on this, which requires Lin Feng's own exploration and attempt.

Although the consumption of soul power was very large, the effect made Lin Feng very satisfied.

This is the most important soul skill in the combination soul technique he designed.

With this soul skill, this combined soul skill can be formed.

"I finally don't have to bomb myself with a suicide bomb at every turn."

Lin Feng muttered to himself.

Absorbing the "stand-in", his attack methods have become more diverse, and he does not have to face strong enemies like before, he can only use suicide explosions, killing 80 enemies and inflicting 100 self-losses. Then, with your own stronger defense, you can defeat your opponent.

This way of fighting, although it makes the enemy jealous and afraid, is a helpless move.

This is a minor injury in exchange for a serious injury in the opponent, and a serious injury in exchange for the opponent's death.

The soul power was overdrawn, Lin Feng took out a soul nourishing pill from his pocket, then ate it, sat cross-legged on the ground, and adjusted his state.

Two hours later, Lin Feng opened his eyes and began to absorb the "fat hedgehog".

'Fat Hedgehog' is a water-attribute parasitic soul skill, and in terms of preciousness and difficulty of absorption, it is not as good as a god-level soul skill like a stand-in.

Compared to the nightmare devouring the stand-in elf, this time the devouring process was very difficult and long, and half an hour later, Lin Feng's left eye was like a phoenix's tail, and a fork that was originally silver-white was gradually turning into a dark blue....