Lin Yi's comprehension ability, of course, needless to say, Lin Yi can comprehend 90% of the exercises that others can't comprehend in a lifetime.

This is Lin Yi's talent, and it is also the experience of Lin Yi's two lifetimes of cultivation.

Constantly tempering the sword qi, and constantly gathering spiritual power, Lin Yi embarked on a correct path, getting closer to the essence of Wanying sword qi.

It took only a few days for Lin Yi to completely control it. The spiritual power he released, after being blessed by the magic sword, turned into phantoms. Every phantom was black. Almost like a silhouette.

These phantoms are constantly floating in mid-air, like ghosts, very strange.

"interesting!"

Lin Yi continued to practice and swung his sword continuously. With every blow, Lin Yi tried his best, and then used all the power of blessing through the magic sword.

This kind of skill requires the use of a sword, known as Wanying Sword Qi, and it is a unique sword technique.

The black phantoms continued to grow, and as Lin Yi became more proficient, the number of these phantoms also increased.

At first, there was only one, then there were two, three, ten...

When the number of phantoms reached more than a dozen, Lin Yi did not continue to increase the number of phantoms, but continued to strengthen the power of these phantoms according to the secrets of the exercises.

This is another, extremely complicated step.

After Lin Yi realized it, he practiced for seven days and seven nights without any rest.

Finally, on this day, Lin Yi practiced, and all his sword energy burst out from the magic sword, as if an endless supply of energy was continuously injected into the phantom.

The phantom changed from black to a cloud of mist, and gradually emerged from the mist.

At this time, the phantom is no longer a mass of blackness, or a mass of fog, but has become individual figures.

These figures are slightly blurred, as if they were created out of thin air, with a faint light shining through them.

What's even more weird is that these figures are exactly the same as Lin Yi, like Lin Yi's clone.

"Haha..." Lin Yi laughed loudly. These phantoms were all holding sword aura, and each phantom was a piece of sword aura, forming a perfect coordination.

And this is also the essence of Wanying Sword Qi.

"It's feasible, it's feasible!" Lin Yi continued to swing his sword, using his spiritual power and sword energy to condense new phantoms one after another. Each phantom was like Lin Yi's clone. Xu Ying is also attacking with his sword.

Moreover, because the phantom is transformed by power, its speed is lighter and faster than Lin Yi's body, but its attack power is still extremely fierce.

At least, practitioners under Lingzun might not even be able to defeat any phantom.

Lin Yi's retreat had more and more obvious results, and more and more phantom sword qi was formed. After a month, it finally reached a hundred.

Hundreds of phantoms were dispatched at the same time, and merged with Lin Yi's attack.

Once these phantoms are combined, they are much more powerful than ordinary sword qi.

What's even more frightening is that after proficiency, Lin Yi can use his own power to detonate these phantom sword qi at any time, achieving an instant terrifying explosion.

This explosion may be unbearable even for a strong middle-level spiritual master.

After all, the already powerful Ten Thousand Shadows Sword Qi, combined with Lin Yi's No. 1 Magic Sword in the World, has amplified its power again.

"Boom..."

In the space, Lin Yi's body is full of his phantoms, and every phantom is a sword energy.

Lin Yi's arousal caused terrifying waves, and those phantoms exploded one after another, forming an astonishing destructive force.

The surrounding space even twisted and fluctuated, spreading outward continuously.

If the space on the tenth floor of the Jiuxiang Building was not strong enough, Lin Yi might have directly destroyed this toss.

The power of the Ten Thousand Shadows Sword Qi is indeed formidable. It is even stronger than Lin Yi's previous cultivation of the Dragon Elephant Technique. No wonder, so many strong people back then wanted to obtain the Ten Thousand Shadows Sword Qi.

The power of the phantom sword qi explosion lasted for a while before calming down.

Lin Yi breathed a sigh of relief and put away the magic sword.

Now, Lin Yi has practiced the first layer of the Ten Thousand Shadows Sword Qi, which is the Hundred Shadows Sword Qi.

The second layer is the Thousand Shadows Sword Qi, and the third layer is the most powerful Ten Thousand Shadows Sword Qi.

Although it was only the first level, the power of this exercise was already extraordinary, which surprised Lin Yi very much.

It can be said that his biggest gain from attacking the Heavenly Prison this time is this almost lost technique.

"When I break through to a high-level cultivation base, I should be able to practice Qianying Sword Qi!" Lin Yi smiled faintly and said to himself.

It seems that what Lin Yi has to do next is to find a way to break through the realm of the Great Spirit Venerable.

This is not easy for Lin Yi now.

Because before, Lin Yi raised his level fast because he got the red spirit tree in that space. With the support of these spirit trees, Lin Yi can practice endlessly with a sky-high efficiency.

And in the battle of the palace and prison, Lin Yi released all the army of phantoms, causing the rapid consumption of the spirit trees in the space. Now, there are not many of them, and it is useless for Lin Yi's improvement.

Not to mention, the red spirit tree is not the first choice for spiritual masters to practice at all, because the spiritual power provided is too weak.

If a strong spirit master wants to practice fast and break through, then there is only one choice, and that is the golden spirit tree.

Only the golden spirit tree can provide enough spiritual energy for the strong spirit master to change the dantian.

There are very few strong spiritual masters, and those who can reach a large or even a heavenly rank are even rarer. A large part of the reason is that golden spiritual trees are too rare, and they are hard to come by.

Only the devil emperor in the palace is qualified to use a large number of golden spiritual trees for cultivation, which is incomparable to other practitioners.

Lin Yi put away the magic sword and prepared to leave this space.

Suddenly, when he walked to the exit, Lin Yi seemed to have suddenly remembered something, and was stunned.

Lin Yi stood there, motionless, and suddenly thought of something in his mind.

That is, the Ten Thousand Shadows Sword Qi that Lin Yi is cultivating now seems to have been seen somewhere!

Lin Yi was shocked by this sense of familiarity.

"By the way, during the Battle of the Imperial Palace, someone once used the Ten Thousand Shadows Sword Qi!" Lin Yi woke up suddenly, and thought of who this person was, "Leader, Tianni!"

Lin Yi's face changed suddenly.

No wonder, when he practiced the Ten Thousand Shadows Sword Qi just now, he felt a little familiar.

At this time, Lin Yi finally remembered that during the battle in the palace, Tianni and the prince fought, and the skills they used were almost exactly the same as Wanying Sword Qi. At that time, Tianni also released hundreds of phantom sword qi.