This kind of practice lasted for several days.

In this stone Taichung in the underground cave, the surging wind wrapped around Lu Yang and even formed a tornado, trying to erode Lu Yang in a shocking posture.

But the young man in it just sat upright, like an indestructible rock, looking at the cold wind as if nothing had happened.

Sizzle...

Suddenly, a little golden light came out from Lu Yang's body, and a translucent film was formed vaguely.

And his eyes suddenly opened: Unbreakable body, second level!

boom!

As Lu Yang's body shook, the tornado that wrapped it in it exploded and disappeared on the spot.

The impact fluctuations formed hit the surrounding shields fiercely, and the transparent spiritual element layer trembled slightly, and it exploded and disappeared on the spot.

Huh!

The strong wind that had lost the restriction immediately roared in the underground space. The wind dragon that had originally formed outside the restriction was also shattered and shattered by this powerful force.

Then the strong wind blew around, like a group of mad dogs who had just rushed out of the cage, running around to find the exit.

Lu Yang also looked up at the passages above. He knew that only a few Yin Yuans would gush out from the cracks and form a bad wind outside, while most would dissipate in this crypt.

As for the Yin Yuan evil winds that are filled with the Black Wind Stream, it will completely dissipate in only one more month.

Lu Yang retracted his gaze and glanced around, and soon found that a gray-black translucent flame was floating not far away, which was about the size of two fingers.

When he walked forward, Lu Yang discovered that the strange black fire did not emit the high temperature of ordinary flames, but exuded a strange yin and cold meaning.

Lu Yang grinned at the corner of his lips and showed a satisfied smile.

At this time, golden light surged on his shoulders, and Yue Xun ran out again: "Boss, is this the treasure that exists underground?"

Lu Yang nodded: "The Yin Yuan underground, including the Yin Yuan Sha Feng in Heifengjian, and the Yin Yuan stone mine produced here, are all made by this thing."

Yue Xun's eyes showed a look of surprise: "What the hell is this? It's so powerful?"

Lu Yang replied: "This is a Yin Fire!"

"What is Yin Fire?" Yue Xun asked.

Lu Yang replied: "Yin Fire is a kind of spiritual fire naturally formed by the spiritual essence of heaven and earth, which is the so-called spiritual fire of heaven and earth."

Yue Xun's eyes flashed. He remembered that Lu Yang told him that spiritual fire was divided into three levels, and this spiritual fire in the world was the highest!

"The flower in front of us should be the 'Three Yin Earth Fire'." Lu Yang said again at this time.

"What is Sanyin Earth Fire...?" Yue Xun asked again.

"There are several types of yin-attributed spiritual fires. These three Yin Earth Fires are the lowest-level ones. Among the 36 types of heaven, earth and earth spirit fires on the Lingyan List, there are 31 Earths."

Lu Yang explained in detail.

Yue Xun seemed a little disappointed in her tone: "The ranking is so low..."

"Even the spiritual flame, which is only thirty-one, is stronger than the fire spirit flame condensed by ordinary practitioners using their skills."

Lu Yang smiled and said, "Don't forget that even the Yin Yuan emitted by the three Yin Earth Fire is enough to kill the Spirit Lord." Novel 17

Thinking of the terrifying Yin Feng that Lu Yang used to refine his body just now, Yue Xun's face couldn't help but change.

If he was under those terrible cold winds, he would end up with no bones...

"It's really a pity that the boss was able to use the Yin wind to refine his body."

Lu Yang looked at Lu Yang as if nothing had happened, and he felt very moved.

Now Lu Yang's physical strength is probably enough to resist the spiritual skills of the first-level spiritual master.

Just as Yue Xun was thinking about it, he heard Lu Yang say: "Heaven and Earth Spiritual Flame is an extremely rare thing. This kind of thing will only be naturally generated under very special circumstances. Therefore, even if it ranks 31, it is very rare."

Yue Xunqi said: "Is the spiritual flame of heaven and earth produced naturally? So, this is not only this three Yin earth fire?"

"Yes, the heaven and earth spirit flame is not completely the only one..."

Lu Yang explained: "Although the ranking of the Lingyan List is divided by the power of Lingyan, the greater the power, the rarer the spiritual fire."

Yue Xun nodded. The greater the power, the harder the formation of spiritual flame, which is easy to understand.

Then I heard Lu Yang say: "Generally speaking, spiritual fires that are ranked outside of twenty are relatively common. Most Tiandan-level alchemists have these spiritual fires."

"The spiritual flames between ten and twenty are already very rare, and only a very small number of heavenly alchemists have them. The heavenly alchemists who possess these spirit flames are not grandmaster-level existences without exception." Lu Yang added.

"What about the top ten spiritual flames?" Yue Xun couldn't wait to ask.

Lu Yang smiled and replied: "The top ten spiritual fires are unique in the world. At least as far as I know, the same top ten spiritual fires have not appeared in the world. Cultivators who can possess these spiritual fires are not only the ultimate existence of the way of elixirs, but also their own strength is extraordinary."

After hearing what Lu Yang said, Yue Xun was fascinated by the fact that before he met Lu Yang, he felt that the Linghu Realm was already very strong. Until now, he found that the Linghu Realm seemed to have not even touched the real threshold for cultivation.

"The Vajra Demon-Subduing Sutra I practice is a non-attributed technique, so it cannot condense the fire spirit flame. However, as long as you have these three Yin earth fires, you can still refine the golden elixir."

When Yue Xun was feeling emotion, Lu Yang's voice sounded again.

"But boss," Yue Xun came back to his senses and asked, "The three Yin Earth Fire contains powerful Yin attribute energy. Can it be used to refine alchemy?"

Lu Yang answered: "It is possible to refine most elixirs, but a few elixirs with yang and fire attributes cannot be refined. However, accordingly, there are also some elixirs with yin attributes that can only be refined with yin fire."

Yue Xun nodded suddenly and pretended to understand.

In fact, he has never heard of any yang attribute fire attribute yin attribute elixir.

It's no wonder that he is. In fact, no one in the three realms except Lu Yang has ever heard of it.

"Okay, we should take away the Yin Fire."

As Lu Yang said, he poked his palm out and grabbed the gray-black flame.

Yue Xun looked at this scene nervously, which was Yinhuo that even the Spirit Lord could easily kill!

Hoho...

As Lu Yang's palm approached, the Yin Fire seemed to sense some threat. The fire suddenly jumped up and stretched out a tongue of fire to roll towards Lu Yang.
Chapter completed!