Of course, if you want to have the power of a full blow at the Martial Saint level, then at least you have to sacrifice the whole body essence blood of a powerhouse at least the tenth order peak Martial Emperor level in order to be able to create a [Blood Sacrifice] for sacrifice, so as to obtain the power of the Martial Saint level.

At the same time, the secret technique of "Killing God Possession" also has great requirements for the strength of the body, and you must also be able to withstand the impact of more powerful forces infused into your body.

Therefore, at this moment, in the state of opening the body of the Three Transformations, the strength of his physical body was already comparable to that of the tenth-order peak Martial Emperor, and he was already theoretically able to obtain the strength of the eleventh-order Martial Saint-level.

Of course, he also had to prepare the [Blood Sacrifice] of the Tenth Order Peak Martial Emperor level.

Although this "God Killing Possession" secret technique has some limitations, it is also very powerful.

After all, the most important point is that you don't need to sacrifice your own essence blood, after all, other people's essence blood Su Fang can buy it with spirit stones.

After all, the spirit blood of a tenth-order peak martial emperor or an eleventh-order martial saint-level demon beast essence blood is precious, but it is not very rare.

As long as you spend spirit stones, you will definitely be able to buy them.

Moreover, Su Fang, who has the resources and benefits of the true disciples of the Heavenly List, is not very short of spirit stones or points, and when he returns to the Xuanhuang Holy Land, he can directly spend the points to buy them.

At that time, he will be able to use this powerful "God Killing Possession" secret technique without side effects.

And when he thought of the horror of the Netherworld Ghost Killing when he used the secret technique of "Killing God Possession", Su Yi couldn't help but look forward to this secret technique.

After everything is done.

Only then did Su Fang remember the purpose of his trip to find the magic crystal mine, and then he turned around and began to rush to the original place where the magic crystal mine might contain the cliff.

"I don't know if it's really another magic crystal mine there." The Soviet side speculated.

After all, when he first entered the dark cave, he didn't pay too much attention to it, and he didn't carefully look for the traces of the magic crystal mine.

So this time, he plans to go back and look for it.

Soon, Su rushed back to the location of the cliff.

Then he jumped straight down and came to the dark cave.

Su Fang did not hesitate, walked in directly, and began to investigate.

However, after looking around, there was no trace of [Magic Crystal].

"Huh? How so? Could it be that Chen Da and Lin Aotian deceived me, it stands to reason that they shouldn't be? ”

The Soviet side was a little suspicious and said to himself.

From the time he followed that Chen Da, listening to that Chen Da's tone, it stands to reason that there should really be a magic crystal mine here, but after looking around the Su side, he didn't find anything.

"Could it be that the [Demon Crystal] mine is hidden underground?" The Soviet side speculated.

After all, most of the ore veins, including the spirit stone veins, are also buried deep underground.

Thinking of this, the Soviet side began to dig and explore inch by inch of land under their feet.

After looking for a while, suddenly a faint black light appeared in a large pit.

"Huh? Got it? ”

When Su Fang saw the ghostly light, he immediately began to dig deeper.

Then I saw a large number of black [magic crystals] appear in front of me.

"Haha, there is really a [Demon Crystal] mine, it seems that the four demon bodies that have broken through the "Ninth Transformation God and Demon Body" this time, don't worry." Su Fang laughed.

Then, he began to incarnate as a miner and desperately collected it.

It's just that the quality of the [Magic Crystal] mine is not high, but fortunately, the quantity is large, and it is estimated that it is enough to support Su Fang's cultivation.

Therefore, the Su side also planned to dig up all the [magic crystals] here.

In this way, the Su side began to dig little by little, and suddenly became a little curious in his heart......

"I don't know why there is a [Magic Crystal] in this place." Su Fang thought.

It stands to reason that most of the [Demon Crystals] should come from the Demon Realm, and this [Demon Crystal] is still extremely rare in the mortal world.

Most of the Demon Dao cultivators also mostly use some Demon Beast Pills to replace the [Demon Crystal] for cultivating the Demon Dao Exercises.

And there are still very few demon cultivators who purely use [Demon Crystal] to cultivate, mainly because this thing is too rare.

Therefore, Su Fang was curious about why there were small-scale [Magic Crystal] mines in this Dark Descent Mountain Range.

After all, there is no large amount of demonic energy in the Darkspawn Mountain Range, and there are no conditions for the birth of [Magic Crystal] mines.

"Could it be that there are other secrets under this [Magic Crystal] mine?" The Soviet side suddenly thought.

After thinking about it, Su Yi dug more energetically.

In this way, the Su side dug the [Magic Crystal] in this dark cave for three days and three nights, and finally collected some of the [Magic Crystals].

And at this time, under the ground, only the last thin layer of magic crystal wall remained.

Seeing this, the Soviet side did not stop and continued to dig.

"Bang!"

The magic crystal wall was shattered by the Su side, and a powerful demonic qi suddenly burst out.

In a hurry, the Su side also immediately launched the "Heaven Full of Hidden Immortals" to avoid this strange demonic aura.

"Oh? It seems really weird. Su Fang thought to himself.

Seeing this obviously very high-level and extraordinary demonic aura, Su Fang also realized that the secret under this [Magic Crystal] vein is still not simple.

Thinking of this, Su Fang cautiously walked into the gap of this magic crystal wall in the state of opening the "Heavenly Hidden Immortal Technique".

After going underground.

Su Fang soon saw a small cave, and there was also a large number of high-grade [magic crystals] piled up in the cave, and in that [magic crystal], Su Fang seemed to vaguely see a black corpse.

"Huh? What's that? Su Fang said curiously.

Then, Su Yi walked over to the pile of [Magic Crystals], wanting to see what was buried inside.

After approaching the [Demon Crystal], a faint coercion suddenly descended on Su Fang's heart.

Although he was in the state of "Heaven Full of Hidden Immortals", he could still clearly distinguish the strength of the corpse.

Thinking of this, Su Fang approached more cautiously, and then slowly pried open the pile of [magic crystals] that seemed to grow from the bones.

It took a long time for Su Fang to finally clean up all the [magic crystals] that had been piled up on the bones.

Later, he saw a corpse with two horns on the top of his head, and his whole body was like black jade.

"This is the bones of the Demon Realm Demon Clan." Su Fang exclaimed.

Although he hadn't really seen the demons in the demon world, he still knew some of the physical characteristics of the demons from some ancient books.

First of all, the double horns on the top of the head are the main characteristics of many demons in the demon world, including the Bull Demon Clan, although the Su side can't identify which kind of demon this corpse bone is.

However, its black jade-like bones, as well as the skull characteristics of the Demon Realm Demon Clan, have confirmed that the owner of this corpse bone is a Demon Realm Demon Clan.

"No wonder I can't see the [Magic Crystal] mine here, it turns out that a demon died here." Su Fang said.