"Damn!"

Since the portal could not be destroyed, Xu Yao could only choose to retreat, this time he came in too much of a hurry, and he knew more about this portal.

But then again, who would have thought that there would be such a good opportunity to get him close to the portal.

"Let's go."

Xu Yao said to Lin Bingru beside him.

With that, the two of them were about to retreat, when suddenly, the portal fluctuated violently, as if something was passing through the portal.

Seeing this, Xu Yao pulled Lin Bingru and quickly hid behind the rocks on the side, according to the fluctuating movement, the things inside the door would come immediately, and it would be easy to be discovered if he evacuated now.

Sure enough, it only took a few breaths for a figure to emerge from the portal.

It was a 'man' with a pair of red horns on his head, and the reason why this character should be put in quotation marks is because this horned person has many other characteristics that distinguish him from people.

For example, the red skin, the bats on the back, and the eyes that radiated a murderous light.

There is no doubt that this is a demon race, and it is also a high-level demon race.

After the demon walked out of the portal, he quickly galloped towards the battlefield in the distance, and it was obvious that the other party's purpose in passing through the portal was very clear, that is, to support the battle ahead.

"It's a bit of a hassle."

Looking at the demon clan in the distance, Xu Yao frowned, the one who gave Xu Yao the feeling just now, the other party is likely to be a 7-star star.

The reason for this judgment is because the maximum teleportation limit of the portal is 7 stars, which is also related to the star rating of the portal, and the strong people who exceed 7 stars cannot pass through the portal.

Fortunately, the star level of this portal is 7, if this is replaced by an 8-star or 9-star portal, it will be a real big trouble, and then the 8-star and 9-star demons on the other side will come, and the East Departure Country will not be able to stop it at all.

But even if it's 7 stars, it's a high-level professional, and the appearance of the other party will definitely have a great impact on the battle situation.

When Xu Yao's brows were tightened, the portal fluctuated again, but this time the fluctuation was slightly weaker than just now, and it is estimated that this time it should not be 7 stars, but the size of this fluctuation is at least 6 stars.

Xu Yao's guess was right, since the 7-star demon clan, another 6-star demon clan appeared, and after the other party appeared, he also went straight to the battlefield.

It was precisely because the other party had a clear purpose and did not carefully observe the surroundings, otherwise, Xu Yao and Lin Bingru would most likely be discovered.

It's just that there are constantly people on the demon side, and although the head of the Tranquility Regiment is strong, his two fists are invincible to his four hands, and God knows if there will be new support.

And the most radical way to resolve the current situation is to destroy the portal.

But Xu Yao didn't know how to destroy the portal, and even if he knew, if destroying the portal required the use of some special props, Xu Yao didn't have it.

"There it is!"

Suddenly, Xu Yao had a flash of inspiration, and immediately, Xu Yao took out the identity card of the secret trading channel. Click to enter the responsive section, and Xu Yao made a request.

"Ask for an item that can destroy the Void Portal."

Not long after Xu Yao's request was sent, there was a reply on the card, "What treasures are you going to take out to trade?" ”

The other party didn't say money, which means that the things that can destroy the void portal are not something that money can get, only barter.

"What exactly can destroy a Void Portal? Only by knowing the value of what I need can I give the corresponding treasure. ”

"If you want to destroy the Void Portal, you can only destroy the nearby Void, here is a recommended 8-star epic card to distort the Void!"

"Shhh

”

Seeing the other party's reply, Xu Yao only felt a tingling scalp, 8-star epic, which is basically priceless.

No wonder the other party didn't say the price, Xu Yao wanted to get this twisted void, then, he needed to take out the equivalent treasure.

A treasure equivalent to an 8-star epic, even some 7- or 8-star professionals may not be able to take it out, but Xu Yao has an equivalent treasure.

Orion, the butler of the mansion, is even more legendary, and the value of the cookie spoon is no worse than that of an 8-star epic card, but these are all things that Xu Yao can't exchange.

After thinking about it, Xu Yao felt that there were only two valuable things that he could take out and exchange, one was the solution of the construction method, and the other was the mana crystallization card.

These two are enough to change the world, and the value is definitely a legendary-level existence, of course, a full set of mana crystallization cards can reach the legendary level, and now Xu Yao has only mastered 0, 1, 2, and 4-star mana crystal cards, which cannot be regarded as legendary.

However, the solution of the construction method is a real legendary-level treasure, which Xu Yao combined with the mathematical knowledge of the earth.

It is something that can help professionals quickly build mana crystals and advance quickly.

Exchanging this for an 8-star epic card is definitely too much, so Xu Yao plans to use the method of making mana crystallization cards in exchange for an 8-star epic card that can destroy the portal.

Immediately, Xu Yao sent his price code over.

Then, the other party fell silent, obviously the other party was calculating whether the value of the things Xu Yao gave was equal.

While waiting, another 6-star demon appeared in the portal, which made Xu Yao a little anxious, and he didn't know how long the head of Tranquility could hold out.

In case the battle at a distance ends, and the enemy returns, then, it is too late.

"Yes!"

Finally, the secret trading channel officially gave Xu Yao a reply, and Xu Yao used the method of making 0-star, 1-star, and 2-star mana crystallization cards in exchange for 8-star epic cards to distort the void.

As for the 4-star mana crystallization card, Xu Yao didn't take it out, because the biggest effect of the mana crystallization card is to help people quickly step into the path of cultivation and enter the professional level, as for its kryptonite cultivation attribute, except that Xu Yao can make it in large quantities with the Book of Cards, who would be so extravagant.

And to help people quickly enter the professional level, 0-star, 1-star, and 2-star mana crystal cards are enough.

The official of the secret trading channel obviously saw this, so he readily agreed.

The deal was concluded, and Xu Yao put the method of making the relevant mana crystal card into the special space of the identity card, and then activated it.

The next moment, the data disappeared and was replaced by a card.

Name: Twisted Void.

Quality: Epic.

Rating: 8.

Faction: Space.

Effect: Destroy all followers.

Taking out the card, Xu Yao looked at the short and powerful effect, and couldn't help but be speechless, the thing was in hand, but the next question was how to activate this epic card of up to 8 stars.

Xu Yao is only 3 stars now, and Lin Bingru is only 4 stars.

However, after learning that it was an 8-star epic card that could destroy the portal, Xu Yao already had a plan, and it was precisely because of his calculations that Xu Yao would continue to trade, otherwise, he would directly stop the transaction.