The three forces of the dog clan, the combined combat technique of transforming the void evil dog, Xu Yang has already studied.

The power of this skill is very strong, enough to increase the strength of the three invincible Xuan Emperors by ten times! However, this "Three Forces Together" skill requires all three of them to have almost the same soul similarity, and after it is cast, there will be a lot of backlash, and the caster will wilt for a while.

Xu Yang carefully flipped through the combined attack techniques of the Underworld, and the more he looked at it, the more surprised he became. The combined attack of the underworld, whether it is the launch conditions or the variety of tactics, is far superior to the three-force combined combat skill!

The combined attack of the underworld does not require exactly the same soul similarity, but only requires the frequency of mental fluctuations to be almost the same. Moreover, the combined attack of the demons can conjure up different kinds of wild beasts, such as pythons, poisonous dragons, tigers, fierce eagles, and so on.

The most important thing is that if you take the initiative to disperse the combined attack of the demons, most of the combat power of the few people who cast the spell can still be preserved and will not be injured.

The four peak Xuan Emperors of the underworld only showed one of the changes: the attack of the mad python was forcibly broken by Xu Yang. This also led them to be devoured by the combined combat technique, and they were not lightly traumatized.

"I see...... This 'Three Forces Together' combat technique is probably a change learned from the 'Hades Demon Combined Attack'!" Xu Yang looked down, and finally saw a kind of transformation called "Wild Wolf Strike" in the Hades Demon Combined Attack, which was almost the same as the three forces of the dog clan, and the rune arrangement of the Void Evil Dog.

It's just that the dog clan stole from the hands of the underworld and didn't learn home, not only did they only learn one change, but the activation conditions were also extremely harsh. If it weren't for the three invincible Xuan Emperor Commanders of the Dog Clan, their souls would not have been able to perform this mystic technique at all.

"So...... Can the combined attack of the underworld demon be used by the human race?" Xu Yang felt a little excited in his heart. He had also seen the powerful power of the combined attack of the demons. The four peak Xuan Emperors of the underworld joined forces to conjure up a wild python. The power is almost greater than that of ordinary invincible Xuanhuang powerhouses. It's just that they met Xu Yang, Xu Yang, who cultivated both the eight extremes, even if he didn't use the superimposed secret technique, his strength was eight times that of the ordinary invincible Xuan Emperor!

Xu Yang studied it carefully, and he finally saw the conditions required for the combined attack of the Underworld. The first is that the Xuanli attribute is the same. The second is the frequency of mental fluctuations, which cannot be too different.

Compared with the dogs' three-force combined combat skills, these two conditions are undoubtedly much more relaxed.

"When I return to the Tianjing Secret Realm, I can select a part of the Terran Xuan King and Xuan Huang powerhouses with similar mental fluctuation frequency and the same Xuan Power attributes, and try to perform a combined attack of the Underworld. ”

The attribute of Xuanli is easy to judge, but the frequency of mental fluctuations must be screened by Xu Yang, who has practiced the art of soul casting. That's anyway, though. All of them have given the Terrans a way to fight the strong with the weak.

There is also the problem that the number of people who can combo the demon can only hold up to six people. Xu Yang couldn't help but think that if there were more people, dozens or hundreds of Xuan Emperors would perform combined attack techniques at the same time, how terrifying would it be? I'm afraid it would be enough to challenge the world-honored powerhouse.

It's just that this matter is still far away, and even the combined attack of the demons of less than six people. Xu Yang was not sure that the master of the human race would master it, and he just had the idea of giving it a try.

"Yes. I'm going to leave the territory of the Beast Clan soon, and it will inevitably be delayed in reporting the war between the Beast Clan and the Hades. It's time to contact those intelligence agents in the Heavenly Secret Realm, and by this time, they should already have a certain foundation in the territory of the two clans. ”

Xu Yang flipped his palm and took out a list from the storage ring. Above is the intelligence officer sent by the Heavenly Machine Secret Realm to assist him.

These intelligence officers did not communicate with each other, but only unilaterally contacted Xu Yang. This avoids catching one and bringing out a litter. Of course, if Xu Yang, the person in charge, is exposed and captured, all the intelligence officers will be in danger. The entire intelligence network will also be completely unplugged.

Xu Yang opened the Tianyan Talisman and entered one of the array talisman coordinates. Under the infusion of Xuan power, an illusory light curtain lit up.

Hades territory, a desolate Terran city.

A newly relocated pawnshop owner was spitting and bragging to others about what he had seen along the way, when suddenly his expression moved slightly, and he immediately yawned, saying that he was going inside to make up for sleep, and then took his leave and left.

And when he came to the bedroom, the pawnshop owner's aura changed, from an ordinary ordinary person to a mystic with Xuanzong cultivation! He carefully took out a sound transmission array from the storage ring, injected the mysterious power, and suddenly the light curtain lit up.

In the light curtain, there was a thick black fog, and there was a figure in the black fog, and his face was not real.

"Meet the Envoy, I'm Number Four. The pawnshop owner said respectfully.

"Where are you? already in the Underworld Territory?" a dry, hoarse voice rang out from within the black mist in the light curtain.

"Returning to the envoy, I have entered the territory occupied by the Hades Clan, and this place is the Yibao City of the Heavenly Ascending Kingdom!" said the pawnshop owner, "What does the envoy command?"

"I'll say two things," said in a hoarse voice, "First, during this time, pay close attention to the internal movements of the Hades, especially the transfer of materials to Che Chi Kingdom. Second...... If you get valuable information, send it to me on the fifteenth day of the month. Of course, if it is urgent, it will be sent immediately. ”

"Yes, in accordance with the envoy's orders. The pawnshop owner answered the order very neatly, and then the light curtain dispersed.

At the other end of the light curtain, that is, in the quiet room on the seventh floor of the Black Stone Tower of the Black Feather Country, Xu Yang dispersed the light curtain at the same time.

The black mist simulated by the dark extreme mystical force was put away by Xu Yang, and the dry and hoarse voice change was also canceled. These necessary disguises are to prevent the act of a traitor from endangering Xu Yang's safety.

"Alright, let's go ahead and pass the command. Xu Yang checked the list and entered the coordinates of the second formation symbol through the guò Tianyan symbol.

In this way, Xu Yang successively notified 125 intelligence officers who had penetrated into the areas occupied by the two ethnic groups. It's a tedious job, and it's very heavy. If there was a person in charge of intelligence among the more than 100 people who contacted Xu Yang, it would make Xu Yang much easier.

However, there are advantages and disadvantages, and it is easy to do that, but it is possible to miss out on a lot of valuable information, and once the designated commander is exposed, the entire intelligence network will be uprooted, and the loss will be too great. Xu Yang would rather work hard by himself and use seemingly stupid methods to ensure that nothing goes wrong.

After informing the last intelligence officer, with Xu Yang's stamina, he felt a little tired. (To be continued......)