Su Li was shocked when he understood the information in his mind. The super heart doubled his physical fitness. In his original physical state, if he broke out with all his strength, each attack could last for two minutes. Now the super heart can prolong this full burst state for an additional three minutes, It means that he can last up to five minutes now.

This state will be very terrible.

In addition, he once again gained an additional 100 kg, and his strongest strength will reach an amazing 2300 kg.

In a few seconds, earth shaking changes took place in his body. Su Li took a deep breath and looked at the retreating dead. He was not in a hurry to attack, but continued to sense the information in his mind.

Among them, the most noteworthy is undoubtedly the "art of spiritual source" that can be opened and understood only by those who reach level 5.

You can also choose to master the "art of spiritual source".

Maybe it's related to his connection to strengthen muscles. The "spiritual skill" he can understand is related to muscles, one is "iron muscle" and the other is "devil muscle".

But there was no detailed information about these two kinds of spiritual source techniques. He didn't know the specific effects, so he could only speculate by name.

"Steel muscle", as the name suggests, should be able to make the muscle become like steel. Its effect may be similar to Chen Xiangyu's "steel skin". Once mastered, it will have amazing defense and even be invulnerable.

The "devil's muscle", just from the name, it's hard to guess its efficacy. It should be the ability at the same level as the "iron muscle", but Su Li guesses that the specific ability may be related to strength.

For a moment, it was difficult for Suli to choose, and the dead screamed again and rushed up to Suli again.

Su Li gently breathed out, his eyes glowed, stared at the fallen souls, and launched the "spider walk". With the upgrade, the comprehensive ability of all aspects improved. Su Li's speed in entering the "spider walk" state increased again. His figure swung, interspersed between the two high-level corpses and beasts, and in an instant he circled behind the dead, and his left hand became a fist, He punched out.

With a "bang" sound of defeating leather, the boxing force of more than 2000 kg directly flew the dead out, and fell heavily to the ground.

Su Li stepped up and stopped by two high-level corpse beasts. Su Li swept out with a knife in his right hand. The speed and power were perfectly combined. The two high-level corpse beasts had no time to react, and their heads flew out.

Two Lingyuan entered Su Li's body. Unexpectedly, there was no message in his mind.

"The spirit source of this high-level corpse beast has no effect on me?" Su Li frowned slightly and promoted to level 5. If he wants to upgrade again, he needs a full 70 spirit sources. Killing this high-level corpse beast has been unable to obtain effective spirit sources. It seems that he needs to kill stronger monsters.

After Su Li killed the two high-level corpses, the fallen dead got up again. Although there were four holes in his head and Su Li hit a trapped fist hole on his back, he didn't die. He just kept retreating and wanted to open the distance with Su Li. It was obviously aware that Su Li in front of him became stronger and completely different from that just now.

"Do you want to escape?" Su Li grinned and suddenly lowered his body slightly. The phantom of legs appeared around his body again and entered the state of "spider walking". The retreating undead had a bad consciousness and suddenly roared. The senior corpses who heard it roared suddenly seemed to have received some special instructions and stopped attacking Su Li, Ding Longyun and Gong Xiao, Instead, he grabbed the bodies of arrow snakes, water monkeys and corpses left all over the ground and threw them outside the edge of the building.

The sudden scene surprised everyone. Su Li had rushed out like lightning and came within three meters of the dead in the violent retreat. The dead knew that he could not escape. He grabbed his claws wildly and ejected his head. He wanted to fight back against Su Li and strive for a chance to escape.

Su Li staggered his feet and moved like a ghost. He avoided its attack. He clenched the machete in his hands and cut it in the air.

The knife hit the neck of the undead, which stretched like a spring, and cut off the long neck with a hiss.

The bright red blood spurted out, and the dead's head with four blood holes flew out from afar.

On the top of the building, there are high-level corpse animals everywhere. These corpse animals seem to be in a frenzy and constantly throw corpse animals outside the building. Ding Longyun had no time to chase and kill.

In a short time, at least ten or twenty corpses were thrown down.

Su Li successfully killed the dead. A spirit source disappeared into his body. Finally, a message appeared in his mind.

"Level 5 spirit source: spirit source 270"

Kill the undead and gain two spirit sources at one time, which is equivalent to killing the elite beast at the same level.

At the moment, Ding Longyun, Gong Xiao and Xu Haihai are chasing and killing these high-level corpse animals who are crazy to throw their bodies downstairs.

During the period from Su Li's fight with the dead to his killing, the three of them killed many dead animals, and each of them harvested more than ten spiritual sources.

In a short time, more than twenty corpse beasts were thrown down. This was the last order given to these corpse beasts before the dead. Su Li entered the walking state again and waved his machete out.

Although he can't harvest effective spiritual source by killing these corpse beasts now, he must stop them.

"This guy ordered corpse beasts to throw so many corpse beasts down. Is this to lead to more terrible monsters? Even if it dies, it wants to drag us to death?"

Su Li thought that the only reason why the dead gave the order could only be this possibility. From this point of view, the wisdom of the dead was not low.

Su Li cut off the heads of one senior corpse beast after another. In the blink of an eye, more than ten corpse beasts were reaped by him, and he was still deliberating on the choice of the art of Lingyuan in his mind.

Which should we choose between "iron muscle" and "devil muscle".

Previously, Xu Haihai said that it will be a qualitative leap from level 4 to level 5. The most important reason is this "Lingyuan skill". The "Lingyuan skill" is far more powerful than special ability and even determines the future. Therefore, it is undoubtedly very important to choose the most appropriate Lingyuan skill. He has to be cautious.

"Iron muscle is a kind of complete defense ability, which can greatly enhance my survival ability. Like Chen Xiangyu, it just looks very strong, but if I really encounter a very powerful opponent, the other party can shock me with strong strength... Just like I dealt with Chen Xiangyu at that time..."

Suli was pondering.