For a moment, like thousands of blades pierced the body of the mutant crocodile beast, and then flew out from behind. Song Jian, who was originally pounced on it, stopped in time, causing the mutant crocodile beast that was originally preparing to fight with him to have a look of astonishment on his face.

Just as the mutant crocodile beast was stunned, dozens of spiritual swords, under Song Jian's control, drew arcs in the air and continued to fly towards the mutant crocodile beast from behind.

With just one attack, the qi and blood value of the mutant crocodile beast quickly dropped at a speed visible to the naked eye. On the one hand, it was related to the damage of the spiritual sword, and on the other hand, it was also related to the drastic defensive decline of the mutant crocodile beast.

Originally, the damage of each spirit sword was only more than 3,000 points, and the fire damage of the karma fire was only more than 5,000. However, on the body of the mutated crocodile beast, each spirit sword could actually cause 7,000 or 8,000 damage, and more than 500,000 damage, and one attack was more than 400,000 damage. Song Jian's damage was simply incomparable to it!

"I can control the attack of the spirit sword, why do I still have to get close to you?" A sneer appeared on the corner of Song Jian's mouth. The control range of the spirit sword exceeded 1,000 meters, and it was more than enough to kill the crocodile beast in front of him. If it weren't for his insufficient control, he could not release all the spirit swords at once. Otherwise, the mutated crocodile beast in front of him would not be enough for him to cut it at once.

The most critical reason why he summoned only more than fifty spiritual swords was that Song Jian was able to control more than fifty spiritual swords at will, like an arm to use his fingers, attack as he wanted, attack from whatever direction he wanted, and attack from wherever he wanted, and even control some of the spiritual swords to form a sword formation combination, causing great trouble to the mutated crocodile beast.

For a moment, the mutant crocodile beast was completely suppressed, and only it could be heard in the whole room roaring and screaming. Countless spiritual swords were like Lingchi, causing the mutant crocodile beast's body to shoot blood arrows.

For Song Jian, this battle was much easier than before. Standing more than ten meters away from the mutant crocodile beast, he randomly controlled the spiritual sword to attack the mutant crocodile beast, but the mutant crocodile beast could not touch him at all. Even if he wanted to rush over several times, Song Jian forced him back with the sword formation.

The mutated crocodile beast, which originally had insufficient qi and blood value, was moving slowly and slowly in the struggles of weakness. Just when its qi and blood value was still one-fifth, its entire body began to burst out with a hot light, and a wave of heat burst out from its body, and its muscles began to expand rapidly.

"Is this going to self-destruct?" Song Jian was shocked and quickly accelerated the attack. However, this time the attack of the spirit sword encountered obstacles and could no longer easily pierce the body of the mutant crocodile beast like before. It was like in an instant, the body structure of the mutant crocodile beast changed again, and even the flesh and blood body became like steel and iron.

Dangdangdangdangdang~

A series of metallic attacks and sparks splashed everywhere made Song Jian give up and continue to attack and retreat.

The power generated by self-destruction in such a small room is much greater than that in an open place. Song Jian is even worried that it will collapse the entire underground base. You must know that whether it is the three potions placed in this room or the meteorite fragments that may be obtained, it is unacceptable to Song Jian if it is damaged.

Song Jian wanted to stop the mutant crocodile beast from self-destructing, but there was no way. Its self-destructing is a set mechanism and is not controlled by the mutant crocodile beast. From its shocked and desperate eyes, it can be seen that even the mutant crocodile beast does not know that he actually has the skill of self-destructing.

Boom ~

A huge roar sounded in the room. At this time, Song Jian had already hid out and stood forty or fifty meters away from this room.

After a violent shaking, the surroundings became quiet again. Song Jian waited for a while and walked towards the room where the mutated crocodile beast exploded.

Standing at the door, Song Jian smelled a strong smell of blood. When he walked in, he found that the walls of the room were splattered with black and brown blood. The mutant crocodile beast did not even leave a corpse. No, let alone the corpse, even larger pieces of meat or bones were not left. It seemed that its body turned into blood at the moment of self-destruction and sprayed within a radius of dozens of meters.

"Even, didn't even have a spoil?" After searching carefully, Song Jian was disappointed to find that this boss, who was at the peak of the dominance level, actually didn't even have a spoil after his death. As for the mutated organ that can improve the level evaluation, it is even more impossible for him to exist.

However, perhaps because of the self-destruction of the mutant crocodile beast, the defense device on the stone platform in the room was destroyed. The thick light curtain that originally enveloped the surface of the stone platform disappeared, and the three potions stored inside were within reach.

"This may be the spoil, right?" Song Jian guessed in his heart, walked forward, picked up the three test tubes, and observed them carefully.

The liquid in these three sealed test tubes presents a clear and transparent light like a ruby. It looks like blood at first glance, but after careful observation, it is a hundred times clearer and purer than blood.

"Controllable biological mutation serum..." Song Jian carefully checked the properties of these three test tubes: "The attributes are to improve biological potential and produce mutations that are beneficial to the biological body. Each organism is limited to one. Too much use will cause the biological gene to collapse!"

"This should be the research result of these researchers at the underground base. Unfortunately, I don't know what happened to this underground base, so even if they leave, they will not take it away!" Song Jian said in his heart, but he thought of the large number of bones in the underground base. I'm afraid that none of the staff at this underground base would escape and all died here.

All items in the assessment world cannot be taken out, and they can only improve the pass evaluation after the assessment is over. However, if they can be used in the assessment world, the effect cannot be stripped away. Just like if Song Jian does not use these serums now, then after leaving the assessment world, these items will improve the pass evaluation. If they are used now, the enhanced strength will not be deprived of when leaving.

Generally speaking, in this case, the examiner will use the items directly, and no one knows whether their assessment will be successfully passed. Once the main task cannot be completed, no matter how many precious items you have, it will not be able to improve the pass evaluation, because you have not passed the level at all! All items will disappear.

Song Jian thought for a while, opened the battle pet interface and looked at the black dragon. At this time, in the battle pet interface, a girl in a black Gothic dress was lying on the ground and sleeping soundly. Song Jian tried to summon her, but was prompted that the battle pet was in advanced sleep and could not be summoned.

"It has been successfully promoted and is already at the commanding level, so why are you still sleeping?" Song Jian frowned after checking the attributes of the black dragon.
Chapter completed!