The stars rippled.

Cheng Shen shook his huge tail fin and swayed a piece of light.

After the Blue Whale Tower is upgraded, the efficiency of returning to blue has become higher, and the Scourge Tower can be upgraded by one level with only five attacks interval.

And that takes just 25 seconds.

Swish!

Less than a moment.

The light of the upgrade once again lit up on the dark gray tower.

I don't know what kind of material is used to build the base of the tower, and patterns begin to appear on the surface, as if carving out a picture scroll of hell, floating in the three-color ball of light on the base of the tower, and the disaster scene is more and more real and dazzling.

There was even a faint wail coming from it.

【Please select your reward!】 】

The system is cold prompt.

Looking at the five cards depicting the defense tower diagram that appeared again in front of him, Cheng Shen did not rush to make a choice, but tried to delay as much time as possible, and constantly used the Blue Whale Tower to restore energy for the Cataclysm Tower.

Level 5,

Level 6,

Level 7 ......

The experience required to upgrade the tower is fixed within the same level, that is, before reaching level 10, the amount of energy required to upgrade the Scourge tower is 100 points, and more is only required when you break through level 10. Eight Chinese Net

And just in the blink of an eye.

Cheng Shen directly raised the level of the Cataclysmic Tower to level nine.

The abyss energy required to reach the tenth level became a thousand points, which slowed down the efficiency of the Blue Whale Tower.

At this moment, the five cards floating in front of his eyes suddenly flickered.

It's like it's going to disappear at any moment.

And a gray countdown also appeared in Cheng Shen's field of vision.

“10，9，8……”

"Sure enough, there is a time limit."

Cheng Shen had no accidents.

He wanted to get stuck with a system bug and slam the Scourge Tower to full level in one go, but the system apparently didn't give him this chance.

Drawing the Scourge Tower may be the system's reward for his excellent completion of Faction Battles.

But that's all about the rewards.

The system, so called a system, means that it will be fair to every survivor.

Although Cheng Shen was able to stand out among the same group of survivors and reach heights that no one else could reach.

But that's only because he seized the opportunity the system gave him.

The system never skimps on rewards, but it requires the survivors to use extraordinary wisdom and courage to fight desperately.

On this basis.

The system will not act in a way that disrupts the balance of the game for no reason.

Cheng Shen had already expected a time limit, but it was not too surprising at this time.

He quickly drew two of the five cards that he had been looking forward to.

[Interference sonar]

【Machinery】

[Level: Normal]

[Level: 1]

[Attack: 60]

[Rate of Fire: 2.0]

[Range: 120]

[Characteristics: The attack of this tower will have a certain chance to affect the hearing of enemy units, causing them to fall into a state of confusion, and the enemies in the chaotic state will attack regardless of friend and foe, and advance in a random direction]

……

【Godspeed Tower】

【Hred】

[Level: Normal]

[Level: 1]

[Attack: 0]

[Rate of Fire: 1.0]

[Range: 5]

[Characteristics: The attack of this tower will be locked to the nearest tower, and each time it attacks, it will increase its rate of fire by 0.01, and this status can be stacked up to 10 times]

……

The output attributes of the Scourge Tower are excellent enough, even stronger than the Primal Demon Tower.

This is undeniable.

All three of its total traits are area attacks.

And the plague of the second stage has a double panel attack bonus, which is comparable to the output of the evil dragon wave.

But the evil dragon wave only attacks enemies in a straight line.

Or probabilistic triggering.

The plague of plague is a continuous damage that covers the entire area!

For this alone, this Scourge Tower is much stronger than the Origin Demon Tower.

It can't compare to the Beginning Demon Tower's main thing is growth, the growth attributes of the two are far apart, if they are in the same running line, maybe the Beginning Demon Tower has broken through to the perfect level, and it is still stuck at the sophisticated level.

Low grade.

This means that the panel attack is low.

In this case, the Scourge Tower, no matter how strong its characteristics, will not be able to exert much power.

But now, with the appearance of the Blue Whale Tower, a secondary defense tower that can be called a perfect match for the Scourge Tower, all the weaknesses of the Scourge Tower can be said to have been filled, and its strength will undoubtedly surpass that of the First Demon Tower!

Therefore, when Cheng Shen screened the defensive lineup around the Scourge Tower, he could basically abandon the output tower that compensated for damage.

All of them are mainly auxiliary towers and control towers.

Speed Tower.

Increases the Scourge Tower's attack speed, which increases its damage rate for Famine and Plague.

Cheng Shen can also build the God Speed Tower next to the Blue Whale Tower.

But.

The attack speed of the Blue Whale Tower is 5.0, and even if the ten layers of the God Speed Tower are stacked, it can only reduce the attack speed by 0.1.

Limited role.

On the other hand, the Scourge Tower has a huge increase in attack speed from 1 to 0.9.

Naturally, it is clear who to choose.

Interference sonar.

It is to make up for the shortcomings of the Scourge tower in the field of air defense.

Cheng Shen had noticed that the fog of the famine disaster seemed to be unable to affect the air.

He had yet to see the effects of the other two catastrophes.

However, it is better for him to include air defense as one of the things that need to be added in advance, than to have an accident that cannot be repaired.

The remaining three cards disappear after the countdown ends.

Distance.

The crimson vortex surged again in a quivering sound.

[The second wave of Void Challenge monsters has struck! 】

[This attacker: Steppe wolf! 】

[Quantity: 120!] 】

……

The system prompt will sound directly.

It seems that it was because he sensed Cheng Shen's attempt to get stuck in the time loophole, and this time the offensive system did not send out a prompt for him to prepare in advance.

Cheng Shen looked at the gray wolves running out of the vortex gate, and couldn't help but shake his head, "Three minutes, the maximum time for each break is three minutes, and it won't be enough to wait until later......."

The experience required for each level of Scourge Tower is increased tenfold.

The effect of the Blue Whale Tower doubles for each level it is raised.

It won't take long, just wait until the Scourge Tower breaks through the Elite level, and the gap in upgrade efficiency will be highlighted.

Three minutes of time.

It's simply not enough.

He'll need to find a few more auxiliary towers to return to the blue.

Airplanes!

The battle has been triggered.

The longest-range jamming sonar is the first to activate, and the tower resembles a large bat, but the parts that make up the bat's body are metal plates and electronic wiring full of technology.

Its scarlet eyes lit up like two headlights.

Invisible sound wave diffusion.

The steppe wolf led by the steppe wolf bore the brunt of the blow, and was hit by the sound wave, and after the body was stunned, his eyes immediately glowed red.

"Whew!"

It let out a long whistle.

But it rushed in the direction of the crystal even faster.

Jamming sonar can only affect one target at a time, which is the biggest flaw of this normal-level tower.

Cheng Shen didn't expect it to play much of a role.

Call!

The next moment.

Scourge Tower activated.

A desolate dust mist slowly shrouded the steppe wolf's path.

The steppe wolf who rushed into the fog suddenly became dry and dull, and his body seemed to have lost a lot of weight.

It's like being hungry for a long time.

At this time, the scenes of disaster in the fog turned into green fluorescence, burrowing into their bodies like parasites.

-180！

-180！

-180！

……

"Whew!"

The fastest steppe wolf didn't last more than three seconds.

Straight to the ground.

Turned into yellow sand.

The ninth-level Scourge Tower, combined with the increase of the Blue Whale Tower, had an extremely significant increase in damage, and the second wave of steppe wolf blood was only a little more than five hundred points, and it was too late to pass through the haze covering thirty yards.

Steppenwolves died one by one.

Forward and forward.

The Scourge Tower's Abyss Energy slowly rises at a rate of +1 per second.

Originally, fast-moving monsters were recognized as a nightmare for all survivors in the gold challenge, but now Cheng Shen is extremely hopeful that they can die a little slower...... Unfortunately, it backfired.

In a few moments, there was only a single piece of yellow sand left on the long path of the void.

Scattered with the wind.

[Successfully defended!] 】

[Current Reward Accrued: 20 Coins!] 】

[Do you want to continue the challenge?] 】

……

Swish!

The light of the upgrade rises at the same time as the five towers in the field.

The Scourge Tower has been upgraded to level ten, and the attributes have not changed much, and the improvement of the other three ordinary towers is also dispensable.

Only the Blue Whale Tower's rise to the third level made Cheng Shen slightly excited.

It still maintains the previous gains.

Blue Whale Tower's blue recovery efficiency has been increased to +30 per attack, and the attack amplification has been increased to 90.

Unfortunately, after five waves, the system will give you the option to upgrade your towers.

Otherwise.

Cheng Shen really wanted to use the two selection opportunities after each defense to increase its level now.

Take a glance at the system's rewards.

Suddenly.

Cheng Shen's eyes lit up.

With little hesitation, he drew a card from it.

Build!

Airplanes!

A golden tower resembling a statue of the Holy Maiden appeared in the middle of the field, dressed in a white robe, with a sacred emblem on her chest, a compassionate face, and a chalice containing a blue liquid in her hands.

Crash!

Under Cheng Shen's control, all the liquid of the Holy Grail was poured into the Scourge Tower.

As soon as I saw it, its abyss energy value suddenly rose a little!

+200！

……

【Heavenly Mercy】

【Hred】

[Grade: Excellent]

[Level: 1]

[Energy: 0/200]

[Recovery: 20]

[Cost: 200]

[Range: 50]

[Characteristics: The attack of this tower will consume the accumulated energy of the self, and charge other towers, each charge can increase the attack speed of the target tower by 10%, and the effect lasts for up to 5 seconds]

……

The effect of this tower is very powerful even for a sacred tower, it is equivalent to a power bank!

And for the Scourge Tower.

It's a perfect match!

In particular, there is also a top-level auxiliary tower such as the Blue Whale Tower, and the blue effect of the Blue Whale Tower is the range effect!

Not only can it increase the Scourge Tower, but it can also directly affect the mercy of the sky!

And the mercy of heaven itself returns to blue quickly.

There are 20 points.

Pair with an extra 30 points to return to blue on the Blue Whale Tower.

That's 50 points.

Originally, it took 10 seconds to start with its own full energy, but under the influence of the Blue Whale Tower, it can be shortened to 8.5 seconds.

Don't look at the difference of only 1.5 seconds.

But you know.

The effects of the Blue Whale Tower are not static.

With each wave, every level up, its blue-back effect becomes stronger!

Moreover, if the effect of Heavenly Mercy is averaged to every second.

That's 20 Abyss Energy per second for Scourge Towers, which is 100 for five seconds!

That's three times the efficiency of the Blue Whale Tower!

"Brother Shen!"

"Hmm!"

Shen Changqing walked on the road, and when he met someone he knew well, he would say hello to each other or nod his head.

But it doesn't matter who it is.

There was no superfluous expression on everyone's face, as if they were very indifferent to everything.

on this.

Shen Changqing is used to it.

Because this is the Demon Suppression Division, it is an institution that maintains the stability of Great Qin, and its main responsibility is to kill demons and monsters, and of course there are some other side jobs.

Arguably.

In the Demon Suppression Division, everyone has a lot of blood on their hands.

When a person is accustomed to seeing life and death, then he will become indifferent to many things.

When he first came to this world, Shen Changqing was a little uncomfortable, but over time he got used to it.

The Demon Suppression Division is huge.

The people who can stay in the Demon Suppression Division are all powerful masters, or people who have the potential to become masters.

Shen Changqing belongs to the latter.

Among them, the Demon Suppression Division is divided into two professions, one is the town guard and the other is the demon exterminator.

Anyone who enters the Demon Suppression Division starts with the lowest level of demon slayer.

Then step by step, he is expected to become a town guard.

Shen Changqing's predecessor was a trainee demon slayer in the Demon Suppression Division, and he was also the lowest level of the demon slayer envoys.

Have memories of the predecessor.

He is also very familiar with the environment of the Demon Suppression Division.

It didn't take long for Shen Changqing to stop in front of an attic.

Unlike other places full of slaughter, the attic here seems to stand out from the crowd, and in the bloody Demon Suppression Division, it presents a different tranquility.

At this time, the attic door is open, and there are occasional people entering and exiting.

Shen Changqing only hesitated for a moment, and then stepped in.

Access to the attic.

The environment has changed in vain.

A burst of ink fragrance mixed with the faint smell of blood came to his face, making his brow furrow instinctively, but quickly stretched.

The smell of blood on everyone's body in the Demon Suppression Division is almost impossible to clean.