The fanatical troll didn't honestly enter the poisonous mist, and it knew how terrible the abyssal plague was.

But I saw that it suddenly lifted its breath and blew out a filthy yellow wind, which actually blew away most of the poisonous mist and the poisonous pool covering the stone slab.

The blindness soon released a poisonous mist again.

But at this moment, the fanatical troll strode out, directly through the two corners, and ran out of the enveloping range of the poisonous mist, and it could cross the three stone slabs in one step, so that the only remaining poisonous pool could not take effect.

A line of defense between two of the most intractable abyssal plague bugs.

It was disintegrated like that.

It's the first time Cheng Shen has encountered a unit that can confront the defense tower!

Crackling!

Once the fanatic troll had passed through the poisonous mist, he stepped into the thunderbolt-surging lava field.

Now it can't dodge.

-133！

-141！

-172！

The damage numbers of magma, shock, and lightning began to jump.

Meantime.

All of Cheng Shen's defense towers also began to output.

The palm thunder tried hard to split out the electric light, and the thunder magnetic laser tower shot out one after another through the thunder gun, and even the empty capture net was trying to output.

But their damage is pitifully low.

-62！

-98！

-43！

……

The only ones that can deal more than 100 damage to Fanatical Trolls are the Flame Tower, the Dark Thunder Mage, and the Sunfall.

And the only one who can deal more than a thousand damage is the Dark Thunder Mage.

The trickiest part.

As the boss unit, the Zealous Troll has a trait that no other monster has, immunity to control!

Cheng Shen's lineup was originally the strongest means to control the connection.

But it wasn't affected at all.

At most, when he stepped into the magma area that had mutated after being bombarded by the Dark Extinguishing Thundercloud, his body had a slight pause and twitch.

However.

And that only delayed it by less than three seconds.

Fortunately, the output of the Dark Thunder Mage is strong enough.

Crackling!

A pitch-black bolt of lightning slashed down on the fanatical troll's body.

-770！

Chain Lightning!

-1540！！

-1540！！

……

It's not the same as the effect of the Lightning Tower.

Thunder Mage's chain lightning attack can deal multiple damages to the same target without other units.

Five damage stacks.

Plus the constant scorching of the lava area.

The Zealous Troll's HP has dropped by a third!

"The output is sufficient!"

Cheng Shen breathed a sigh of relief in his heart after calculating the damage.

The Zealous Troll has 35,000 HP, which is ten times more than a normal troll unit, and it has three abilities in addition to being uncontrolled.

One is to increase passivity to anomalous resistance.

A foul breath that can temporarily inactivate a tower, but was forced out by the abyssal blightworm.

It's still cooling.

The last one is the fanatical will:

Increases attack speed,

Add the speed of movement.

It has remained in this condition since it entered.

Combined with the uncontrolled nature of the boss, this is undoubtedly a rather difficult enemy. Not to mention anything else, if its foul breath was sprayed on the body of the Dark Thunder Mage, Cheng Shen could directly announce his violent death.

Thankfully it didn't.

The Fanatical Troll's "Rough Thick Skin" passive can cancel out 60% of ailments, and the ailments here do not refer to control states such as freezing and paralysis, but to special effects such as infection and poisoning.

Even so.

It didn't dare to break into the plague area created by the Abyss Plague Worm in a daze, but wasted a key skill.

It shows the horror of the abyssal plague insects.

But that's exactly what happened.

As a result, it no longer has the means to limit the output of the Dark Thunder Mage.

Boosted by rhythm notes.

Thunder Mage's attack speed reaches 0.85 each time.

Every 3 seconds on average.

to trigger a chain of lightning.

With the remaining HP of the Zealous Troll, you can hold up to four damages!

Can it rush to the crystal?

The answer is no.

The Zealous Troll is hundreds of meters away from the Crystal, and even though it has a Fever status bonus, it can travel up to eight meters per second.

But it was doomed.

"Wu Mosa ......!"

The fanatical troll let out a feeble roar, and its massive body collapsed, and it was finally wiped out by a chain of lightning triggered by a single strike from the Dark Thunder Mage less than thirty meters from the crystal.

[Successfully defended!] 】

[Reward has been accumulated so far: 100 gold coins!] 】

[Obtained: Boss Chest!] 】

[Do you want to continue the challenge?] 】

……

"Hoo ......"

Cheng Shen sighed under pressure.

He couldn't help but think that there was a level 23 main tower, and it was so difficult to fight, and the blood volume of the fifth wave of bosses in reality was even higher.

Will he really be able to hold on?

Leaning on the Magic Stone Tower?

Cheng Shen shook his head.

Although the fixed HP damage of the Magic Stone Tower was very powerful, after fighting this fanatical troll, he had already noticed some details.

Monsters have an auto-health regeneration attribute!

This is most evident in the spirit armor he once fought.

And the health regeneration attribute of the boss unit is definitely stronger than that of the elite unit.

In fact, if it weren't for the Zealous Troll's health regeneration attribute, it would have hung up when it received the fourth chain lightning attack.

Just a dozen seconds of fighting.

The automatic health regeneration just helped it hold up one-fifth of its health bar!

Cheng Shen could think that once the fifth wave of bosses appeared, I am afraid that the damage of the Magic Stone Tower would only be equal to its automatic health regeneration value per second.

To rely on it to work wonders.

But it's a fantasy.

"It's enough to rely on the lightning tower to fight group damage, but what if the fifth wave leader doesn't go with the mobs? The output of a single product is only a sixth-level ice tower, which is not enough to scrape the boss unit for ......"

Cheng Shen suddenly broke out in a cold sweat.

He had always thought that with his lineup it would be enough to face the leader units of the fifth wave.

Only now do I realize that

The boss unit has two traits that are simply heavenly and natural.

One, go alone.

Second, no control!

Unless he directly used the parchment roll, Cheng Shen would not have thought that he had the slightest chance of winning.

This Void Challenge couldn't have come at a better time!

"We have to get a main tower!"

Cheng Shen said in his heart.

The next fourth wave of monster sieges, and the fifth wave of ordinary monsters, can barely squeeze out some time for him to cultivate.

It's too late.

It's really too late.

After Cheng Shen stabilized his mind, he looked at the gains from this battle.

Boss Chest.

Turn it on directly.

[Obtained: Sun Disc (Void Rune)!] 】

[Obtained: Clear Water Holy Grail (Void Rune)!] 】

[Obtained: Dirty Heart!] 】

……

Two Fine-level runes were opened in the boss chest.

One for fire damage.

One cap on energy.

Obviously, these are all special runes for Sunfall, but unfortunately it is the defense tower that Cheng Shen just got in the last wave, and it is only level two at this time.

If you change to two thunder runes, the dark thunder mage can take off directly.

The Last Dirty Heart.

But it's an item that can be used to bring out the Void Challenge.

【Dirty Heart】

【Ingredients】

[Level: Rare]

[Description: The filthy organs of the Zealous Troll, which can permanently increase health by 1000 HP, 20 defense, and 1 movement speed after being eaten directly, but will cause itself to produce body odor, which only takes effect when used for the first time.]

Insider tip: Maybe try cooking it. 】

[Freshness: 99%]

……