The anxious hero will naturally exchange for unicorns first, while the more patient one wants to accumulate it and wait for the green dragon to be exchanged for in the future.

Of course, both plans have their own reasons, and Cheng Kong would not advise anything.

But such an easy battle to defend the city will never happen all the time.

Just after a few days of rest, reinforcements from the Green Leaf City finally arrived.

Cheng Kong discovered that this reinforcements from the Green Leaf City were completely discovered by accident when he rushed to the river where the pirate ship was docking.

At first, Cheng Kong thought it was like the reinforcements before.

As a result, when he rode the thunder mantis and saw it, he couldn't help but feel a little shocked. Even he didn't expect that the number of enemy troops coming from the so-called Green Leaf City would be so large.

There are thousands of tree demons leading the way in front, and there are tens of thousands of centaurs, dwarves, and elves following them. The Pegasus Knights flying in the sky will not be less than two thousand, and there are more than two hundred unicorns serving as guards.

As for the number of giant dragons, there are not many, there are only about twenty, most of them are green dragons, and only five golden dragons.

But even so, such a huge army is enough to give people a sense of shock.

Cheng Kong understood why the reinforcement army was so slow, and it was completely dragged by the army of tree demons who were opening the way.

However, such an arrangement has many benefits. At least it is difficult to resist when the tree demon army slowly pushes over.

Cheng Kong then rode the Thunder Mantis back to the Golden Dragon Giant City. Such a powerful reinforcement would be impossible even if he wanted to fight alone. He still had to fight with the overall strength of the Golden Dragon Giant City.

Due to the drag of the tree demon vanguard, it is impossible for this reinforcement army to arrive at the Golden Dragon City in a short period of time.

This also gave Cheng Kong plenty of time to discuss countermeasures with Lao Ma and others.

Obviously, if the opponent is allowed to slowly push it near the Golden Dragon Giant City, even if he wins this battle to defend the city, the losses will make Cheng Kong feel unbearable.

Therefore, the decision made after everyone discussed was to raid in advance!

That’s right, it’s just taking advantage of the opponent’s distance to attack in advance and intercept the kill halfway!

Of course, the most critical point of this plan is to rely on the Fire Phoenix summoned by Cheng Kong.

At the speed of those tree demon vanguards, it may take more than a day for the reinforcements to arrive at the Golden Dragon City.

This gave Cheng Kongke the opportunity to continuously attack the enemy with the summoned fire phoenix. When the opponent arrives at the Golden Dragon City, he will probably suffer heavy losses.

Of course, in this plan, the Fire Phoenix summoned by Cheng Kong is just to delay the opponent's cannon fodder. He can kill as much as he can. After the loss, he will recover his mental power and summon it again.

Of course, this method can only be used in this situation. If the other party approaches the Golden Dragon City, then the fire phoenix summoned by Cheng Kong should be used carefully and should not be killed easily.

"That's it."

After discussing this countermeasure, Lao Ma stayed to arrange corresponding defense measures, while Cheng Kong sat back on the thunder and lightning mantis and rushed into the sky and headed towards the enemy.

When he was hundreds of miles away from the enemy, Cheng Kong drove the thunder and lightning mantis to the ground.

Although the summoned fire phoenix is ​​powerful, it takes time to summon the fire phoenix. If Cheng Kong was summoning the fire phoenix, a group of green dragons rushed over, it would be fun.

Therefore, when Cheng Kong summons the Fire Phoenix, he always chooses a slightly safer place, at least where the Thunderbolt Mantis can protect himself.

Well, a distance of hundreds of miles should be safer. At least in a short period of time, the movement of summoning the fire phoenix should not attract the attention of those green dragons and golden dragons.

As Cheng Kong began to summon the fire phoenix, a magma land gradually formed, and fourteen giant eggs gradually emerged from the magma.

Cheng Kong's worries were not unreasonable. Just after fourteen giant eggs emerged from the magma, more than 20 giant dragons resting a hundred miles away immediately raised their slender necks and sniffed them towards them. There was no doubt that the huge flame power generated when summoning the fire phoenix attracted their attention.

Led by two golden dragons, the eight green dragons flapped their wings and soared into the air and rushed towards Cheng Kong.

To be honest, if these giant dragons arrived before Cheng Kong summoned the Fire Phoenix, then even if the thunder and lightning mantis and the archangel stepped forward to intercept the attack, the consequences would probably not be too wonderful.

After all, for the Thunder Mantis, being able to intercept two golden dragons at the same time is already the limit. After all, the golden dragon is also the top military branch after evolution, and the Archangel, well, if you face the five green dragons, you might fall directly.

No matter what, Cheng Kong's previous choice was very right. At least before the giant dragons appeared, fourteen fire phoenixes jumped out of their giant eggs and rushed towards the sky.

Therefore, when the dragons approached here, the fourteen fire phoenixes, together with the thunder and lightning mantis, and the archangel were already waiting for the dragons in the sky.

Cheng Kong sat on the back of the Thunder Mantis and watched the giant dragons who were throwing themselves into the trap to speed up. He couldn't help but show a sarcastic smile on his face. He took out the water-type magic book contained in the space ring with his left hand, quickly turned to the fourth page, and poked the spell sign of the prayer technique, and a water-blue halo spread out from the magic book, covering the fire phoenix, the thunder mantis and even the archangel.

In a blink of an eye, a trace of blue light appeared on these creatures.

This group's prayer technique can greatly improve the attack, defense, and speed of the subject. There is no doubt that this spell alone is enough to allow Cheng Kong's side to gain an absolute advantage in the next battle.

But this is not over yet. Cheng Kong then took out the fire magic book, turned to the fourth page, and poked it gently: "Fire Shield!"

A ball of fire spread out, adding another circle of red brilliance to the thunder mantis, fire phoenix, archangel, etc.

The Fire Shield Technique is to add a flame shield to the subject's body. The damage caused by the enemy during hand-to-hand combat will be rebounded by part of the rebound. With Cheng Kong's wisdom Technique bonus, it can rebound by 30%, which is also a considerable damage.

In the end, Cheng Kong also released a violent technique.

With Chengkong's wisdom bonus, this violent technique can reduce the creature's defense to zero and increase the creature's defense by twice the attack power.

That is to say, multiply the creature's defense power by two and add it to the attack power.

Of course, if the creature is attacked, it will be dangerous.

However, for those giant dragons, as soon as they flew closer, they rushed towards them, and in a blink of an eye, they passed through the bodies of several giant dragons.

The giant dragon hit by the line of fire just let out a shrill scream, and fire lights emerged from all over his body. He could no longer control his flying body and fell to the ground.

There is no doubt that after the bonus of prayer and rage, the fire phoenix's flame breath has increased by at least three times!

In other words, at this time, the lethality of a fire phoenix is ​​equivalent to the combined attack of three fire phoenixes, and the lethality of fourteen fire phoenixes is equal to the lethality of forty-two fire phoenixes. This lethality is reflected in the fire phoenix, and the temperature of the flame breath increases rapidly, which makes the lethality even more terrifying.

Therefore, any giant dragon hit by the flame breath of the fire phoenix, even one of the golden dragons burned quickly under the flame breath. When they fell to the ground, they had turned into charred dragon corpses!

As soon as they joined the battle, seven of the ten giant dragons were killed by the Fire Phoenix, and the remaining three giant dragons were directly attacked and killed by a lightning mantis! You must know that there are two golden dragons here!

The Thunder Mantis, who received the blessing of two spells, is much more terrifying than the Fire Phoenix.

In the blink of an eye, all ten giant dragons fell!

Cheng Kong was a little regretful. The Fire Shield Technique he released was wasted, but he forgot. After blessing the Furious Technique, he didn't dare to let these Fire Phoenixes fight with the enemy in person. In addition, the Fire Shield Technique was basically useless.

However, this waste is nothing to Cheng Kong.

After the baptism of dragon blood, Cheng Kong's mental power was greatly improved. At present, after summoning the Fire Phoenix and releasing three level 4 spells in succession, although he didn't know how much mental power he had left, he could feel that his mental power was still left, and at least he would not be drained if he released three level 4 spells.

"go ahead!"

After absorbing the evolutionary light balls decomposed by the ten giant dragons, Cheng Kong drove the thunder and lightning mantis to rush in front, followed by the fire phoenix and the archangel, and rushed towards the reinforcements of the Green Leaf City.

Whether it is the thunder mantis or the fire phoenix, they are originally one of the fastest creatures in this heroic world, and with the blessing of prayer, the speed becomes faster.

Cheng Kong, sitting on the back of the Thunder Mantis, almost felt that he was almost unable to breathe.

You should know that Cheng Kong has not felt this feeling for a long time since he evolved.

For Cheng Kong, his extremely powerful body was enough to deal with any acceleration, but the speed of the thunder mantis was several times more than the speed of sound, so that he pulled out the surrounding air.

It is normal for Cheng Kong to be unable to breathe. If this situation is an ordinary person, let alone the damage caused by high speed, just being unable to breathe is fatal.

But for Cheng Kong, this is just a little uncomfortable. Even if he doesn't breathe for half an hour, it shouldn't be a big problem, right?

At such a high speed, the army of Green Leaf City, which was slowly advancing, soon appeared in Cheng Kong's vision.

It is obvious that the previous fall of the dragon had attracted the attention of this army, so when the thunder mantis appeared, more than ten giant dragons that had already taken off the air rushed over.

Faced with the attack of the dragons, the thunder and lightning mantis turned around and fled. The dragons became excited. Compared with the danger of falling, pursuing a timid and cowardly enemy who escaped was undoubtedly a very easy thing.

And these giant dragons don't think the other party can fight against their own party.

As the thunder and lightning mantis chased and fled between the dragon, in a blink of an eye, both of them disappeared into the vision of the army on the ground.

However, this is a disaster for the ground army.

Shortly after the thunder mantis and the dragon disappeared, more than ten fire phoenixes appeared in the sky, and then they cut the untempered Pegasus knights into pieces of minced meat. Then the flames flashed, and flames emerged from the minced meat, turning into balls of fire falling towards the ground.

The first raid of Fire Phoenix alone turned hundreds of Pegasus knights into corpse fireballs, which immediately caused chaos in the army of the Green Leaf City below. Countless arrows shot out into the sky, but after reaching the peak, they fell helplessly.

Faced with the Fire Phoenix that can fly at extremely fast speed, the troops on the ground are simply out of reach. Instead, when the Fire Phoenix dives from time to time, the scattered flames burn a lot of the ground troops to death, forcing the generals leading the team to scatter the army to avoid greater casualties.

Not to mention the arrogance of the Fire Phoenix over the army of the Green Leaf City, it is only said that Cheng Kong rode the thunder and lightning mantis to lead the giant dragons hundreds of kilometers away.

These giant dragons were not stupid. When they saw that they could not catch up with the thunder and lightning mantis, they pulled further and further away. Then, there was a message of help from the generals in the rear, and the giant dragons began to circulate at high altitude to prepare for evacuation.

But at this moment! The lightning mantis turned into a thick lightning bolt, and slashed at the giant dragons. While hitting a giant dragon, the lightning bolt turned into plasma and spread out, and several giant dragons that were not too late to dodge in the future were wrapped.

Just as the lightning mantis turned into plasma, a figure jumped out of the lightning, and in a blink of an eye it jumped under the back of a golden dragon. He reached out and pressed it gently, vibrated more than ten times in an instant, and then jumped out and pounced towards the other golden dragon.

A few seconds later, the first golden dragon exploded inside, and even a scream could not be heard, it turned into a corpse in the sky and splashed out towards the surroundings.

This figure is naturally Cheng Kong. Since the violent magic effect on the Thunder Mantis is still there, Cheng Kong dared not let it take risks, so he took action decisively and activated the resonance force to kill the three golden dragons on the spot.

Of course, if it weren't for the lightning attack of the lightning mantis that disrupted the formation of these giant dragons, Cheng Kong wouldn't have dared to rush forward with more than ten dragon-biting risks.

In less than a minute, all the dragons fell.

After the last golden dragon exploded, Cheng Kong fell to the ground. Fortunately, the thunder and lightning mantis arrived in time to catch Cheng Kong. Otherwise, Cheng Kong would have to fall into the ground. After all, the height at this time was only a few hundred meters. Even if Cheng Kong vibrated the air with both hands, he could not maintain his balance, and the final result would be like that.

Cheng Kong could not give up the evolutionary light balls of these giant dragons, so Cheng Kong drove the lightning mantis to land on the ground.

Not long after, the dragon corpses all over the ground began to decompose into dark purple evolutionary light balls and began to merge into Cheng Kong and the Thunder Mantis' bodies.

Just after absorbing the evolutionary light ball, the evolutionary power in Cheng Kong's body seemed to encounter gasoline with flames, and instantly burst into boiling and climbed to the top in a blink of an eye. A circle of deep purple light shone out from Cheng Kong's body, forming a purple light cocoon.

Evolution began again.

This time, the evolution was done by Cheng Kong deliberately. It was a little short of it before, but this time he seduced the dragon out to fill the power of evolution.
To be continued...