Zhang Kai's heart moved, after he picked up this crystal, he found that it was called a magic energy crystal, which was an energy crystal, which could be arbitrarily converted into other forms of energy due to its characteristics, and had extraordinary applicability.

Energy crystals such as Flame Crystals and Thunder Crystals also contain other forms of energy, but they cannot be used as energy directly, and must be loaded with a psionic energy conversion device like a mysterious core.

Unlike other energy crystals, magic crystals can also provide energy to psionic devices without loading them, which increases their value a lot and can be used as hard currency.

A low-level magic crystal can be converted into 1,000 points of energy, which is worth about 2 gold coins!

Zhang Kai put away the low-level magic crystal, he was even more interested in the dark monster, after he walked a distance deeper, he encountered several sharp-toothed demons in a row, some appeared alone, and some appeared together.

Zhang Kai also discovered a little rule by killing these Sharp-toothed demons, like the probability of a single Sharp-toothed Demon dropping a magic crystal is relatively low, and only one magic crystal will drop if you kill three or four.

And after letting the Sharp-Tooth Demon devour the other dark mist, the mutated Sharp-Tooth Demon is almost bound to explode the Magic Energy Crystal, and a low-level Magic Energy Crystal is worth at least two gold coins, and this drop level is simply terrifying!

Zhang Kai sometimes deliberately dragged a sharp-toothed demon to attract another sharp-toothed demon, striving to make it devour the mutation, so as to increase his harvest rate, Zhang Kai harvested five low-level magic energy crystals along the way!

But Zhang Kai is also prone to accidents when he does this, after he accidentally attracted three Sharp-Toothed Demons, and when the third Sharp-Toothed Demon absorbed the dark mist on the previous two Sharp-Toothed Demons, it actually broke through directly to level 50!

Every time the level of the monster exceeds 10, the attribute can be greatly improved, although it does not reach the level of the third order, but it is also very terrifying.

The strength attribute of the sharp-toothed demon warrior has made a qualitative leap, and it slapped its claws on Zhang Kai's decapitation magic sword, directly slapping Zhang Kai back again and again, the long sword in his hand was almost unstable, and the sharp-toothed demon warrior was already able to suppress Zhang Kai's strength!

Zhang Kai was forced to retreat by the continuous attacks of the sharp-toothed demon warriors, and when the strength attribute was suppressed, it was difficult for Zhang Kai's attack speed advantage to turn back the situation, mainly because Zhang Kai tried to fight head-on at the beginning, which fell into disadvantage.

If it is an ordinary fast sword flow swordsman, they will never confront the Sharptooth Demon Warrior head-on, they will use the attack speed advantage to lure the Sharptooth Demon Warrior to attack, and then use the gap to attack the Sharptooth Demon Warrior, slowly grinding it to death.

Zhang Kai was not in a hurry, he waited for the round of outbreak of the Sharptooth Demon Warrior to end, and then used brute force to slash the Sharptooth Demon Warrior back, and with Yang Yewu's Holy Silver Crossbow Arrow, after suppressing the attributes of the Sharptooth Demon, it was a crazy attack, and he quickly killed it.

"I actually dropped two magic energy crystals, which is not bad."

Zhang Kai put away his thoughts, he continued to explore the depths of the Sealing Demon Secret Realm, he walked hundreds of meters, but he never encountered other dark monsters.

This made Zhang Kai a little strange, he had encountered a wave of sharp tooth demons almost every dozen meters before, and this silent situation made Zhang Kai more vigilant.

The black fog around him is getting thicker and thicker, Zhang Kai always feels as if something is following him, and the other party is lurking in the darkness, and will give him a fatal blow at any time.

Just as Zhang Kai was trying to find the lurking enemy, Zhang Kai encountered a Sharp Tooth Demon, and he had to concentrate on dealing with the Sharp Tooth Demon in front of him.

Zhang Kai was in the middle of a fierce battle with this Sharp Tooth Demon, he suddenly felt a malicious intention, Zhang Kai reacted very quickly, he used the Alpha Raid Skill regardless of it, and while dodging this attack, he also slashed the Sharp Tooth Demon.

After Zhang Kai landed, he locked on the enemy who had just attacked him, which was a monster like a deformed baby, its name was Demon Boy, and its head was as big as a fight.

The Demon Boy relies on the elusive stealth ability and sneak attack ability, its arm can be turned into a short thorn, can easily break through most of the armor, and the ability to ignore defenses is very outstanding.

The demon boy couldn't hit it, it immediately urged the dark mist on its body, and wanted to enter the stealth state again, Zhang Kai smiled: "I've been looking for you, how can I let you run away easily!" ”

Zhang Kai activated the Eye of Death, and his ability to penetrate the void locked the demon boy, even if the other party entered the invisible state, Zhang Kai was still able to see a silhouette and would not let it disappear from view.

Zhang Kai ignored the sharp-toothed demon who rushed up, and the dark suppression shrouded the demon child, allowing it to be suppressed in place.

Yang Yewu put on the hunting mark, which affected his stealth effect, and his body shape was clearer.

Zhang Kai used the phantom raid to pounce on the demon boy, and he instantly came behind the demon boy, and the nameless brick slapped on its head.

Similar to the powerful power of the Sharptooth Demon, the Demon Boy has a very terrifying speed, and if he doesn't control it, Zhang Kai really won't be able to catch it.

The powerful thing about the demon boy is the sneak attack ability, after being caught by Zhang Kai head-on, it is even more unbearable than the sharp-toothed demon, and it is directly suppressed by Zhang Kai, and after a few swordsmanship skills, the demon boy's health has dropped by nearly half.

The Demon Boy also used the dark mist on his body, and unlike the Sharptooth Demon, all the dark mist on the Demon Boy's body was sucked into the short thorns of the Demon Boy's hands, and it suddenly erupted, stabbing out seven black stabs in a row!

This is the Demon Boy's Dark Thorn skill, each Dark Thorn must be a critical hit, plus the number of attacks and base damage of the Dark Thorn, if all seven Dark Thorns hit the enemy, it is enough to kill MT in seconds!

The dark mist of the Sharp Tooth Demon is used to restore health, and the dark mist of the Demon Boy is used to increase explosive power, each of which has its own advantages and disadvantages and characteristics, Zhang Kai feels that this method of the Demon Boy is even more terrifying, and he will be hated if he is not careful.

Fortunately, Zhang Kai was careful, and his body had already activated the defensive position of breaking the water flow, and five of the seven dark thorns were blocked, and Zhang Kai was only stabbed twice.

-4120！

-4356！

With just two dark thorns, Zhang Kai was knocked out of nearly 9,000 points of blood, and if all seven dark thorns were hit, Zhang Kai might also be killed in seconds!

Zhang Kai broke out in a cold sweat in his heart, he used the thunder method, counterattacked the flame burst skill and shot, and blasted the demon boy's health to the limit in one fell swoop, and then Zhang Kai cut off the demon boy's head with a decapitation skill!

At this time, the sharp-toothed demon next to it also rushed over, and after absorbing the dark mist of the demon boy, its level increased, and even the claws on its hands became sharper.

Zhang Kai found that the attack speed and attack power of this sharp-toothed demon had been significantly improved, and it actually obtained some of the abilities of the demon boy.

Zhang Kai's heart moved, he tried to fight with the new Sharp Tooth Demon, after understanding its characteristics, he decisively killed it, and after cutting off the head of the Sharp Tooth Demon, Zhang Kai once again obtained a low-level magic energy crystal.

After Zhang Kai put away the magic crystal, he continued to explore the depths of the Sealed Demon Secret Realm, and he encountered several sharp-toothed demons and demon boys.

even encountered a joint sneak attack by three demon boys, and Yang Yewu was almost seconded.

Liu Shou stood next to him with a smile, and he didn't know what means he used, those demon boys ignored him, he was watching the play like an outsider, just swallowing melon seeds.

It seems that this pit will really not help, Zhang Kai and Yang Yewu can only rely on themselves to solve these dark monsters.

Zhang Kai had to keep consuming mana to activate the Eye of Death to prevent the Demon Boy's sudden sneak attack.

After walking hundreds of meters into the secret realm of sealing demons, Zhang Kai encountered another kind of monster called Explosive Demon.

This kind of monster has a fire or thunder element, has a powerful magic damage ability, and its explosive power is simply stronger than that of the demon boy, and it is simply a turret.

If Zhang Kai is a little easier to deal with, relying on his powerful magic resistance, he can face the spell of the fire demon explosion and kill him.

And the thunder blast demon is much more difficult to deal with than the fire blast demon, their thunder spell has a super paralyzing ability, you can slow down the target, while moving to cast spells, Zhang Kai was actually a thunder blaster at the beginning of the kite.

Zhang Kai still used the Phantom Raid and Alpha Raid Rush skills before he found an opportunity to get close to the Thunder Blaster and kill it with the most ferocious output.

Both the Thunder Demon and the Fire Demon Demon will drop the corresponding Elemental Crystal, and with the addition of the Magic Energy Crystal, the explosion rate of the Demon Explosion is higher than that of other dark creatures.

Zhang Kai is also paying attention to collecting these two types of elemental crystals, and the fire crystals can be devoured by the mysterious core, so that they can be upgraded as soon as possible.

When Zhang Kai killed more than fifty dark monsters, he came to a gray light curtain, and inside the light curtain, there was an even thicker black mist.

A black shadow suddenly pounced from the light curtain, and when Zhang Kai wanted to take a defensive posture, the black shadow crashed into the light curtain and was directly bounced out.