According to the basic concept of the "Five Elements of Yin and Yang", in the "Yin and Yang Technique", the thunder qi belongs to the wood qi in the five elements, as long as the wood line charm and the technique symbolizing the attributes of the wood are changed, then the thunder spell can be derived, and the thunder spell that is famous for its power in the "Yin and Yang Technique" can be used.

In other words, there is no doubt that thunder is a derivative of wood, and its essence is wood.

Among the five elements, it is water qi that can give birth to wood qi.

Dragons like the Big Dipper themselves are formed by high-purity, negative water vapor.

This is where dragon water comes from.

As long as it is not a special case, then the dragon qi is water gas, and it is also a negative water gas of extremely high purity.

In this way, when the thunder qi is boosted by the dragon qi, its power will appear like a sudden explosion of water vapor, showing a terrifying explosion.

Now, the Cross Sutra Thunder Method cast by Luo Zhen was born in the dragon qi phase on Beidou's body, showing extremely amazing power.

The sound of thunder continued to emerge from the battlefield, rendering the entire battlefield into a thunderous thunder pool, exuding dazzling brilliance.

In that thunder pool, the thunder was like the dragon thunder waved by the dragon god who controlled the weather, constantly scurrying, instantly covering the range within a radius of a kilometer.

That power is definitely comparable to the A+ level military treasure, without any suspense.

In such a violent thunder, Beidou rushed out of it and gradually rose into the air, but his body was shaky, and the position of his abdomen kept sprinkling golden particles, making his whole body still produce a splitting reaction, which was extremely unstable.

If Beidou is the demon of Luo Zhen's absolute contract, then this injury should be able to recover quickly by consuming magic power, but unfortunately Beidou did not conclude an absolute contract with Luo Zhen, even if Luo Zhen did it on purpose, so that he could use Beidou's spiritual power and dragon energy, and he didn't need to use all the consumption like the demon to bear by himself, but there were advantages and disadvantages, which could only be helpless after all.

Thereupon...

"Come back! Beidou! ”

Luo Zhen summoned Beidou back.

"Aang!"

Beidou let out an unwilling dragon groan, but he still obediently obeyed Luo Zhen's order, lifted the materialization, and disappeared above the battlefield under a burst of light particles.

"Whew... Whew..."

At this time, Luo Zhen also landed on the ground with Matthew, and as soon as he landed on the ground, he immediately knelt down on one knee, and his breathing became a little disordered.

"Senpai!"

Matthew hurriedly supported Luo Zhen, originally worried that Luo Zhen was injured in something, but after a closer look, Luo Zhen did not feel any discomfort except for his breathing becoming chaotic and his eyes were tired.

With this symptom, Matthew knew very well what was going on.

"Is the magic running low?"

Yes.

Luo Zhen's magic power has begun to show symptoms of insufficiency.

"No matter how you say it, you have to provide it to the Seven Riders, and you have used so many spells, your magic power should have been exhausted a long time ago."

You know, if you change to an ordinary master, it is already very reluctant to provide magic power to one rider, and if you need to provide it to two riders at the same time, it will definitely be sucked dry in an instant.

Luo Zhen can afford to provide the magic power of the Seven Horsemen, and even have the spare strength to use magic and spells, which is already a great feat.

Even if the basic mana consumption can be provided by the Chaldeans, Luo Zhen will naturally not be satisfied with this, and has always continued to provide his magic power to the servants who have contracted with him, so as to improve their strength.

To put it bluntly, Matthew and others have been able to support themselves in this mythical war until now, and Luo Zhen is definitely indispensable.

"Now, no matter how much you say it, it's time to reach the limit."

Matthew was quite worried and helped Luo Zhen.

Such a Matthew simply doesn't know.

"If I had to say that my mana was exhausted, I don't know how many times it had been exhausted."

Luo Zhen couldn't help but smile bitterly in his heart.

In fact, since the beginning of the war, until now, Luo Zhen has exhausted his magic power several times.

The reason is simple.

"What kind of battles are the servants of the rest of the battlefield fighting?"

Luo Zhen thought so more than once.

The reason why its mana is depleted several times is in the rest of the battlefield.

For example, Hercules was fine at the beginning, and he basically didn't need to go to the point where Luo Zhen provided magic to strengthen him, but for some reason, from the middle point, Hercules seemed to be caught in an extremely bad battle, and the number of regeneration times of his treasure seemed to have been decreasing, which made Luo Zhen startled, and hurriedly transported a large amount of magic power over to improve his combat power.

It's the same on Karna's side, if this unconventional hero is fully open, just using a flame comparable to the fire of the sun is quite demonic, and the average lord provides him with such a battle for a few minutes at most, but Luo Zhen has been providing it, you can imagine how much magic power was consumed, and then this big hero of India didn't know what trump card he used, but he actually took away most of the magic power from Luo Zhen in one go, and the consumption was so great that he felt palpitations when he thought about it a little.

As for Rama, not to mention, Luo Zhen vaguely felt that he was seriously injured and almost returned to the seat, and hurriedly provided a large amount of magic power to stabilize his injury.

In addition, the Argo is now facing the pursuit of several dragons, Medea and Atalanta have been giving their best, Matthew has also maintained the liberation of the treasure in order to fight against the three-headed dragon before, and Skaha, who is also a master of mana, dealing with so many dragon species, if you don't support them with all your strength, no matter how strong you are, you have to fall.

In this way, Luo Zhen still had to provide magic power for the Golden Crow and Jade Rabbit, and summoned so many bipedal flying dragons, and now he also used such a domineering spell, no matter how much magic power he had, he would have to lose it.

Thanks to this, Luo Zhen has already activated the secret method of the [Red Wing Array] several times, consumed blood, and replenished his magic power, otherwise, unless it is the infinite magic power of the "Holy Grail", otherwise, no amount of magic power can withstand this consumption.

Fortunately, compared to the explosive use of ten times more mana, the secret method of slowly opening the "Red Wing Array" like this to replenish one's own mana consumption is relatively low, compared to the usual need for less than one-tenth of the blood to replenish the mana, Luo Zhen has been able to survive until now.

But no matter how low the consumption is, it is also consumption.

Luo Zhen had already put a blood tonic charm on himself so that he would not lose too much blood, but now he was tired enough to choke.

"For the time being, let's absorb some spiritual power from Beidou to replenish the magic power."

Feeling that his body was already a little overdrawn, Luo Zhen dispelled the idea of activating the [Red Wing Array] again, and instead absorbed spiritual power from Beidou, who could no longer fight, to replenish it, and even secretly held the talismans of the Valkyries to draw spiritual power from them.

Shikigami without an absolute contract has this benefit, and it can be used as a savings battery for magic power, and Luo Zhencai deliberately did not conclude an absolute contract with Beidou and the Valkyries.

It's just that...

"What's next?"

With the ability of the "Heart Eye" to see through the movement in the thunder dancing in front of him, Luo Zhen couldn't help but sigh.

And then...

"It's really yours, I didn't expect you to have this level of strength, I admit that I still underestimate you."

With these words, a hideous and evil figure slowly walked out from the battlefield full of thunder in front of him.

"Biliba...! Bilibili...! ”

Slight arcs of electricity pulsed around his body, causing smoke to smoke all over his body, and various parts of his body to become charred.

Obviously, this time, the other party suffered a lot of damage.

But...

"Didn't you defeat it after all?"

The wry smile on Luo Zhen's face was even stronger.

"Uhhhhhh

Matthew's face also turned slightly pale.

Looking at the two of them, the charred Ku Chulin smiled.

Laughing wickedly.