If Xu Dao wants to use this sword weapon to subdue demons, he not only needs to pioneer the evil qi in it, but also needs to re-cultivate the spirituality of the hidden dragon sword, so that he can control this sword like Yu Yangyan.

This is too troublesome, and Xu Dao's time is short, so he doesn't have time to do so.

He thought to himself: "This sword has been polluted by evil qi, and it will take too much effort to regain it back to its original appearance, so it is better to make a mistake ...... wrong."

The evil qi is yin to turbidity, which can corrode the flesh and blood, even if the body of the Gu Hou bird has evil qi, it will be injured, and the hidden dragon sword is sharp, and the lethality is also amazing, if Xu Dao can turn the two into his own use, he may be able to easily kill the Gu Yu bird.

He thought about it carefully, and the plan in his mind suddenly became clear.

Xu Dao can collect the evil qi, use the evil qi as the strength, and the hidden dragon sword as the body, turn it into a flying sword of evil qi, and spray it out to kill the Gu Bird.

As for how to implement and create the Evil Qi Flying Sword, he also had a draft in his heart.

Xu Daoduan sat in the bronze pavilion, ignoring the despair and wailing beside him as nothing, and concentrated on figuring out the layout method of "Bajing Suoyang Zimu Thunder Fire Array" depicted on the copper pillar.

This array can not only be arranged in the ancestral hall, as long as it is thoroughly understood, it can also be arranged between square inches, and even can be used casually, just to see if the Taoist has this ability and materials.

Xu Dao can arrange the formation in a box several feet long, depict the mother array on the outside of the box, and depict the sub-array inside the box, and contain evil qi in the box and place sharp weapons.

Once he takes the initiative to hook the thunder and fire qi in the box, explodes in the size space, and opens another hole, the evil qi and sharp weapons inside will be violently stimulated, slashing the enemy!

The above is easy to say, but he needs to really grasp the formation clearly, so that he can fit the formation on a short box.

Realizing this, Xu Dao did not panic, he reached into his arms and secretly pinched the wordless urn.

With or without characters, Xu Dao can master the "Bajing Lock Yang Zimu Thunder Fire Array" in a short period of time, and can even condense it into a talisman in his soul.

Because the formation is also a spell, the core of its arrangement is to master the formation pattern, and show it with foreign objects in the outside world like a painting symbol.

Xu Dao can draw the formation diagram of the formation in the characterless urn as if he were learning a spell, and then accelerate the speed of formation cultivation.

As for where the rune ink needed to use the Characterless Urn came from, he raised his head and stared at the corpses outside the formation.

Xu Dao groaned slightly, and suddenly stood up, causing a burst of excitement among the mortals in the array.

The cry rang out: "Master! Master is going to kill the demon!"

Without saying a word, he suddenly stepped out of the bronze pavilion, and his whole body flowed vigorously, squeezing the crowd outside the pavilion to both sides, and then walked all the way to the boundary of the courtyard.

Someone cheered: "Respectfully invite the Taoist to punish the demon!"

But Xu Dao stood on the side of the formation to identify it, and suddenly rushed out of the formation, as if he wanted to abandon the formation and flee.

This suddenly frightened and desperate the mortals at the scene.

When Xu Dao's figure disappeared from everyone's eyes for the time being, the Gu Bird outside the formation also moved, screaming and fluttering.

Between more than a dozen breaths, the mood of the people of Guodong County rose and fell, and finally saw Xu Dao returning from the outside, but he went straight to the formation, and his steps were very hurried.

He carried half a horse carcass on his shoulder, not a bird carcass.

The carcass was stiff, the blood on the surface was dry, and unlike ordinary horse carcasses, its skin was covered with fine scales, and the exposed bones were also sulfur-like in color.

This horse corpse is the corpse of the Serpentine Flame Horse.

Xu Dao did not return victoriously by killing the monster, but reluctantly carried the corpse of the demon horse back.

When he saw the corpse outside the formation just now, he thought about using the corpse of the demon horse to draw talismans.

Although this horse was easily killed by him, it was because this horse was forbidden and was assassinated by him.

However, the muscles, bones, skin, flesh, blood and other qi-refining materials on this horse's body are not false at all, all of them are spiritually sufficient and the blood is amazing, which is extremely suitable for use as rune ink.

Xu Dao returned to the formation, and the python energy all over his body was surging, but it was much weaker than when he came out of the formation.

It is said that Gu got the bird's evil qi into the back of his head, and his evil nature increased greatly, and because of the large amount of blood food, it did not even peck at the snake scale flame horse.

But as soon as Xu Dao came out, he was still discovered by it. The two of them did a while, and Xu Dao was accidentally robbed of half of the horse's corpse by it.

After this experience, Xu Dao's idea of killing this demon became even stronger.

Back in the formation, he squeezed into the crowd with a cold face and stepped into the copper pavilion again.

The people in the formation saw that he went out and came back again, and his body was also embarrassed, and they were all shocked.

Some people believe that Xu Dao will definitely help them subdue demons, while others are desperate that Xu Dao is not the opponent of monsters.

But these things have nothing to do with Xu Dao.

He sat back in the copper pavilion, shook his hand, and with a whining sound, the yin qi and evil qi in the eight deep wells in the courtyard immediately bubbled out, gathered outside the pavilion, and enveloped the inside.

The copper pavilion suddenly became dark and miserable, and the people around him didn't know what was going on inside, and they were all uneasy for a while.

And Xu Daozheng was sitting in it, but he was concentrating on cutting the flesh and blood of the horse corpse, and then grinding it into rune ink, and slowly drawing the formation diagram on the characterless urn.

After a few attempts, he finally succeeded in drawing the formation diagram, and then used the fire burning technique to ignite the mane of the demon horse, and directly threw the characterless urn into the flames and burned it.

The uncharacterized basket falls on the horse corpse like a plant rooted in the soil, and immediately and continuously absorbs the nutrients of the horse corpse.

After a quarter of an hour of waiting, an obscure sigil was born.

An hour later, Xu Dao cut brass from the copper pavilion and made a box.

Half a day later, Xu Dao immersed himself in compiling the formation patterns and arranging the formation.

A day's work has passed......

The people of Guodong County have become numb, no longer screaming and wailing, and hunger and death have taken over all their hearts.

And the only copper pavilion that pinned their hopes on them was the constant flash of thunder and fire, the black qi rolling, and the yin qi was thick, and the entire evil cultivator was cultivating evil arts.

But everyone could only stare at the copper pavilion, with the last hope in their hearts.

Maybe in their opinion, Xu Dao in the pavilion is not a good person, but compared to the demons who eat countless people, it is much better.

Suddenly, the entire formation shook slightly.

The thunder and fire qi on the top of the copper pavilion stopped, and the black qi around the pavilion began to dissipate, as if it was being swallowed by something.

I saw Xu Daopan sitting in the pavilion, his face was indifferent, and he was holding a golden thing in his hand.

This thing is a bronze box, four or five feet long, half a foot wide, two or three inches thick, it is the result of Xu Dao's hard work.

It contains the evil qi of the son and mother in the array, and the surface is depicted with the Bajing Lock Yang Thunder Fire Formation, and there is also a hidden dragon sword imprisoned in the box.

When it is done, Xu Dao only needs to open the box, and there will be thunder and fire inside, and the sword weapon will fly out with evil energy, and kill the enemy with lightning speed!

This is a sinister sword box!