The cheating boy plays around in the world of immortal cultivation

"If the outer defense is unfortunately breached, please retreat to the nine array eyes of the middle defense in time, and then preside over the middle defense of the mountain protection array. Although we have arranged disciples above the 9th level of Qi Refining at the middle defense array eyes, the effect will naturally be better with you." Hai Laodao followed.

He is now responsible for the safety of the entire mountain gate and has the right to arrange defense matters.

"In fact, now with the help of the 2,000 middle-grade spirit stones lent to the mountain gate by Junior Brother Yuan, the nine array eyes of the outer layer have become too strong invisibly. The Black Moon Gate may have been able to break through our outer defense before, but now with sufficient middle-grade spirit stones, it can quickly replenish the spiritual energy consumed by the array eyes. The Black Moon Gate may not even be able to break through our outer defense." The elder said excitedly.

"That's right. The attack and defense of the mountain protection formation this time mainly depends on the amount and quality of resources on both sides, especially the amount and quality of medium-grade spirit stones."

"When the Black Moon Sect comes to attack the mountain protection formation, although they will also prepare medium-grade spirit stones to activate the spiritual energy cannon, the number cannot be as much as we have prepared. So as long as we master the use of medium-grade spirit stones and keep the center of the formation from being breached, we may be able to defend the outer defense." Hai Laodao continued.

"Okay, then everyone will disperse. After completing the distribution of medium-grade spirit stones at night, please ask all elders to take their positions and go to the outer defense center of the mountain protection formation they are responsible for to prepare for battle. They must be in place before midnight tonight!" The elder said seriously, and all the elders followed his order and left.

After a while, only Yuanxiao, Hai Laodao, and the elder Wu Sheng were left here, and the atmosphere immediately relaxed.

"How is it, are you satisfied with this matter?" Hai Laodao smiled, and then handed the IOU to Yuanxiao. The elder recalled the reactions of the elders just now, and he couldn't help laughing even though he was usually serious.

Yuanxiao took the IOU and put it into his storage ring, then said to Hai Laodao: "What is the spiritual energy cannon that Brother Hai just mentioned?"

"The spiritual energy cannon is an offensive magic weapon specially used to attack the mountain protection formation. It is usually made of a mixture of black gold and refined iron. Runes are usually engraved on the outside of the barrel, and small formations are usually set up inside the barrel. These runes can guide the spiritual energy to run and attack. These small formations are to increase the spiritual energy. The combination of the two can make the spiritual energy shells have stronger attack power." Hai Laodao explained.

As expected, an old man in the family is like a treasure. Hai Laodao has a lot of knowledge and knows a little bit of everything.

In fact, Yuanxiao forgot one person. The one with the most knowledge should be Wu Laomo.

Putting aside his cruelty and belligerence, Wu Laomo knows a lot about astronomy and geography, spiritual insects and monsters, secret skills, and the stories of the three races of humans, demons and monsters, but few people have the opportunity to ask him. Even his opponents, the old scholar from Donghaizhou and Taoist Sikong, admired Wu Lao Mo's complicated knowledge!

"The energy source of the aura cannon is aura?" Yuan Xiao guessed. Since it is called aura cannon, it must be related to aura.

"Yes, the attack energy source of the aura cannon is aura. It can be provided by cultivators or directly provided by spiritual stones." Taoist Hai Lao explained in detail.

"If the aura is provided by cultivators, then when using the aura cannon, the cultivator needs to input the aura in the body into the barrel, and then activate the small formation in the barrel to convert the aura into powerful attack energy, which is fired in the form of aura bombs or aura beams, thereby causing strong range damage to the mountain protection formation or the cultivators on the opposite side."

"This kind of aura cannon consumes a lot of aura, right? How many shells can a foundation-building cultivator fire?" Yuan Xiao asked with great curiosity.

"Foundation-building cultivator? A foundation-building cultivator can't even fire a single shell. The weak spiritual energy in his body can't activate the spiritual energy cannon. If it were a Jindan cultivator, he might be able to fire the spiritual energy cannon two or three times, even if he exhausted all the spiritual energy in his body, but he would be exhausted after that, and his combat power would be greatly reduced in a short period of time. If he met an opponent who was also a Jindan at this time, he would suffer a great loss, and his life might not be saved." Hai Laodao laughed.

"So, in actual combat, the spiritual energy cannon can basically only rely on spiritual stones to launch attacks?" Yuanxiao asked. Since the cultivators can't bear the spiritual energy consumption of the spiritual energy cannon, they can only rely on spiritual stones directly.

"Yes, and it must be at least a medium-grade spirit stone to activate the spirit cannon. Low-grade spirit stones cannot be activated at all. Therefore, firing the spirit cannon requires constant consumption of medium-grade spirit stones, and when our mountain protection formation is attacked by the spirit cannon, we also need to use medium-grade spirit stones to continuously repair the formation."

"So, the spirit cannon and the mountain protection formation are both monsters that consume medium-grade spirit stones. Sometimes the victory or defeat of attack and defense depends on who has more medium-grade spirit stones!" Hai Laodao laughed.

"Then this time, how many medium-grade spirit stones do you think the Black Moon Sect can bring? Can it be more than us?" Yuanxiao asked.

"The Black Moon Sect has only recently surpassed us in high-end combat power, but its mountain gate is not rich, and is even poorer than us, so it has the idea of ​​robbing our Wumeng Mountain spirit stone mine. So even if the Black Moon Sect comes prepared this time, the medium-grade spirit stones it carries will still not be many, and it is definitely not as sufficient as we have here." Hai Laodao said confidently.

"On our side, we have more than 2,000 mid-grade spirit stones that you lent us this time, plus the 700 to 800 mid-grade spirit stones that have been stored in the mountain gate's warehouse for emergency use over the years, a total of nearly 3,000 mid-grade spirit stones. The Black Moon Sect cannot have so many. It is estimated that they only have 500 to 600 mid-grade spirit stones, or 700 to 800 at most!" the great elder continued.

Yuan Xiao nodded silently, and his confidence increased greatly. In fact, Yunhaimen does not only have 3,000 medium-grade spirit stones available. If it really comes to a critical moment, Yuan Xiao can still take out a lot of medium-grade spirit stones, but there is no need to say it now.

"Brother Hai, Brother Wu, does our sect have spiritual energy cannons? In addition, if we use high-grade spirit stones to stimulate the spiritual energy cannon to fire spiritual energy bombs, what will be the power?" Yuan Xiao suddenly asked, as if he remembered something.

"In the early years, there was a spiritual energy cannon in the mountain gate warehouse, but it has not encountered a mountain gate attack and defense battle for a hundred years. It has been damaged due to years of disrepair. What a pity!"

"The spiritual energy cannon normally uses medium-grade spirit stones, which is already powerful; if it uses high-grade spirit stones, the power may be increased to several times or even 10 times the original. It may only take a few spiritual energy bombs to blast a big hole in the outer defense of a certain mountain protection formation." The elder said.

"Wouldn't it be very dangerous for us?" Yuan Xiao was shocked.

"Brother Yuan, there is no need to worry. Top-grade spirit stone mines are extremely rare in the world of immortal cultivation. Even if there are any, they are in the hands of the top sects. There are almost no top-grade spirit stones in circulation on the market. Even if there are a small number of top-grade spirit stones in circulation, they are limited to those top masters. Only cultivators at least above the fusion stage can have top-grade spirit stones."

"The Black Moon Sect is the same as our Yunhai Sect. They are both small sects that are not in the mainstream. It is impossible for them to have top-grade spirit stones." The elder answered.

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