Yes, what's there to worry about? The fox-eyed man raised a charming smile and drank glass after glass of wine, just like drinking water. The lord of the demon city has already started to play his trump card, and his plan has just begun!

It was just an insignificant subsidiary plan, but it forced the opponent to show his trump card. What else is there to be dissatisfied about? The fox man's charming smile shocked everyone. After being startled, the men turned their eyes away one after another, and naturally complained in their hearts. The women, especially the clear-skinned woman who just spoke, almost glued their eyes to the fox-eyed man, all with infatuation in their eyes and accelerated heartbeats.

Although the city defense formation successfully kept the monsters out and provided the monks on the battlements with a good attacking environment to attack the enemy while ensuring their own safety, the city lord did not seem happy at all, and his expression was worried and gloomy.

If that fox-eyed military advisor could think of it, how could the city lord not think of it? But in the situation just now, they were forced to open it, otherwise the city would be in chaos, and how could the monks on the battlements fight back with peace of mind? This was really a brilliant move! The other party was dispensable, but they had to guard against it, which was really aggrieved.

But the others didn't have so many thoughts and just started fighting.

With the protective shield as a safety guarantee, the people inside can attack the monsters, but the monsters' attacks cannot penetrate. It is simply like standing still and shooting at targets.

Yang Lan'er would occasionally take action, just to practice her skills, but she was not very interested in this kind of melee. Anyway, the monks on the battlements could suppress the monsters with firepower and prevent them from getting close.

"Tsk tsk, the energy consumption of activating this city defense formation must be quite high!" Yang Lan'er raised her eyebrows and sighed.

At present, it seems that all attacks from monsters below the Jindan stage can be defended. At least, those rushing up now are not even from the Lingji stage.

And the range is so large. Although it is only for defense and cannot counterattack, the effect is already very strong. It would be strange if the consumption is low.

"At least one thousand and eight spirit stones, and it can only last for one hour." Xuan Yi gave an accurate number as soon as he spoke, and it was obvious that he had done some research on the formation.

“……”Yang Lan’er was shocked.

Although she guessed that the consumption would be high, she did not expect that one thousand and eight spirit stones could only last for one hour. With twelve hours in a day, wouldn't that require more than ten thousand spirit stones?

Emma, ​​the novel mentioned that this battle lasted for several years. If Hao Xinqing hadn't accidentally brought Inuyasha into the underground and quietly devoured the corpse of the divine beast, it would be unknown when it would have ended.

During this process, the city defense formation was not destroyed and was kept activated without a single second of pause. How many spirit stones did this alone cost?

Thinking about it, Yang Lan'er was shocked. No wonder they said war is a battle of attrition. It was too scary.

"This is just a low-grade spirit stone. I don't think the city lord would use low-grade spirit stones to activate the formation. Otherwise, he would have to change it every hour, and it might be too late." Xuan Yi chuckled, looking extremely calm.

"That's true." Yang Lan'er nodded.

If it were replaced with high-quality and top-quality spirit stones, the quantity would be easy to determine.

It is a pity that many cultivators have probably only seen mid-grade spirit stones in their entire lives. Top-grade and top-grade spirit stones are very rare.

Of course, this kind of consumption is not just borne by the Demon City itself. For the sake of spoils, all major sects will also make contributions. It’s just spirit stones, so that’s easy to deal with.

Each major sect has its own spirit stone veins, and many have several. This thing is really the easiest to deal with.

This stalemate lasted for a month, and by the end Yang Lan'er felt almost numb.

The mechanical throwing spell is to kill a large number of densely packed monsters below with one hit.

Although monks don't sleep, they need to recover. Those with elixirs are fine, but those without can only meditate to recover, which at least takes time.

Naturally, a tacitly coordinated shift system was automatically arranged.

The independent cultivators are the poorest among all the cultivators.

Unless one has a strong background and family, no one would be willing to use their own elixirs. Even if the City Lord's Mansion has certain material support, no one would be willing to waste elixirs unless it is a crisis.

Therefore, independent cultivators of the same level are better adapted to battlefields and survival in the wild than disciples from sects. In addition to experience issues, this is also a factor.

Taking fewer pills means taking in less poison into the body. Now that the pills that can expel poison have been lost, this factor is no longer taken seriously by many people.

They thought that if they didn't take the elixir, their cultivation wouldn't improve, and their lifespan would be limited, so it didn't matter whether they had elixir poison or not. As a result, this vicious cycle was gradually forgotten.

The reason why casual cultivators can get this kind of benefit is purely because they are reluctant to give it up, but no one pays attention to the real reason for this benefit.

Yang Lan'er discovered that the people in Kongchen Palace didn't take elixirs either, they just needed to use spirit stones to restore their true energy.

After asking casually, Yang Lan'er found out that the Qingyuan Pill, which had been passed down during the heyday of cultivation and was used to remove impurities and toxins from elixirs, had truly been lost.

With a slight smile, Yang Lan'er's money-grubbing mind was rumbling loudly. This kind of prescription, the inheritance from the ancestors must be the key to be preserved. She couldn't refine it before because her strength level was not enough. Now that she is in the middle stage of spiritual silence, it is just right.

After coming out of the Sea of ​​Clouds and Mist, Yang Lan'er has been busy and has not practiced alchemy properly. However, before the war, Qin Muyan stayed underground for two months, so she also stayed in the space to continue learning.

Yang Lan'er attached great importance to Qingyuan Pills from the very beginning. She thought that even if there were many of them in the cultivation world, they should be a scarce commodity. Unexpectedly, there was no real monopoly at all.

Then the large number of Qingyuan Pills that she made in the space are simply top-grade spirit stones.

The battle was now at a stalemate, and Yang Lan'er didn't stay on the battlements all the time, but the city was more lively than ever.

Merchants from other places came to purchase raw materials, while others directly sold their spoils. Anyway, there was never a shortage of monsters on the streets.

In fact, due to the abundant supply, the price of monsters is now lower than usual.

However, the price of the special materials on the monster's body remains high.

Not only Yang Lan'er was surprised by this, but also the major sects, city lords, and some respected masters were all upset, because this time, the monster actually used a cruel move on them again.

Once a companion dies, the nearby monsters will actually take away the most valuable things from the companion's body.

There is no use for them to be kept, but they obviously don't want to leave them to human monks.