After considering the cost, Chu City found that Wang Longyan cannons could only be set up in large fortresses. The basic array relied on large-scale energy equipment, and the barrel for releasing magic needed to be replaced frequently. It was about 10 to 15 times fired, and it was basically abandoned. In this way, the cost of launching the undead dragon fire gun is comparable to the sixth level scroll.


    The advantage is that the direction and attack distance are longer, and the power is strong enough. The disadvantage is that the scroll can be carried with you. The undead dragon fire gun can only be fixed on the huge array.


    Usually, the use cost of fixed position equipment is only one fifth to one tenth of that of the reel. Even if the technology is not up to standard, it is at least one third of the cost. It will not be higher.


    If the cost of using the scroll is the same, it has to be the result of continuous improvement of technology and overcoming many difficulties.


    After calculation, Chu city didn''t want to give up. The biggest advantage of the undead Longyan gun is that the undead or necromancer can control the second level or above, while the sixth level scroll? You need at least level 5 necromancer to use it.


    Test it on the ash throne first, and you can do it by green.


    When the target of Chu city was put back in the distant camp, the speed of the plague army was not slow. When it approached 500 meters away from the camp, it was found that the artillery in the camp did not mean to start. However, the plague army still did not dare to use a dense formation. It was still a small group scattered by small teams. It was necessary to ensure that the enemy''s artillery fire could cover a small team, that is, 40 combat units.


    Chu City and Luo Yan are standing 500 meters away from the camp. This distance is usually the extreme position of powerful magic crossbow attack. Although the killing power of magic crossbow is not as good as that of catapult, its penetrability is excellent. Even if it is legendary, it can''t wait for others to shoot with armor on. Each attack will consume its own magic power.


    Some magic crossbows have special armor breaking devices, or arrays, runes, which have a chance to penetrate the mage''s magic armor.


    Daxia there, designed a dark yellow crossbow, the probability of breaking armor reached 3%.


    This armor is not divided into physics and magic, as long as it is a special protection, can not rely on normal attack penetration, there will be such a probability. Three percent doesn''t sound like much, but in a battle line, a 400 person team will launch a Xuan Huang crossbow at the same time, which is almost 100 percent.


    Not to mention the xuanhuang crossbow itself is a weapon that can reach level 4. It was originally designed for legendary weapons.


    The zero magic Lord came up to report: "count, our small magic catapult is the smallest model, with a straight-line range of only 800 meters, or 1200 meters. In addition, the enemy''s wall has a formation, the range of all attacks will be reduced too much after crossing the wall. Our small magic catapult can''t hit their guns."


    Chu City understood, if you don''t kill the artillery, you can''t attack intensively.


    There are indeed arrays in the plague Corps. A brigade is not afraid of legendary attacks. There are many legendary plague creatures in the brigade. However, magic cannons are not human attacks. The attack frequency is higher than that of human mages, and their power is also great. It is not necessary to consider the situation of magic exhaustion.


    If you compare the manpower consumption with the opponent''s artillery, it must be you who suffer.


    The other side knows that the artillery attack effect is not very good, simply do not attack, unless you attack the city.


    There are thousands of tactics in the world, and there are no fixed rules. If Chu city wants to besiege each other, it also needs to worry about whether the other side has reinforcements, or whether the other side guards the cemetery and has a deeper space door. If the other party delays time and does not attack, the other party will seize the resources of the relics. Even if he turns back to fight down the cemetery, he will lose his meaning.


    Chu City thought, let zero magic Lord exploratory attack, first to create some pressure on the other side.


    From the soul fragments absorbed by plague organisms, Chu city didn''t get much information, but it was also known that this was an adventurer from the golden continent, from a noble force.


    On the mainland, it is better to get along with a pair of golden beasts, which is basically the same as that of the aristocrats on the mainland. Although not very good, but one can at least normal communication, one is the naked power first.


    Since strength is the first, then your own strength is good. Should you talk with your fist?


    Because the blood stone at the entrance of the ruins is as big as the mountain peak, the city of Chu didn''t want to negotiate with the other party. He sent out his own information. The king of thorns had sent the throne of ashes. The sky grass was in a great hurry. He took a full array of elite troops and all the legendary elite that he could bring.


    The elite pestilence army has higher combat effectiveness and stronger sustained ability. It is much more powerful than the thorny mercenaries outside Chu city.


    A large group of pestilence creatures sprang up and divided into ten small groups. The formation spread out like a modern army, but there was no chariot cover or heavy weapons. The plague angel in the air took out magic muskets and aimed at the long-range arms on the head of the city.


    When the pestilence gets close to the three hundred meters, the big guns don''t move at all.


    "Count, we still lack the arms to attack the city." The zero type magic Lord used the voice of admonishment to the Chu City Road.


    "There are giant earth Diggers in the desert. After getting the gene, I guess the sky grass will design it?""I mean moving firepower, my Lord. It''s not a solid Castle yet. We can only fill the gap in the terrain with our lives."


    "Originally, the pestilence regiment was designed for field operations, and the siege was left to the human Legion."


    "But pestilence creatures are not afraid to die. Shouldn''t such a task be carried out?" The magic Lord has some doubts. They are loyal, fierce and fearless of death, and siege is the most lethal way of fighting. It should be handed over to them, but why should it be handed over to the human army?


    Chu Cheng thought for a moment and said, "it''s true at the moment, but in the future, the city is nothing to rely on. The real military town will become a hedgehog, and then it will be the age of competition for firepower. What heavy firepower we have now will be meaningless in the future. "


    The magic Lord was immediately convinced that they didn''t need training. They could master any new fighting methods as long as they were implanted.


    This is the comparative advantage between plague creatures and human beings, not the fear of death.


    Some people are not afraid of death, such as those fanatical believers.


    Chu Cheng said: "if we have a giant bronze statue, 20 meters or 30 meters in size, we can attack the city wall against the magic artillery. If we go down with one blow, we can clear the obstacles, and then the army behind us can rush through. The technique of colossus can be found in Penglai sect. It''s not too advanced. I''ll buy it with Qingcheng. But in the future, can the Colossus block magic cannons and resist the attack of strong men with six levels and seven levels? "


    The zero magic leader said, "now?"


    "If exploratory attacks don''t work, I''ll organize a legend to attack the wall, and you''ll be able to keep up with the big troops in the back."


    "Count, you can also use the dragon''s skull."


    Chu City nodded. He saw ten teams covered with enemy fire, guns, bows and crossbows, and all kinds of magic. The attack was defeated, and many soldiers were injured and their lifespan was damaged.


    Luo Yan said, "old rules?"


    Chu city asked: "you really vigorous recovery how?"


    "It''s 70% recovered. If you do it again, you won''t lose your fighting power. I still have purple jade paste."


    "Wait a minute. After opening the wall, the enemy may have stronger individuals, and you need to suppress them." The city of Chu is very cautious. Luo Yan''s swordsmanship, which limits the enemy in a wide range, can block the space. It has super explosive power, or it can be fired instantly. Of course, the cost is not small.


    Attack once, about 60% of her true gang will be consumed.


    She had to save at least three realms Gang, so there would be no danger, because after leaving three realgar Gang, she could take Ziyu ointment to recover her strength while fighting.


    The true vigorous consumes too much, recovers more slowly, even takes the medicine effect not to be good.


    On the contrary, it''s Chu city. It only takes 15 seconds to gather together and consumes 20 / 50 of the magic pool. He really wants to attack this camp. He doesn''t even need Luo Yan''s help. As long as he condenses the dragon''s head for 30 seconds, the opponent''s array can''t be defended. That''s the level + 2 terror.


    Of course, it''s useless to fight alone. How can a strong man of seven levels let him gather the dragon''s head for 30 seconds?


    It''ll kill him in a second.


    However, Chu city is an absolute fortress mage in battle, which is why he doesn''t care about the enemy. After all, such a camp is not a magic tower.


    Thinking of this, Chu Cheng said: "you don''t have to hand, I destroyed the wall in front of me, you are now guarding me, I want to reserve strength for 30 seconds."


    "Is that ok?"


    "It''s only 60 percent of the pool cost." Chu City said here, some flesh ache, because the accumulation of force 30 seconds, their own dragon Yan skull is equivalent to the seventh level of magic.


    In the center of the magic attack, there should be no loot left.


    The legendary strong can not withstand such attacks.


    Luo Yan''s double swords are in hand, and a round of flying sword like the moon is also floating in front of him to guard the city of Chu.


    Her six level sword cultivation is not her opponent even if her legends are tied together. If you fight alone, you will be stronger in the sixth level. During the casting process of Chu City, he was really afraid of being disturbed by others. Although he would not die, the consumption of magic increased, and the degree of completion of magic was basically not available, which meant that an attack opportunity was lost.


    I don''t mention the loss of spiritual power. For example, if the power is stored for 30 seconds this time, once it is interrupted halfway, after 15 seconds, the loss of magic power is almost 100% of the total amount of magic pool.


    At the head of the city, several legendary mages monitored the battlefield and found that a mage in the distance was preparing magic. The color of five snow-white skulls was changing to dark gold. They all remembered the earth shaking explosion they had heard before.


    "You can''t make him do magic!"


    In the tower, a sharp voice came out, male and female.


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