In the Qiankun Shield, Zhang Fan first made up for the previously consumed Divine Thunder Cannon shell materials, and remade a set of seventy-two Divine Thunder Cannons, equipped with five hundred and four shells. The reason is that if those most powerful Divine Thunder Cannon shells are exposed prematurely as a means of pressing the bottom of the box, they will obviously do more harm than good. Under normal circumstances, the more suitable means of the Divine Thunder Cannon is the Divine Thunder Cannon that is about the same level as one's own full attack, and when these "full force strikes" can be launched in a relatively short period of time, many times it can make the situation of the seemingly troublesome battle become clear all of a sudden. Moreover, the improvement of one's own strength with this level of divine thunder cannon shells is also within the conceivable range.

In addition, it is the creation of a type of weapon similar to a missile. At the beginning, Zhang Fan's idea was, of course, to build a "large guided rocket" according to the missiles he remembered

However, when I carefully deduced it in the phantom realm of Qiankun Shield, I found that many boundary principles suitable for geophysics and earth materials did not seem to be suitable for high-level materials. For example, if the warhead of the spiritual missile uses the talisman method, it does not need to be too large at all. In order to maximize the speed in the case of a relatively small frontal cross-sectional area and more stealth, the aspect ratio can also be made relatively large. After many tests, the approximate specifications of the "Spirit Power Missile" were finally determined: about one zhang and two or three feet long, about four meters, and only two centimeters in diameter. The ratio of length to diameter reaches 200 to 1. After using the body material of a tenth-order demon beast to make the shaft, although it is very slender, it still has considerable strength. In the conception and design, the flight principle of this "magic arrow" based on the warhead of the talisman is more similar to that of a pulse-detonation engine, which is constantly accelerating and ejecting, and is equipped with a multi-stage device. As you get closer to the target, the ratio of length to diameter decreases from 200 to 1 to about 20 to 1, like the normal ratio of a stubby crossbow arrow. On the exterior of this "magic arrow", there are also talismans that can overcome wind resistance to a large extent and even detect and confirm targets.

Although the volume of the entire divine arrow is not very large after sophisticated processing, the weight is not light, it is about 5,000 catties, so it has the strength to threaten the master within a certain level outside the peak of the god with its kinetic energy.

Of course, the huge energy is also accelerated in enough time, and the acceleration of 500,000 times the force of gravity accelerates in about 20 seconds, and it will be a peak of speed when it reaches a distance of about 1 million kilometers. With Zhang Fan's spiritual power and even his unique mental power detection skills, the effective detection distance of facing opponents who are as powerful as himself or even more powerful and not stealth is about a million kilometers.

Therefore, this kind of "divine thunder arrow" with a certain ability to maneuver has become the most important means of long-range attack in the future, or a means of cooperating with operations. In the twenty years along the way, Zhang Fan spent several years on making the Divine Thunder Cannon that matched his strength, and about fifteen years spent on the production of the "Divine Thunder Arrow".

Because compared with the Divine Thunder Cannon, the "minimum effective range" of this weapon is too large, and there are many limitations in its use. Therefore, Zhang Fan used the tenth-order demon beast materials obtained this time to make a total of 1,200 "Divine Thunder Arrows". It's just that this kind of weapon is a more time-consuming process for Zhang Fan today, which is to "charge" his own relatively limited internal strength, without wasting the artificial inner pill for the main combat use, and let Zhang Fan make a lot of "charged inner pill", which can barely keep up with the approximate expectations and even progress.

After returning to Yunxia Palace, Zhang Fan only briefly re-verified his identity with Yunhong, and chose a fairly secluded place within the boundaries of Yunxia Palace to enter the Qiankun Shield, and began to continue to be busy using the materials he had obtained before.

Through the materials of about three hundred tenth-order demon beasts obtained from Yunhong, Zhang Fan further upgraded and expanded his real killer Divine Thunder Cannon to five hundred and four shells, and added about three hundred Divine Thunder Arrows.

In addition, using the inner pill and skin blood in the body of those demon beasts prepared to make more exercise talismans that seemed very useful in the previous battle, this made Zhang Fan busy retreating in the Qiankun Shield for fifty-two years, that is, about fifty-two days outside, before he roughly perfected the combat preparations according to the original plan. Of course, the materials that I have worked so hard to prepare are not all for the purpose of making wedding dresses for others. Therefore, Zhang Fan's idea is that if he can thwart the opponent's attack with the smallest amount of consumption possible, it will be the best.

This time, in addition to the specific power and efficacy of the "Divine Thunder Arrow" produced by Zhang Fan, some basic usage methods and characteristics were not completely hidden from Yunhong and others. "I heard that your Yunxia Palace is also good at illusion and stealth techniques, I wonder how sure you are that if you encounter a master like the God Lord of the Ten Thousand Laws Sect, before the battlefield of the head-to-head confrontation, you will have to hide some long-range hidden weapons?"

Yunhong said modestly: "My Yunxia Palace can only be said to be a little bit clear in terms of illusion and stealth techniques, and it can't be compared with the really top sects in this regard. If you face a master of decision-making who is more than one level stronger than me like the God Lord of the Ten Thousand Law Sect. It's just that the entire Yunxia Palace concentrates on the main force to develop a certain reason, and it is difficult to do it in a short period of time... ”

Zhang Fan couldn't help but feel a little uneasy in his heart, he didn't expect the palace master of Yunxia Palace to be so unconfident, and after thinking for a while, he asked: "What if it is on the periphery of this Yunxia Palace, with the help of some formations that have been created in advance?"

"There may be some hope, but there is no complete certainty... After all, I once knew a thing or two about the god master of the Ten Thousand Laws Sect in the challenge on the list of god transformation masters. However, Elder Li can rest assured. If according to the agreement that the combat power cannot exceed three times, the master of the level of the god master of the Ten Thousand Laws Sect should not come over in person, and it is estimated that he will send a few more masters under his command, accompanied by many other powerhouses at the peak of the gods... ”

Hearing this, Zhang Fan felt that there were some doors: "In a short period of time, through a specific formation, while creating a phantom array that can cover the hidden weapon, it can transmit a more accurate tendency and even a more accurate standard signal to a position about a million miles behind, and lock on the strongest person in the opponent's enemy group, these should also be able to do it if you are prepared, right?"

Zhang Fan was worried that the direct language ideas might cause some misunderstanding or ambiguity, so he imagined a combat scenario and idea in his mind and passed it on to Yunhong. After all, this made Yunhong's previous statements about Zhang Fan suddenly clear...

As Yun Hong had predicted before, the Wanfa Sect had indeed made the decision to send troops to attack Yunxia Palace in almost the shortest possible time, and they had also made their actions as concealed as possible.

When Yunxia Palace got the news, the Wanfa Sect was only about seven or eight billion miles away from the teleportation array in the area of the Streamer Courtyard on the front of the western border of Yunxia Palace according to the news transmitted by the hidden outpost through a unique method. However, this time, the scale of the power of the Ten Thousand Laws Sect seemed to be somewhat unexpected.

"There are less than five hundred Avatar Cultivators?" Many of the middle and high-ranking members of the Yunxia Palace were a little surprised when they were discussing strategies against the enemy. Zhang Fan now showed combat effectiveness comparable to the level of the sect god master, and of course he was also capable of participating in this kind of mid-level meeting of Yunxia Palace.

Of course, this surprise was only for a moment, and soon many people calmed down. It's clear: numbers don't mean strength. At this time, Zhang Fan's combat effectiveness is probably comparable to the strength of the entire Yunxia Palace for at most, and nine people can reach three times the strength. Even the first-level figures of the masters of the various courtyards of the Ordinary Yunxia Palace are compared to the ordinary god peak masters, and they are also the strength of a group of thirty god transformation peak cultivators. The other party came to dozens of middle-level masters who were far stronger than the average peak masters of the Transformation Gods, several high-level masters, plus ordinary figures who were slightly more prominent than the peak cultivators of the Transformation Gods, even five hundred people were a powerful force for the current Yunxia Palace. What's more: this is only exposed, not the whole story.

"I understand what their intentions are, this is a loophole in the alliance with the Heavenly Dao: with a strong master to come to the expedition, the strength of a single time can be controlled at no more than three times, but it avoids the limit that the cumulative number of people lost in the expedition many times cannot exceed twice the number of Yunxia Palace's god transformation masters... "It seems that at this time, the courtyard master of Yunxia Palace realized something.

When Zhang Fan heard this, he also seemed to begin to realize that he might have to stay in Yunxia Palace for a little longer. Maybe until he beats the Ten Thousand Law Sect and fears it, until he can become a strong person at the level of the Ten Thousand Law Sect God Lord, maybe the current crisis can really be overcome.

After some discussion with Zhang Fan, Yun Hong seemed to be quite confident and said: "Don't worry, if you didn't have enough confidence to deal with the enemy before, you will order all the academies to prepare to retreat to protect yourself now, and you won't let Elder Li stay." ”

In Yunxia Palace, or an unwritten rule in many alliances is that the battle plan is mainly in charge of the number one, in order to avoid possible leaks, the specific action plan can not be revealed downward, and the monks of Yunxia Palace naturally acquiesce to this, so hearing Yunhong say this, the pressure felt by many people was also relaxed.

Of course, Yunhong's heart was not so relaxed at this time. The enemy's first expedition may have been frustrated, but what about the second and third times? Compared to the behemoth of the Wanfa Sect, Yunxia Palace seemed too small. The other side is only a part of the forces on the eastern border, and it can put real pressure on itself.

"Maybe if it works after this encounter, I'm going to start transferring. If we can show ourselves in this battle, I think that the Dao Alliance will also think that we are valuable... ”

Zhang Fan was silent for a moment, not very optimistic: "If that's the case, you have to prepare for the worst." Based on what I've learned from you, I don't think the Heavenly Dao Alliance can be trusted as its name suggests. The utilitarian heart is still too heavy. If I were the general leader of the Heavenly Dao Alliance, I probably wouldn't have signed such an agreement with the Ten Thousand Law Sect. Even if there is any compromise, it should be in the way of a secret covenant ... You can rest assured. I'll surprise Yunxia Palace. So be it: there is a repeat and a second, and there is no repeat and a fourth. If we repel an attack by the Wanfa Sect after this time, and the other party comes back for the third time, it will not be too late for you to make a decision to retreat... ”

When Zhang Fan said this, he also made up some minds in his heart, according to his own expectations, if he could defeat his opponent twice in a row. The other party should not be as stupid as "Principal Jiang", and the fourth or fifth "encirclement and suppression" will be taught a lesson. I should be able to "fight two wars for three or four years" and I should have a relatively long retreat during this period. It seems that the current self is indeed a little too dependent on external objects, "even the inner pill is fake", and the cultivation that can be used for a long time is still too weak, so the first inconvenience that Zhang Fan feels is that whether it is making divine thunder cannon shells, or various high-power talismans, or making divine thunder arrows, the speed of "charging" is too slow. If even if his original cultivation was only at the level of the peak of the Ten Thousand Law Sect's Standardized Gods, then he would undoubtedly have the conditions to raise the power of various attack methods to a great level, and perhaps at that time, he could really be said to be standing at the peak of the range of known world-transformed god cultivators.

Just when Zhang Fan and even Yunhong and others were busy preparing for the battle in Yunxia Palace, the Wanfa Sect expeditionary team led by Wujiang and Wuji personally became closer and closer to the Yunxia Sect.

Through the experience of several previous encounters with Yunxia Palace, the Wanfa Sect also learned that in dealing with the opponents of the teleportation array that was convenient for the gathering of forces in a realm like Yunxia Palace, although it was not small, it was full of opponents who were convenient for the gathering of forces, and it was the lower level to divide the troops to infiltrate. It is better to concentrate its important forces and either fight the opponent in the vicinity of the Streamer Temple or the Flying Swallow Temple, or choose to break through each of them.

When it was still about 200 million miles away from the western border of Yunxia Palace, the opponents who had been divided for concealment finally gathered and formed a total of 1,100 or so Transformation God powerhouses. Although the number of people is only about one-fifth of that of Yunxia Palace, including a large number of masters outside the Peak of Transformation Gods, Wujiang has enough confidence to think that the actual strength is more than three times that of Yunxia Palace.

Although there are regulations on the number of people and total ranking and combat power in the agreement with the Heavenly Dao Alliance, the lack of clear regulations on magic weapons and war beasts seems to be a loophole.

"The magic weapons we carried this time should be enough for our strength to have a five-fold or even seven-fold actual advantage. What kind of formation should not be difficult for us... This time, Wujiang who led the team seemed to be confident.