Looking at Song Xiaoxiao, Zhao Feng was speechless, but he didn't think much about it when she was angry.

It's not too early, Zhao Feng said hello and took Song Xiaoxiao to find a room to arrange her, as for this matter, he planned to wait until he turned back to explain it to his mother.

On the second day, Zhao Feng woke up from his cultivation state early in the morning, and after a few hours of adjustment, the fatigue from last night and before in Lei Yin Mountain disappeared.

After another hundred and eight weeks of continuous operation, he left the room, because of the company's affairs, Du Yulan had already gone to the company, and Song Xiaoxiao and Ren Ruan Ruan had not recovered from their previous fatigue and were still sleeping.

Zhao Feng made breakfast and left it in the kitchen, put down a note, and then went to Buyi Street.

When he came here, he bought some metal materials, as well as some pen note materials to burn the formation.

Last time, because of lack of time, Zhao Feng didn't have time to burn the formation for the Rain Light Sword, so the Rain Light Sword's help to him was not obvious enough, and this time he had to solve this problem.

However, the tools for building spiritual weapons are not available in ordinary places, and they are also very valuable, and it is too wasteful to buy them back and use them once, so Zhao Feng found a blacksmith shop and rented them for 20,000 yuan.

The owner of the blacksmith shop was a middle-aged strong man, and although he agreed, he pouted a little mockingly behind his back.

"Cut, arrogant boy, I don't want to transform my spiritual weapon if I don't look at how many catties and taels I have, uncle, I have studied for nearly twenty years, and I can barely make a first-class spiritual weapon. ”

Although the blacksmith boss was talking in a whisper behind his back, he could still hear it very clearly with Zhao Feng's ears, but his face was calm, and there was no fluctuation in his heart.

When he arrived at a separate room, where all the equipment was available, Zhao Feng took out the rain light sword, as well as some auxiliary materials he had just bought from outside, and finally mica fine gold, which was the so-called thunder sound stone.

Mica fine gold is very hard, no worse than gold, and needs to be smelted and shaped by high-temperature smelting.

It itself is also a precious metal raw material, mostly used to refine four-grade spiritual weapons, even if it is condensed into a model of a sword alone, its power is comparable to an ordinary second-grade spiritual weapon.

To be honest, it is a bit of a waste to use mica essence gold to process the Rain Light Sword, but Zhao Feng has no better choice, those three-grade metals are the most suitable for transforming the Rain Light Sword, but it needs to cost spirit stones to buy.

And considering that there was a battle with Han Jianfeng later, that guy had now cultivated his sword intent, if Zhao Feng used the sword again, he would only be suppressed by the other party, but with mica essence, this situation would be offset.

Preparing the materials, Zhao Feng roughly designed it.

The transformation of the rain sword is mainly based on mica fine gold, which does not need too much, first plating a layer on the blade to increase its sharpness, and then using a pebble-sized mica fine gold to install it on the top of the sword body, and then carving a formation from above.

And even if he doesn't need the rain light sword in the future, he can also take down the piece of mica essence gold to ensure that there is no waste.

With his thoughts, the actual operation was not difficult for Zhao Feng, he unhurriedly put the mica essence gold on the firebox, and slowly waited for the flame to roast it.

During this period, Zhao Feng used pen and paper to prepare to start carving the formation.

After thinking about it carefully, Zhao Feng's original plan was to restrain a spirit gathering array, with his current strength, the biggest weakness was the lack of internal strength, but after constantly upgrading from life to life, and after obtaining the thousand-year-old grassroots jade, he didn't have to worry about this.

Not to mention how much internal force can be stored in the middle level of the Yellow Rank, the internal force that the three-grade spirit weapon Phoenix Shield can store alone is enough for Zhao Feng to fight for two hours without any rest, so there is no need for him to waste his mind on this.

In the case that the internal force is guaranteed, power has naturally become Zhao Feng's first choice.

And the most powerful formation is the killing formation, and the minimum conditions for the use of the killing array are all martial artists, but the killing array suitable for this stage is not particularly powerful.

is also mainly because the strength and physical fitness of the martial artist of this strength can't keep up, and using too powerful a killing array will hurt himself first.

However, there was no such restriction when it came to carving on the sword, and Zhao Feng immediately chose a three-grade killing array called the Explosive Spirit Array.

As the name suggests, this explosive spirit array is to process the spiritual power through a special way and then let it explode, which is relatively strong in the three-grade killing array, even if the first stage of an ordinary martial artist adds spiritual power, it can seriously injure the strong person of the fourth stage of the martial artist.

Moreover, in Zhao Feng's design, because the mica essence gold contained a huge amount of pure thunder attribute energy, if this point was used well, it could also make the power of the Spirit Explosion Array go to the next level.

However, the thunder attribute in mica essence gold is limited, and there is only one way to use it all the time, which is to use the thunder attribute spiritual power when using the spirit gathering array, so that the spiritual power is consistent with the attributes of mica essence itself, and it can be recycled.

However, Endless Life is an attributeless exercise, and if you want to turn it into a power with a thunder attribute, there is only one way.

Transformative array.

This formation is an ancient ancient formation, which is now basically lost.

Its function is to transform the internal force attributes, and the original purpose of creating it was to allow those who have alien weapons to perfectly exert the power of the weapon.

For example, if a martial artist who cultivates fire-attribute exercises gets an earth-attribute shield, even if he urges spiritual power to use it, his defense will be greatly reduced because the attribute does not match it.

However, if you add this formation, the user's fire attribute spiritual power will be transformed into earth attribute, so that it will not affect the use of the shield.

Zhao Feng is now planning to do this, he wants to arrange another energy transformation array, transforming the internal force into a thunder attribute to strengthen the power of the spirit explosion array created with mica essence gold.

However, the space left for the rain light sword to arrange the formation is limited, and it is still very difficult to arrange the two formations on it at the same time.

Subsequently, Zhao Feng tried to cut out the largest mica essence gold and burned the formation on it, first of all, the energy transformation array.

This ancient formation arrangement method was a little complicated, and it took Zhao Feng an hour and a half to complete.

When it was arranged, more than half of the space of the mica essence gold had already been occupied, and the space required for the burning of the Spirit Explosion Array was no less than that of the Transformation Array, which made him feel a little headache.

Three attempts in a row, all ended in failure, looking at the spirit pen and spirit rune that were about to run out, Zhao Feng felt distressed, after all, it cost him a spirit stone or two.

"Hey, it would be nice if you could burn the formation on top of the formation, so there would be so much trouble. ”

If the shop owner outside heard Zhao Feng's words, he would definitely laugh his teeth off, because it was common sense that the formation could not be combined and arranged.

But Zhao Feng's eyes suddenly lit up after he said this.

"That might be fine. ”