Zhao Zhengfeng looked at it, and was speechless for a moment, looking at this list, he could guess how expensive this spear was.

However, Zhao Zhengfeng also knew that Yang Tong did not blackmail himself, he was born in a family, and he understood the market better than Yang Tong, and wanted to hire someone to specially design and build a weapon, and it was built with unique craftsmanship, which is indeed a very high price, and the four-grade spirit tool is indeed more than three times more expensive than the third-grade spirit tool.

"Well, I don't have so much to learn, can I exchange these for high-grade spars for you?" Zhao Zhengfeng thought for a moment and asked.

"Yes. Yang Tong replied, the high-grade spar is better, Yang Tong knows very well that the high-grade spar in the school can be exchanged at any time, but outside, the high-grade spar is not something that can be exchanged if you want to.

"Okay, by the way, what are your plans for the future?" Zhao Zhengfeng asked.

"I think you also know that I can already refine the four-grade spirit tool, and I plan to continue to specialize in the manufacture of spirit tools, maybe the research direction will turn to defensive spirit tools and make a lot of money. Yang Tong replied with a smile. This is indeed the truth, Yang Tong's cultivation is now progressing very slowly, and the Nine Turns Yuan Gong has compressed Yang Tong's own true yuan by ten thousand times and refined it by ten thousand times, but it has also slowed down Yang Tong's cultivation speed. Cultivation is not in a hurry, cultivation is not in a hurry, just move forward slowly, so that the savings are thicker. However, on the refining weapon, Yang Tong needs to work hard to specialize, because after the Dan period, Yang Tong wants to refine the natal magic weapon for himself, which is not sloppy.

"Oh, yes, that's great, good armor is more expensive and more difficult to make than weapons, no matter what the finished product is, I will buy it all on behalf of the Zhao family." Zhao Zhengfeng said happily. Good boutiques can be kept for their own use, and the general goods can be sold, making money, increasing popularity, and hitting the business of hostile forces.

"Yes, no problem. Yang Tong nodded in response.

"Okay, let's pay the account first, you check, I've already transferred the money and points into your account. Zhao Zhengfeng said.

Yang Tong took out his ID card and checked it, and sure enough, the points of the mercenary union were converted into contribution points, thirty contribution points. and the extra 20 million spirit coins on the account. Immediately afterwards, Zhao Zhengfeng took out five high-grade spars and handed them to Yang Tong, took the gun and left.

In the fourth grade, there is no theoretical cultural knowledge to learn, only some minor history courses and geography explanations, and more secret arts and martial arts courses.

At the same time, the spiritual equipment masters also have a spiritual equipment practice course to learn, which is a spiritual tool master invited by the school to make spiritual tools on the spot, and give explanations while making them. Compared with the third grade, which is just on paper, it is much more concrete.

Yang Tong attended classes every morning, studied refining tools by himself in the afternoon, and practiced the mental method in the evening to improve his cultivation.

Living a calm and fulfilling life, Yang Tong is like a sponge, frantically absorbing all the knowledge that can be learned in school, and this knowledge is digested and exerted in his own research, and even drawing inferences from one another, Yang Tong is making progress every day.

Even, Yang Tong also minored in the formation explanation, not because Yang Tong wanted to change his career to become a formation mage, but because a refining master could not form a formation and it was impossible to refine a good magic weapon.

While Yang Tong was painstakingly studying refining tools and formations, he also began to learn the prohibition of the ancient immortal civilization. In fact, the formation and the prohibition are one, the formation is the ban, and the prohibition is the formation, but the form of expression is different. If it is manifested outside, it is a formation, and if it is manifested inside, it is forbidden.

In modern civilization, the formation is very commonly used, and it is also a science that expounds the principles of the universe, and evolves according to the changes of the laws. It is divided into thirteen grades and integrated into the life of the entire human civilization.

Prohibition is not only used for refining weapons, but also a means of attack and defense, and skillfully using prohibition is actually similar to the law of use in a sense. Prohibitions are mature and systematic, and in general, they are divided into seventy-two earth-shattering prohibitions and thirty-six Tiangang prohibitions, and these one hundred and eight prohibitions can be extended and changed into endless prohibitions.

To refine the natal magic weapon, it is natural that the formation cultivation is extremely high, so that the forbidden can be strong enough, so that the natal magic weapon has a good foundation from the beginning.

Yang Tong began to refine weapons frantically, and one by one defensive spirit tools were manufactured, Yang Tong's speed was crazy to one defensive spirit tool a day, not seeking quality, only quantity.

Anyway, these defensive suits were all indiscriminately refined by Yang Tong in order to test the formation, and the losses were great at the beginning, and there were many failures, and finally Yang Tong had to use the Panlong Zijin Furnace to refine them for the sake of cost, and with the help of the Natural Fire and the Magic Weapon Ding Furnace, the success rate increased greatly. All kinds of whimsical ideas, all kinds of formation combinations were being tested one by one, and even Yang Tong even fused an earth shattering prohibition into a defensive spirit tool. This spirit tool was suddenly reborn and became a third-grade gold-level defensive suit. This is the first time that Yang Tong has refined a gold-level battle suit.

After gaining experience, Yang Tong no longer used the earth to prohibit it, but tried to use the combination of modern civilization formations to create gold-level battle suits in his own understanding and experiments.

Yang Tong is good at refining weapons, but not at refining defensive spirit tools. The key to refining defensive spirit equipment lies in the formation, without profound formation attainments, it is impossible to refine a good defensive suit at all. Therefore, on the counter of the school's spirit net, there are very few defensive suits for sale.

Weapons are divided into melee weapons used by martial arts masters and telekinetic weapons used by divine spirit masters, but armor is not divided into professions, generally speaking, the person who refines armor and becomes a spirit master must also be a qualified array mage. Of course, this can only be regarded as qualified, not necessarily excellent. And an excellent array mage is not necessarily a qualified spirit master.

If you want to become a human being, you must endure loneliness and loneliness, and you must pay ten times and a hundred times the hard work.

Zhao Zhengfeng came to Yang Tong once every six months and received a large number of defensive spirit tools, most of which were silver-level, and there were basically only a few gold-level ones. However, the number is quite large, which makes Zhao Zhengfeng even more impressed by Yang Tong, this is a pure spirit master, and he is quite crazy when he specializes in research, which almost all of the excellent spirit masters he knows have this in common.

Every time Zhao Zhengfeng came, it seemed that he came with the money to wholesale the defensive spirit equipment, and the defense spirit equipment refined by Yang Tong was not all handed over to Zhao Zhengfeng, and the few treasures were put on the counter of the school by Yang Tong and sold for hundreds of learning points, but the cost was recovered.

－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－

The second shift arrived, and there was another shift in the evening.

;