"Take a closer look at your third-grade weapons, there are three black star slots in the heart of the sword, this is where the spirit is located!" Long Zu pointed his fan at the sword heart of the Qingguang Vine Iron Sword in Long Yi's novice!

"The so-called spiritual infusion, as the name suggests, is to inject one's own spiritual power into the artifact, so that the artifact's own side effect is enhanced! But what kind of attribute of spiritual power is injected, and how much spiritual power is injected is a very exquisite thing," Long Zu continued.

"Take this rodent vine iron sword as an example, the upper limit of the one-star spiritual infusion range is about 10,000 spiritual power values, and it should not exceed fifteen thousand!, and the best spiritual infusion attribute of the poison system is dark spiritual power, followed by water attributes, Xiaoxin, you can condense some water-attribute spiritual power now, inject it into this first star slot, pay attention to control the spiritual power value, do not exceed 10,000!" Long Zu said very solemnly.

I saw Long Yixin sitting on the condensation of heaven and earth aura, turning into water spiritual power, and then guiding the silk water attribute spiritual power to the first star slot of the rodent vine iron sword, only to see that there was a slow injection of spiritual power in the star trough, as the purple lotus around Long Yixin's body gradually increased, the ability to condense water attribute spiritual power also accelerated a lot!

In less than an hour, Long Yixin's first infusion was over. The first star slot of the Rodent Vine Iron Sword was filled with a pale blue star, and then the Rodent Vine Iron Sword also emitted a faint black light!

"It's not bad, try how to increase the effect of the infusion," Long Zu said, pointing to the vines of the giant tree!

Long Yixin used this soul-infused rodent vine iron sword to stab at the giant tree vine again!, "Ancestor, it feels no different from before!!" Long Yixin said as he looked at the sword marks on the vines.

"Look carefully at the color of the vines at the sword marks, it is a little darker than just now, and the poisoning range has also expanded a little!" After listening to Long Zu's words, Long Yixin compared it, and sure enough, this is the case!" "It's true, if you don't look carefully, you really can't see that the color is darker" Long Yixin said as if he had just woken up from a dream.

"Based on the difference between before and after the infusion, it can be inferred that the infusion has increased the poisoning effect by about two percentages. "Although Long Zu is only at the level of five-grade alchemy, but at the beginning, he was able to defeat a lot of people in the field of five-grade alchemy, and now the spirit improvement effect of a mere third-grade weapon can be confirmed by Long Zu at a glance!

"It's only two percent enhancement, which is too little!" Long Yixin looked a little disappointed, after all, after tossing for so long, he has increased the increase of one loss, which is unreasonable!!

"Hmph, you kid is too greedy, your water spirit has just awakened, not even a first order, and the condensed water attribute spiritual power can only be said to be barely a water attribute, let alone any refinement!" Long Zu said and knocked Long Yixin's head with a folding fan!

"Besides, all the materials used in your three-grade weapons are mortal, if you want to inject more spiritual enhancements, you have to use at least five-grade materials from the first-grade refining!" Long Zu actually came from this stage, he knew very well that the way of alchemy did not come from his own imagination, and relied on the accumulated experience!

"Five-grade materials? That's at least a 10,000-year-old wood core and a 10,000-year-old iron core, right? Where can I get this thing? I still think about it, I don't want too much, an ordinary three-grade is also a third-grade, and I can use a rare weapon, I'm enough!" Long Yixin said comfortingly!

"Your ...... is out of the way" Long Zu shook his head helplessly, "Since the basic spirit injection is no problem, then this time we will come to the limit spirit injection, Xiao Xin will change to another rodent vine iron sword to make a one-star spirit injection, and this time inject fifteen thousand spiritual power!"

"Ancestor, what is the Limit Soul Infusion, didn't you just say that the upper limit of this weapon's Soul Injection is about 10,000, if you want to inject 15,000 Spirits, will there be any problems?" Long Yixin asked inexplicably?

"Let's talk about the question after you inject your soul!!" Long Zu smiled.

This time it took about two quarters of an hour to inject the spirit, but there was no problem in the process of injecting the spirit, and then Long Yixin used the giant tree vine vine to test the power, and the conclusion was that the enhancement of the attached effect of the second rodent vine iron sword was about 4 percent, although the spiritual power injected was only fifty percent more than the first time, but the additional effect increase was doubled, and the three Long Yixin felt very excited!

So Long Yixin continued to use the third rodent vine iron sword to inject spirits, this time he was going to inject 20,000 spiritual power points, but when he injected 16,000, the star groove in the heart of the sword suddenly exploded, and the third rodent vine iron sword was shattered like this! Long Yixin stayed there with a stunned face!

"Ancestor, if you inject too many spirits, you will fail to inject spirits, right? And the only result of failure is the shattering of the weapon!" Long Yixin said lightly.

"You're right, but you don't have to worry, we already know the limit of this weapon's infusion, let's start injecting the Bloodthirsty Vine Iron Sword, and the injection of spiritual power is worth fifteen thousand nine hundred!"

Long Yixin followed Long Zu's instructions and injected the first star slot of the Bloodthirsty Vine Iron Sword......

Then start the two-star spirit injection, according to the instructions of the Dragon Ancestor, it is estimated that the spirit will be injected with 50,000! But when the spiritual power value is injected into 44,000, the first bloodthirsty vine iron sword is also broken!

Long Zu just looked at it, and then continued to command Long Yixin to inject the second bloodthirsty vine iron sword, but this time the two-star spirit injection only injected 43,000 spiritual power to let Long Yixin stop!

"Prepare to inject the third star, inject 200,000 spirits!" Long Zu said firmly, through these few infusions, Long Yixin had probably guessed the logic of Long Zu, he used the lessons of failure again and again to touch the infusion limit of each star of this rattan iron sword, and then adjusted the amount of infusion of the weapons in the back according to this limit......

Three days later, "Do you understand the experience of these rare weapons with three-star infusion?" Long Zu took out a new folding fan, only to see a picture of mountains and rivers drawn on it!

"Ancestor, isn't it a waste of resources for us to do this? We can easily get the materials of the first, second and third grades, if we want to refine high-grade artifacts, with this way of injecting spirits, wouldn't the gains outweigh the losses?" Long Yixin naturally understood Long Zu's calculations, to put it bluntly, the spiritual power lost by the failure of the infusion is naturally nothing, but the loss of materials can inevitably have a feeling of cutting meat, for a person like Long Yixin, who regards a penny as a treasure, such a waste of resources is a tyrannical thing!

"So you think the alchemist's part-time job is so easy to do? This thing seems reliable, but after actual scrutiny, you will know that the alchemist profession is very expensive!

Long Yixin looked at the three-star rare weapons in hand, "If I'm not mistaken, it seems that these weapons have golden star borders on the star slots!"

"You're right, only the golden star's infusion is the ultimate infusion, and only the extreme infusion can maximize the increase in the attached effect, you use these white-veined vine iron swords to condense the spiritual power!"