Suddenly, Mu Guangming turned around and handed the iron essence to Xu Yi's palm, and said with a smile, "I understand that it must be the time of war, the blood, the power of wishes, and the power of thunder appear in sequence, and the cycle is endless. The iron essence is incorporated into it, forming an internal circulation, and the iron essence that is purely untainted to the external objects is completely dirty."

Iron essence is similar to source iron, and is also a metallic raw material among pure five elements raw materials. This pure five elements raw material is the most difficult to be dirty.

This is also the fundamental factor that Xu Yi repeatedly used iron essence to transform it into a shield to defend himself, and the iron essence is always intact.

Mu Guangming guessed that the reason why the iron spirit was dirty was that Xu Yidi was in a big battle. The iron spirit was used in a big battle by Qianfu. He was first besieged by the Eight Thousand Golden Talisman Army. As the main force of defense, Iron Spirit was the first to be affected.

The gold medal that forms the giant golden armor is nourished by the heart and blood, and the iron essence is eroded by the force of the heart and blood.

Later, Xu Yi was attacked by the Dragon Locking Emperor Qi again. Although he was protected by the iron spirit, he was seriously injured. In the final analysis, this Dragon Locking Emperor Qi was a wish power, a wish power that was recognized by the royal family by hundreds of millions of creatures.

Finally, the Jiuxiao True Dragon Sword leads the power of thunder to attack.

After three encounters, all of them were added to the iron spirit, forming such a perfect internal cycle, completely locking the iron spirit.

To be honest, this ending is not the worst for Iron Spirit. Not only that, it also means that it is a bit of a blessing in disguise.

If it weren't for the power of hard work, the power of wishes, and the power of thunder, which formed a perfect internal circulation, the iron spirit would only shrink greatly under such a fierce attack, and eventually completely disappeared, so how could it be preserved?

"If it weren't for chance and God's gift, there would be this iron spirit? It's really a treasure. I really don't know what this iron spirit will look like after it is restored."

Mu Guangming praised him endlessly and smiled and threw the iron spirit to Xu Yi.

Xu Yi was overjoyed, and Mu Guangming said this. Obviously, the yin and yang energy can be used to warm up and regulate iron essence. At that moment, he heard from him, "I want the yin and yang energy. Thank you Brother Guangming for your report."

Xu Yi was skillfully operating the equipment, but he saw the light flashing. The golden token inserted into the slot turned purple in an instant, and the score of more than 1,300 did not move at all. Then, he heard a jingling sound, and the copper ** containing the yin and yang energy slid out of the box. Xu Yi took it and put it into the Sumeru Ring.

The yin and yang energy are unexpected joys. After the completion, Xu Yi's focus naturally shifted to the middle-grade thunder spirit stone, and he immediately expressed his feelings towards Mu Guangming.

This manager Mu, who didn't speak much and had a demeanor, inexplicably made him feel trustworthy.

Mu Guangming said, "Medium-grade Thunder Spirit Stone? There are two here. You have the Thunder Bear Demon Core in the middle stage of Tongyu. You only need one hundred points to exchange for one. As for the Thunder Bear Demon Core in the early stage of Tongyu, it is not qualified to exchange for the medium-grade spirit stone. If you want to obtain it, you only cost 500 points, plus 20,000 spirit stones."

Even though Xu Yi was mentally prepared, he was still frightened. The 500-point score was exchanged for only one exchange opportunity, and 20,000 spirit stones had to be paid in additional payment.

As far as he knows, the value difference between the five elements spirit stones and ordinary spirit stones is about two thousand times, while the price difference between medium-grade spirit stones and ordinary spirit stones is also about two thousand times. If replaced according to this theory, it will be 40,000 ordinary spirit stones, and replace a medium-grade thunder-attribute spirit stone.

However, such a simple reasoning may not be correct. In short, no matter from which angle it is calculated, it is worth tens of thousands of spirit stones to exchange for a medium-grade thunder attribute spirit stone.

Of course, if you count the precious 500 value, the value is not worth it, so you have to talk about it carefully. After all, the 500 value means five fire spirit stones. If you calculate the 500 value, it is worth more than ten thousand spirit stones.

The two are superimposed, and the price of a medium-grade thunder spirit stone undoubtedly reaches more than 30,000 spirit stones.

However, Xu Yi was not thinking about whether it was worth it or not. The medium-grade thunder spirit stone was something he had to do and must get it.

But at the moment, there were 20,000 spirit stones in his bag, so he heard him say, "I wonder if there is a way to use other objects to offset the spirit stones to exchange them."

Mu Guangming said, "Shanggongtang is not a chamber of commerce, but it cannot be offset, and there is no precedent."

Xu Yi was secretly anxious, "I dare to ask if the exchange can be waited for a while and then come back to raise the spirit stone."

Mu Guangming said, "You may have forgotten that Dubao is also one of the entire trial sessions, but it is just the last one. But from the root, you are still in the trial session. After leaving Shanggong Hall, the trial session will end, Dubao will naturally end."

Seeing Xu Yi being frustrated, Mu Guangming said, "Forget it, I met you when I saw you. Since you wanted this medium-grade thunder spirit stone so much, I would like to inform you. Maybe there is room for improvement. After all, a handsome talent and a superb man like you are rare in a century. He should be treated very well."

Xu Yi clasped his fists solemnly, "Thank you Brother Guangming."

After half a stick of incense, Mu Guangming turned back with a happy face and said from afar, "It's really a big deal. The above agrees to your Tongyu's early Thunder Cat Bear Demon Core for mid-term use, but there is a small condition."

Xu Yi's heart relaxed, and then he became nervous, "I hope to hear the details."

Mu Guangming said, "It's not a strict requirement, it's just a small vision. You need you to show your full kindness at the right time and when you need it, or be able to meet one of the requirements within your ability."

"What's the condition? I haven't heard of it. Is it really a pie that falls from the sky?"

Xu Yi was secretly surprised and he could not think of the reason why the other party offered such conditions.

Mu Guangming seemed to see his doubts and smiled, "Your Excellency, you don't need to be too careful. Wherever you place outstanding people like you, you are the targets of all parties. I just make a good relationship with you, so there is no need to be surprised."

As soon as these words were said, Xu Yi immediately understood that indeed, he had received too much of this kind of preferential treatment, whether it was in the Great Yue or the World Association.

"So, I thanked me."

Xu Yi held his fists respectfully.

After more than ten breaths, he collected two pure white, middle-grade thunder spirit stones into the Sumeru Ring, consuming two demon cores of the Tongyu Thunder Cat Bear, and lost two hundred points.

Then, Xu Yi browsed the eyes of the exchange equipment again. He was a little aimless. There were indeed many precious things in it, either he had to save or he needed too many spirit stones.

After reading for a while, I finally aimed at the two objects. After that, I used up all the spirit stones in the Sumeru Ring and 600 points.
Chapter completed!