Baal couldn't wait to take Dongfang Xiao's corrective device, put it on his arm, and activated the lightsaber again.

The Lightblade appeared, but it still didn't seem very stable.

"What's going on?"

The two looked at each other, a little unclear.

Dongfang Xiao picked up the correction device made by Baal, put it on his arm, and tried to activate the lightsaber.

The lightsaber was successfully stimulated, and the light blade was very stable, almost no different from the effect of the correction device that Dongfang Xiao had used before.

"Isn't there a problem with the orthotic device?"

Dongfang Xiao and Barr glanced at each other, took out the prototype of the corrective device that Barr had made first, and put it on Dongfang Xiao's arm.

The blade of light still appeared, but there was some subtle tremor on the blade, proving that the prototype seemed to have some flaws.

Barr frowned, there was no reason why Dongfang Xiao could use a lightsaber, but he couldn't. Is there anything other than a corrective device that requires the use of a lightsaber?

"By the way, it's the lightsaber mastery!"

Dongfang Xiao suddenly realized that when he used the lightsaber, he had already learned the mastery of the lightsaber, and the reason why Baal couldn't use the lightsaber might be the case.

"But if that's the case...... Didn't my money go for nothing? ”

Dongfang Xiao's face turned blue and white for a while, originally he thought that Barr's research had failed, so he had no choice but to take out 100,000 gold coins to buy the finished product of the correction device, but now it seems that there is no problem with the correction device that Barr has researched.

"What's wrong with you? It doesn't look good. Barr asked with concern.

"Oh, it's okay, the reason why the lightsaber doesn't work, I seem to already know......"

Barr's face was hopeful: "Do you already know?" What exactly? Can you tell me? ”

Dongfang Xiao hesitated slightly, and then tried to teach the lightsaber master to Baal.

Lightsaber mastery can be regarded as a special skill, it can be regarded as a special way of using spiritual power, although the operation of this spiritual power is not difficult, and the consumption of spiritual power is also very limited, but it is like a key, only by learning this unique way of spiritual power operation, can you use the lightsaber freely.

Although lightsaber mastery is not a difficult skill to learn, it still takes some time to digest and absorb. Barr is not like Dongfang Xiao, once he succeeds in learning the skill, although he will not be directly proficient, but it is deeply imprinted in his brain, he needs time to slowly familiarize himself with and digest it, before he can truly learn to master the lightsaber.

"Let's try and see if we can use a lightsaber this time."

Baal nodded, although he had only just learned the lightsaber mastery and was still very unskilled, but it should have had some effect.

After a soft sound, the dazzling light blade appeared in Baal's hand again, although the light blade was still a little trembling, but it was undoubtedly much stronger than just now.

"It turns out that it's really a matter of lightsaber mastery......"

After Barr's verification again, Dongfang Xiao was completely convinced that his 100,000 gold coins were indeed spent in vain......

"That's 100,000 gold coins!"

Dongfang Xiao's heart seemed to be dripping blood, 100,000 gold coins was not a small amount, enough for him to open a series of skills again, or exchange for equipment that was more advanced than rare equipment, even if he bought some equipment and gave it to his friends, it was countless times better than playing like this.

"Well, I knew that Barr had tried it himself when he first came up with the results......"

Dongfang Xiao's heart was full of remorse, the matter mastered by the lightsaber, he had some guesses when he had not successfully opened the swordsmanship skills, but he did not remind Barr, when Barr said that there were some problems with the correction device, he did not ask more, which led to the extra money spent.

"Alas...... It's really a matter of eating a trench and growing wise......" Dongfang Xiao secretly warned himself in his heart that this amount of money would have to be earned back by letting him sell jars at the door for several days.

At this moment, Barr couldn't put down the lightsaer in his hand, as if he had thought of something, and said to Dongfang Xiao with some hesitation: "Xiao, those materials you gave me last time...... Anything else? ”

"Materials? What material? ”

"It's that boxy, little white cube-like thing......"

Dongfang Xiao suddenly realized: "You're talking about a small white crystal, right?" ”

With that, Dongfang Xiao took out a white crystal and put it in front of Barr.

"You're talking about this thing, right?"

"Yes, that's it!"

Barr said excitedly, Dongfang Xiao originally gave him the crystals to let him make the correction device, although he was very curious about this strange crystal, but without completing the correction device, he did not waste time to study these crystals, in the continuous experiment, these crystals were also consumed by him.

But now that the orthodontic device has been basically completed, and my work is completed, I am naturally interested in these small crystals.

"What's the use of this thing?"

Dongfang Xiao was a little curious, when he had nothing to do, he had also studied these crystals, except for finding that the crystals contained some energy, there was nothing else to discover, even if it was the energy contained in the crystals, he had no way to absorb it.

There are many things that contain energy in this world, and the most common one is magic crystal. Regarding magic crystals, Dongfang Xiao is no stranger, the items escorted by the blue wolf mercenary group at the beginning were a batch of valuable magic crystals. In addition to the magic crystal, the magic core of the magic beast also contains a considerable amount of energy, and compared with the magic crystal, the energy contained in the magic core is not only much purer, but also the energy contained in the magic core is dozens of times, a hundred times or even more than the same volume of the magic core, and what is even more bizarre is that as long as the energy in the magic core is not completely consumed, the magic core will automatically absorb the energy between heaven and earth, and after a period of time, it will return to its original state, which is very magical. Although the value of magic cores is high, they are also very difficult to obtain, and the production is very limited, compared to magic crystals, although they are only consumables, they are very cheap.

"It seems that some strange changes have taken place after the crystals have been added to the correction device, so I want to be able to study these crystals. ”

"Okay, but if anything happens, you'll have to tell me as soon as possible."

Dongfang Xiao nodded, these small crystals were not valuable, so he left hundreds of crystals of various colors for Baal to study.

"It's nature."

Soon, Barr began his own research again, and Dongfang Xiao felt that he was idle here, so he went to Mochen's residence, and it happened that he had something to ask Mochen to answer for himself.