For the next week, Lin Yi stayed in Tony Stark's seaside villa, and cooperated with Tony to make a lightsaber that matched his sword qi attributes.

Dr. Bruce Banner, who arrived later, also joined the development of the lightsaber after learning about it.

Finally, about half a month after Tony got it, the lightsaber was finally preliminarily completed.

The hilt is 33 cm long, with three black buttons at the bottom and a metal lid to prevent accidental touches, a slightly polished middle for easier grip, and a blue crystal cut into a diamond shape at the top.

Of course, if anyone really thought that this exposed blue crystal was the power core, then he would definitely pay the price for his hasty judgment.

That's right, the blue crystal on the surface is actually just decoration, and the real frost core is hidden inside the hilt.

This design is not because of Lin Yi's old silver coin attributes, but because of his helplessness after many attempts.

In the beginning, Tony used a variety of metals as the hilt material for his lightsaber, but it didn't work very well.

It wasn't until later, when Tony experimented with using fishbeam wood instead of metal, that the energy in it was truly channeled intact.

Therefore, the inner core of the hilt is actually a fishbeam wood hilt wrapped around the frost core, and then the outer layer of metal devices for energy guidance and magnetic field binding.

"Give it a try."

Tony, wearing steel arm armor, handed the cold hilt to Lin Yi.

Lin Yi nodded, eagerly reached out and took the hilt of the sword, walked into the closed testing room under the gaze of Tony and Banner, and then pressed the switch at the bottom.

"Hum—"

After a buzz, a dark blue light blade of about one meter and three meters burst out from the top of the hilt, and the light blue cold light particles were locked into the form of a sword blade by the strong magnetic field.

After the light blade was completely formed, a strong figure suddenly appeared in Lin Yi's mind.

He carried several weapons on his back, and three different weapons stuck in his waist.

Even so, the figure still didn't look bloated.

"Let me see, another latecomer full of potential?"

The sharp eyes seemed to be able to travel through time and space and see Lin Yi beyond the distant world.

"Go for it! Latecomers! The thought of so many people chasing after me makes my blood boil, hahaha! ”

In the midst of the heroic laughter, the gorgeous lightsaber two swords suddenly danced in front of Lin Yi's eyes.

"Detects that the player has a skill, automatically activates the ......"

"You've learned a new skill"

In just an instant, the lightsaber in Lin Yi's hand had already completed the whole process from strange to familiar.

"Is this a lightsaber?"

Lin Yi raised the hilt of the sword he was holding in his hand, looked at the dark blue blade and muttered.

"Actually, it's not a lightsaber in the true sense of the word......"

Tony's voice rang out.

"I just managed to channel the energy in the frost core, and then simulated the energy fluctuations of your sword qi to the greatest extent, and restrained it into the shape of a sword blade through a powerful magnetic field."

"That's right."

Dr. Banner nodded, pushing his glasses.

"It's all thanks to the special sword qi you mastered, and his energy structure is magical and exquisite."

"And, of course, that magical frost core."

Tony added.

Lin Yi nodded when he heard this.

When he got it in his hands, Lin Yi found out.

This dark blue blade of light was actually a sword qi that had been fixed into the shape of a sword blade by a strong magnetic field, and in terms of energy fluctuations and energy attributes, it was the same as his sword qi.

The only difference is that the energy is supplied by an external source, which is the frost core.

Strictly speaking, it's not really a lightsaber, but ......

The corners of Lin Yi's mouth curled slightly, and he chose to unencapsulate.

That's right, just like he thought before, any equipment made from materials recognized by the system can also be directly converted into system equipment.

After being converted into system equipment, the system says it's a lightsaber, and it's a lightsaber!

"Hum—"

Another buzzing sound sounded, and the blue lightsaber in Lin Yi's hand suddenly lit up for a while, and then suddenly fixed.

"Lin Yi, is the magnetic field unstable?"

Tony, who saw this scene, hurriedly asked.

“…… It's okay! ”

Lin Yi turned his head and smiled brightly.

"It was resonating with my sword qi just now!"

“……”

Tony's expression softened, and he hugged his shoulders and looked at Lin Yi inside.

"Would you like to give it a try?"

Banner asked with a smile.

"Then ...... Try? ”

The corners of Lin Yi's mouth curled slightly, and then he closed his eyes, and the magic power that belonged to him flowed in his body.

"Uhhh

With a wave of Lin Yi's right hand, an ice-blue sword qi slashed diagonally towards the target that had already been prepared in front of him.

"Wow~"

Tony looked at the screen in front of him and exclaimed.

“…… What do you think? ”

Lin Yi turned off the lightsaber and walked out of the testing room.

"Your sword qi easily split the 1.2-meter steel plate, and there is still strength left." Tony said as he slid the screen in front of Lin Yi, "My bad, I should have found a thicker piece of ......"

"Not only that, but the temperature at the fracture of the steel plate is minus 39.55 °C, this is a cold light saber with an ultra-low temperature, if I didn't see it with my own eyes, I really can't believe that there is such a weapon."

Dr. Banner amazed.

"The only downside is that the material of the lightsaber can't completely prevent the Frost Core from escaping at room temperature."

Tony said with regret.

"At the current rate, this baby will only last for three years at most."

However, Lin Yi laughed when he heard this.

"It's true that lightsaber materials can't be made, but I can!"

“…… Well? ”

Tony was slightly stunned.

"When I got my hands on it, I found that the energy channeled by your device was the same as my sword qi, so I could easily control the energy that leaked out......"

"Stuff them back again?"

Tony's face froze.

"That's right, it's the best weapon for me, and I'm very satisfied."

As he spoke, Lin Yi looked at Tony with a sincere expression.

"Thank you!"

“……”

Tony looked at Lin Yi, the corners of his mouth suddenly curled, and patted him on the shoulder.

"If only you didn't regret it."

With that, Tony turned and walked to the console, intending to replace the broken steel plate in the testing room.

"And you, Dr. Banner."

Lin Yi turned his head to look at Banner and said.

"No ......"

Dr. Banner smiled.

"I'm satisfied if you allow me to participate......"

"Since you don't have to worry about energy escaping, do you want to keep trying?"

Tony's voice came softly.

"Of course!!"

Lin Yi smiled slightly and took out the hilt of the sword.

Of course, he couldn't help but want to continue testing, because after he chose to unencapsulate, a new prompt appeared in his mind.

"Do you want to open the package?"

"Yes!"

"Encapsulation opened, detected that the player has a piece of homebrew equipment, ask the player to rename ......"

“…… Cold Light Sword! ”

"Successful naming! Player-made equipment has been automatically converted into system equipment! ”