The Strongest Magic Doctor in City

Although the Barrier in the grand formation had been destroyed, it could still be used. The main reason was that when he forged the Immortal Artifact, he would definitely attract the phenomenon of the heaven and earth, which was why he chose to come here.    

With the Barrier's protection, no one would notice this place.    

In less than a few minutes, the grand formation's restoration was completed, and then it was reactivated, forming a massive barrier that covered the sky.    

From the outside world, it was just like the scene they had seen in the past.    

"Next..."    

He took out the ten great swords and the ten swords hovered in front of him.    

"What do you want to do?" The Artifact Spirit seemed to have sensed his intention.    

"I plan to help you guys level up." Lee Yifann replied.    

"Upgrade?"    

"You want to forge us a second time?"    

The Artifact Spirit were very shocked. "But we have already set the model. It's very difficult, right?"    

"There's nothing that we can't do."    

Lee Yifann's expression was indifferent. After thinking for a while, he took out the Firmament Sword and Green And White Snake Sword.    

"The number of ten swords is not suitable to form the Sword Formation. I might as well add another two and imitate the Twelve Immortal Execution Sword Formation."    

Looking at their levels, the Firmament Sword and Green And White Snake Sword were both Quasi God weapons. Their levels were one level lower than the ten famous swords.    

As for not taking the Seven-Star Heavenly Punishment Sword, Lee Yifann had his own considerations.    

The Seven-Star Heavenly Punishment Sword was different from the twelve swords. From the very beginning, the forging process had been very different. The 12 swords were based on the overall forging concept, which meant that they were not like the Seven-Star Heavenly Punishment Sword. They were forged using the modular forging method.    

Therefore, the strength of the twelve swords was very single. They were not like the Seven-Star Heavenly Punishment Sword, which had both attack and defense, and could use many types of strength.    

For a Sword Formation, as every single individual, it was best to have a single strength. Moreover, it had to be pure enough, or else it would interfere with the strength of the entire Sword Formation.    

Therefore, the Seven-Star Heavenly Punishment Sword couldn't be a part of the Sword Formation.    

In addition, in terms of growth, the Seven-Star Heavenly Punishment Sword actually had the potential to grow compared to the twelve swords. Because of its unique forging method, the Seven-Star Heavenly Punishment Sword was equivalent to piecing together the components one by one. Therefore, it could be repeatedly forged, which also meant that it could be infinitely improved. As long as there were suitable materials, it was the existence that was most likely to become an Immortal Artifact.    

The Artifact Spirit in the Seven-Star Heavenly Punishment Sword had been tempered over these years, and its strength had also risen to the same level. It had all reached the level of Demon Saint, which was equivalent to a human Tribulation Crossing Stage martial artist.    

Originally, Lee Yifann also planned to upgrade the Seven-Star Heavenly Punishment Sword once, but since there were enough suitable materials, he first upgraded the ten great swords.    

"Let's begin!"    

Lee Yifann yawned and took out a lot of materials from the Storage Ring.    

Most of these materials were collected by him when he was crafting for the Taoist Rite Luotian. There was no lack of Top Level Material among them. In addition, he had the Heavenly Cold Divine Meteoric Iron, the Four Symbols Boundless Flower, and so on and so forth. It was absolutely enough to raise all twelve swords to the level of half Immortal Artifact.    

"Puff!"    

Just like before, he released more than ten clones to divide the work and cooperate with them. This way, it could increase the efficiency to a greater extent.    

He had a few of his clones use Chaos Fire and Heavenly Fire to refine materials. The other clones would complete the next step, fusing the materials with the sword, and finally forging and leveling up.    

This efficiency was far higher than before. Moreover, as his cultivation base increased, the Chaos Fire had completely recovered its strength. The time needed to refine the materials was also greatly reduced.    

In less than a day, he had completed the fusion of the 12 swords. He used the new materials to forge the 12 swords a second time.    

"The last step, Heavenly Lightning Baptism."    

Lee Yifann raised his head and looked at the dark clouds in the sky. He was very familiar with this scene, so without saying anything, he let the twelve swords fly into the sky.    

"Rumble!"    

The dark clouds rolled, and lightning flashed.    

Lee Yifann stared at the thunder clouds in the sky and suddenly exclaimed, "Eh? The color of the heavenly lightning this time seems to be different from before. "    

He remembered that when the divine weapon was born, the heavenly lightning was a Nine Profound Heavenly Thunder with colorful colors, which was very easy to recognize.    

However, this time, he discovered that the colorful heavenly lightning quickly turned into a pure black color. Furthermore, from its power, it gave him a very dangerous feeling.    

"Could it be that this is the heavenly lightning that the Immortal Artifact needs to receive when it's born? The color is indeed special."    

He guessed that when the other Lowest Level Immortal Artifact was born, it should be this kind of black heavenly lightning.    

However, he didn't know how to call it.    

He was sure that this heavenly lightning couldn't be compared to the Chaos Heavenly Thunder. After all, the Chaos Heavenly Thunder was the highest form of the heavenly lightning. However, this black heavenly lightning couldn't be underestimated.    

"Boom!"    

While thinking, the black heavenly lightning struck the twelve swords.    

The black lightning arc was like a spider web, exploding with the twelve swords as the center, even affecting the surrounding mountains and rivers.    

Lee Yifann looked very surprised, "The power of this heavenly lightning is far stronger than the Nine Profound Heavenly Thunder, and it's completely different from the Nine Profound Heavenly Thunder. The Nine Profound Heavenly Thunder doesn't have any destructive properties towards divine weapons, but this black heavenly lightning is full of destructive properties."    

He saw that the mountains that were affected by the heavenly lightning had all been turned into scorched earth.    

Immediately, he hurriedly released the Chaos Water to extinguish the flames of the mountains that were struck by the lightning. At the same time, he released his soul energy to devour the excess heavenly lightning energy.    

"Zi! Zi! Zi!"    

The heavenly lightning wreaked havoc, and the repercussions were wild and violent.    

Lee Yifann soon felt the scariness of the black heavenly lightning. When it devoured the energy of the black heavenly lightning, he actually felt a kind of oppressive force.    

"Hmph! I can even withstand the Chaos Heavenly Thunder, so why should I be afraid of you?"    

Of course, he wasn't afraid at all. The heavenly lightning was indeed scary and strange, but compared to the Chaos Heavenly Thunder, it was much weaker.    

This tug of war lasted for four days.    

After the heavenly lightning dispersed, Lee Yifann finally heaved a sigh of relief. At the same time, he was slightly surprised, "This heavenly lightning baptism lasted longer than any other time. Is it really worthy of being called the Heavenly Lightning Baptism by Immortal Artifact? "    

In the past, when he forged a weapon, the heavenly lightning baptism usually lasted one day. At most, it lasted two days, but this time, it lasted for more than four days.    

Lee Yifann stretched out his hand and grabbed. Twelve swords flew in front of him. He observed for a while and nodded secretly, "That's right. They are all half-Immortal Artifacts. If they are formed into Sword Formation, they should be able to exert the power of the Immortal Artifact."    

If it was an Immortal Artifact, it would be enough for Yu Lingloong to drink a kettle of water.    

"I never thought that I would be able to become an Immortal Artifact while I'm still alive!" The Artifact Spirit of Dragon Spring Sword was very excited.    

"Although it's only a half Immortal Artifact, it's still very impressive. At least it has the word 'immortal' on it." The Shadow Bearing Sword Artifact Spirit was very satisfied.    

"In the end, it's still an Immortal Artifact Master. Even if it's a second forging, there won't be any mistakes." The Red Cloud Sword's Artifact Spirit clicked its tongue in wonder.    

Lee Yifann said faintly, "In any case, he used a lot of Top Level Material to smelt the effect."