In the following period of time, except for occasionally looking at the alchemy inheritance handed over to him by Master Nanhua, Lu Ming spent most of his time in the refining room groping for refining magic weapons.

More than a month has passed, and in addition to refining a few medium-grade magic weapons, Lu Ming's refining skills are obviously much more proficient.

Although this refining technique is a simple version, Lu Ming is also a wasted aura when he uses it.

Lu Ming didn't dare to imagine that if he used the real refining technique, would his aura support the arrangement of a formation, and Lu Ming, who was curious, secretly performed a real alchemy duel, but he didn't expect that half of the aura in Lu Ming's dantian would be sucked away with just one starting move.

After that, Lu Ming decided that he would never use the real alchemy decision until the foundation building period.

Lu Ming looked at the material in front of him and fell into deep thought.

During this period of time, Lu Ming's refiner used some low-grade materials, and only occasionally mixed some high-grade materials.

Due to the limitations of the quality of the materials, it is simply impossible for these low-grade materials to be refined into high-quality magic weapons.

For example, the jade used by Lu Ming at the beginning, its material is only a little better than the quality of ordinary jade, and under normal circumstances, it can also refine the inferior magic weapon.

If it weren't for Lu Ming adding a few formations to it, it would have been impossible to reach the standard of a medium-grade magic weapon.

At this time, Lu Ming was holding a fist-sized piece of iron essence.

As the name suggests, iron essence is the essence of iron, and a ton of iron ore can be refined at most about one or two grams of iron essence, and the iron essence in Lu Ming's hand has at least a dozen catties, and if it is extracted from iron ore, it will also cost at least tens of thousands of tons of iron ore, which shows the preciousness of iron essence.

The preciousness of iron essence lies not only in its rarity, but also in its hardness, among the materials of the same level as it, iron essence is the hardest, and it is also the most suitable material for refining flying swords.

That's right, Lu Ming is planning to refine a flying sword.

After this period of experience in refining low-grade materials, Lu Ming was seventy percent sure of refining a high-grade magic weapon.

Seventy percent of the certainty is already a high probability in the refining world.

After arranging a spirit gathering array around him, Lu Ming began to adjust his state.

After about a quarter of an hour, Lu Ming controlled the fist-sized iron essence in mid-air one foot in front of his chest.

The fire of the dantian melted the iron essence with all its might, and Lu Ming controlled the slow rotation of the iron essence from time to time to ensure that the whole iron essence was heated evenly.

Iron essence is worthy of high-grade materials, and after continuous roasting for an hour, the iron essence shows signs of melting.

Lu Ming not only did not have a trace of irritability, but showed a happy expression.

"It took so long to start melting, which shows that this piece of iron essence is very hard, and if it is refined into a flying sword, it will definitely be indestructible and extremely sharp. ”

Another hour passed before the iron essence melted completely.

Lu Ming took a short rest, and carefully divided the melted iron essence into two parts, one large and one small.

Lu Ming carefully divided his divine consciousness into two parts, controlling the large and small masses of liquid.

The two masses of liquid kept changing their shapes in mid-air, and finally turned into the appearance of two flying swords, one large and one small.

Seeing that the flying sword was formed, Lu Ming quickly took out the red flame gold and cold silver that had been prepared a long time ago, and sprinkled them evenly on the sword bodies of the two flying swords, one large and one small.

When the red flame gold and cold silver fell on the sword body, they immediately turned into a puddle of liquid and evenly penetrated into the sword body.

Next is the most important mosaic formation, Lu Ming's expression couldn't help but be a little solemn.

After recovering his aura a little, Lu Ming began to perform the refining technique.

Since Lu Ming had already practiced very skillfully before, he was also familiar with this trick, and soon the first formation had been carved.

"Ruyi array, knot!"

Two white rays of light flew towards the two flying swords.

The Ruyi Array is the longest formation used in refining weapons, and this formation has only one function to control the size of the shape of the magic weapon.

Imagine a small flying sword, how can it stand up to people with only limited space?

This requires a wishful array, as long as one thought, the flying sword can become bigger and smaller, as you wish.

Not only the flying sword, but any magic weapon will basically be inlaid with a wishful array, which is not only easy to carry, but also can reduce unnecessary trouble.

Therefore, no monk in the cultivation realm would be stupid enough to run around the world with a magic weapon on his back.

"Flame Array, Knot!"

Lu Ming pointed at his hand, and a red light flashed and did not fly into the big flying sword.

"Ice Formation, Knot!"

Lu Ming then injected a chilling blue light into the small flying sword.

After breaking into four formations in a row, Lu Ming's aura was almost exhausted at this time.

"Spirit Gathering Array, get up!"

Lu Ming took out a formation stone to activate the formation he had prepared, and quickly put two Gathering Spirit Pills into his mouth.

As soon as the spirit pill was entered, it turned into two streams of heat and flowed towards Lu Ming's almost dry dantian, and Lu Ming immediately recovered half of his aura.

Lu Ming didn't dare to delay, and immediately formed a handprint again.

"Hurry up, knot!"

As the name suggests, the rapid formation increases the flight speed of the flying sword, which is an indispensable formation for the flying sword class, so Lu Ming inlaid one of the two flying swords, one large and one small.

With Lu Ming's heavy drinking, the aura that had just recovered was hollowed out again, and the simple thing was that the Spirit Gathering Array had already played a role, and a large amount of spiritual energy poured into Lu Ming's body, coupled with the medicinal effect of the two Spirit Gathering Pills, Lu Ming's aura was just enough to catch up with his own consumption.

"Hanging Array, Knot!"

Suspended Array, the most basic formation for the flying sword to fly, if there is no Suspended Array Flying Sword, it is impossible to hang in the air at all, let alone fly.

"Simple Spirit Gathering Array, Knot!"

When the last formation was submerged into the two flying swords, Lu Ming was so tired that he almost fainted, and his two hands kept trembling.

However, when Lu Ming saw the two flying swords suspended in front of him, he still took them with a strong fighting spirit.

The big flying sword was about three feet long, the whole body was red, and sparks were carved on the sword body, and a trace of heat overflowed from the sword body from time to time.

The small flying sword was about half smaller, only one foot six inches, the whole body was blue, and the sword body was carved with Dao water lines, and those water patterns seemed to come to life when shaking, causing ripples, and a trace of blue cold air came out from time to time.

"Sure enough, it's a high-grade magic weapon!"

After Lu Ming looked at it carefully, a smug smile finally appeared on his tired face.

Lu Ming was excited when he held the big flying sword, this was a flying sword with a high-grade magic weapon, as long as he dripped a drop of his own blood on it, he could completely use this flying sword.

Lu Ming did not hesitate, and immediately dripped a drop of blood.

As soon as the drop of blood touched the sword body, it quickly melted into the sword body.

Lu Ming immediately felt that he had a sense of blood connection with the flying sword in his hand, as if he could control this flying sword with a single thought.

"Fly!"

As soon as Lu Ming's hand was released, the flying sword flew around the room quickly, and finally stopped above Lu Ming's head, whining.

With a move from Lu Ming's hand, the flying sword returned to Lu Ming's hand.

"What a spiritual flying sword!"

The more Lu Ming looked at it, the more he liked this flying sword.

"The whole body is red, and it is quite spiritual, so let's call you the Red Spirit Sword!"

Lu Ming gently stroked the Red Spirit Sword and said.