72: Spell: Electromagnetic Cannon

After Spirit Eye placed the order, Brian began to ponder what Catherine had said earlier about exclusive spells.

He had actually conceived of this spell before.

He had vaguely known that every mage above Level 4 had their own exclusive spell, but he didn't know the specific reason.

Now, after Catherine's explanation, he understood that it was related to laws and Level 7.

Therefore, anyone with ambitions for that realm would likely create their own exclusive spells.

What Brian wanted to create was a magic version of the Railgun!

The one from Misaka Mikoto!

However, he felt it could be improved.

After all, the initial velocity of a real-world railgun in his previous life reached 2500 meters/second.

Misaka Mikoto's Railgun, however, was only three times the speed of sound, which is 1030 meters/second.

This actually differs from real-world equipment.

Misaka's Railgun uses plasma to form a track similar to a magnetic railgun, allowing the projectile to continuously accelerate and correct its trajectory in flight.

However, what is actually shown in the anime is the principle of a coilgun (Gauss gun), which uses a moving electric arc magnetic field to attract ferromagnetic metal projectiles.

Brian felt that using the principle of a coilgun for magical modification would greatly enhance its power.

The principle of a coilgun is to generate a traveling wave magnetic field by successively energizing multiple sets of coils, and the projectile, with its built-in coil or conductor, induces current in the magnetic field and is propelled by the Ampere force.

For the magic version, he only needed to learn various runes related to magnetism, magnetic fields, confinement, acceleration, and summoning entities, and then experiment with combining them into a spell.

It was expected that he would be able to directly fire a Railgun spell without needing a coin!

Thinking of this, Brian became a little impatient! He spoke quickly to Spirit Eye beside him:

"Spirit Eye, please help me find spells related to magnetism, magnetic fields, confinement, acceleration, and summoning solid metal, as well as their rune combinations and basic runes."

Now Brian didn't care about plane invasions anymore.

Compared to super cool magic skills, a plane invasion was just a 'der'!

What was that? He didn't know it!

He only knew that!

Coolness is for life!

Especially when it's both cool and powerful!

"Okay, Master, I'll find them for you right away." Spirit Eye heard the urgency in Brian's tone and didn't delay.

She immediately started searching on the magic net.

And displayed the results on the projection in front of Brian.

Brian stared at the runes and spell information on the projection, occasionally muttering softly to himself.

As more and more search results appeared, his eyes grew brighter, and he constantly imagined the magic version of the Railgun in his mind.

"Master, I've found many powerful runes and spells here! However, some rune combinations still need further research to see how they can be perfectly matched."

Spirit Eye said, operating the projector and enlarging some key runes.

Brian nodded in agreement, stroking his chin and beginning to ponder.

"These symbols are powerful individually, but to combine them into a new spell, we need to think carefully. Let's first pick out the symbols related to magnetism and magnetic fields and see how to combine them to form a stable magnetic field."

Spirit Eye quickly filtered out the relevant runes, and the screen showed intricate rune lines.

Brian looked closely, and suddenly his eyes lit up.

"Look at this magnetic force rune and this magnetic field rune. If connected like this, they might form a controllable magnetic field area."

Spirit Eye simulated Brian's idea, and a glowing magnetic field model appeared on the screen.

"This seems to work! But we still need to add a confinement rune to ensure the projectile doesn't go astray within the magnetic field."

"Exactly, the confinement rune is especially important. Let's find suitable confinement runes from these results." Brian excitedly rubbed his hands.

The two then began to carefully select confinement runes. After some comparison and experimentation, they finally found a suitable rune to add to the model.

At this point, the model on the projection became more stable, and a preliminary version of the magic Railgun slowly emerged.

"We're still missing acceleration runes and solid metal summoning runes. With acceleration runes, the projectile can travel fast, and solid summoning runes allow us to directly summon projectiles without relying on coins anymore."

Spirit Eye continued searching through the results and quickly found the appropriate runes.

After adding these two runes to the model, the rune combination for the magic Railgun was basically complete.

"Master, the model is built, but we still need to test it," Spirit Eye reminded.

"Good, we'll go to the experimental grounds now and see how powerful this magic Railgun is!" Brian took a deep breath, his eyes full of anticipation.

With that, he and Spirit Eye hurried out of the lab and headed towards the Dimensional Space Room.

Upon arriving at the Dimensional Space Room, Brian concentrated and began to cast the new spell.

His mental energy surged, and the rune combination instantly appeared in the air.

As he completed the final rune engraving, a strong purplish-blue light emerged from where the runes had been, a metal projectile suddenly appeared, and then was quickly enveloped by a rotating magnetic field.

The projectile accelerated steadily within the magnetic field, emitting a sharp whistling sound, and in the blink of an eye, shot towards the target in the distance.

With a loud 'boom,' the target was directly pierced, and the powerful impact caused fragments of the target to scatter.

"It worked! Spirit Eye, look! The power is too immense!" Brian jumped up excitedly.

"Master, that's incredible! This magic Railgun is even more powerful than we imagined." Spirit Eye also hugged Brian excitedly.

"However, it seems it can still be optimized," Brian said, stroking his chin in thought.

"Although the power is already good, there's still room for improvement in firing speed and accuracy. We can adjust the arrangement of the runes again."

"We could also consider adding space-type runes for track concealment! Oh, and gravity-type runes too. We need to experiment with the optimal size and weight!"

For the next twenty-odd days, Brian and Spirit Eye were immersed in optimizing the magic version of the Railgun.

They constantly tried different rune arrangements, adjusting the timing and intensity of energy injection.

Each attempt recorded the experimental results and data.

Every time Brian cast a spell, Spirit Eye diligently recorded and analyzed the data.

Brian discovered that when adjusting the rune arrangement, some runes, when arranged in a specific order, could make the magnetic field more stable, allowing the projectile to accelerate more smoothly.

To achieve the effect of disappearing tracks, they began to research space-type runes.

Spirit Eye searched a lot of information about space magic on the magic net, while Brian performed practical operations based on this information.

They found that by cleverly using space-distortion runes, the projectile could briefly enter another spatial dimension upon firing, thereby achieving the effect of track concealment.

However, this process was not simple; even a slight error could cause the projectile to get lost in spatial turbulence.

The experiments with gravity-type runes were truly complex.

They had to consider whether to add weight-reducing runes or weight-increasing runes.

They also had to adjust the size of the summoned solid metal to match them with the runes.

Thus, they had to find the most suitable point and also see if it matched other runes.

After countless attempts and adjustments, they finally found a relatively perfect solution.

The new magic Railgun spell not only significantly increased firing speed but also saw a qualitative leap in accuracy, and the track concealment effect could be stably achieved.

Moreover, under the effect of gravity runes, the power of the projectile was further enhanced.

Brian and Spirit Eye once again came to the Dimensional Space Room, ready to test the final results of this optimization.

Brian's mental energy surged out of his body, and the rune combination rapidly formed in the air.

As the final rune engraving was completed, the entire rune combination slowly merged into the void, transforming into an extremely dazzling purplish-blue magnetic light field.

A brand new metal warhead instantly appeared in the center of the light, tightly enveloped by a stable and rapidly rotating magnetic field.

The metal warhead accelerated at an astonishing speed within the magnetic field, emitting a roar like a howl from hell.

In the blink of an eye, the metal warhead shot towards the distant target like a flash of lightning, so fast that it almost disappeared from sight in an instant.

There was a deafening roar, as if the entire Dimensional Space Room trembled.

The target was completely shattered, fragments scattered like meteors, leaving deep indentations on the distant walls.

"Spirit Eye, check how many spell points of damage the magic caused."

Hearing Brian's command, Spirit Eye quickly arranged for the auxiliary intelligent robot nearby to go forward and check.

"Master, it reached 9900 spell points! It's already close to the Level 4 limit!"

"Haha, excellent!" Brian burst into unrestrained laughter upon hearing Spirit Eye's report.

"That's amazing! Spirit Eye, we succeeded!"

"Master, this is the result of our combined efforts! This Railgun spell is too powerful!" Spirit Eye also danced with excitement!

After their excitement subsided, Brian calmed his agitated mood and said:

"Spirit Eye, this success is just the beginning. We must carefully record this achievement; it is the crystallization of our wisdom. In the future, we might even develop more powerful magic based on this."

Spirit Eye nodded quickly and immediately began to organize the data and rune combinations from the experiment, meticulously recording them in the magic notebook.

Watching Spirit Eye record, Brian once again cast the Railgun spell.

This time, it was no longer cast in the air.

But from his hand!

Why do this?

Because it's cool!

He saw,

Brian's whole body was emitting purplish-blue electric arcs, and a purplish-blue magnetic aura emerged around him.

He slowly raised his arm, and a metal warhead instantly appeared at his fingertips, the magnetic field causing it to float and rotate at high speed.

As Brian uttered 'biu,'

The metal warhead instantly shot out like a bolt of lightning.

So cool!

Brian's first thought after firing the shot!

He didn't care about its power now, only that it was truly cool!

After showing off, Brian thought that developing spells was truly not easy!

The runes and various combination knowledge involved were simply overwhelming!

With countless experiments and Spirit Eye's help,

It took them both nearly a month to complete!

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