Villain: Ultimate Mutation System in the Alternate World

'Done,'

He had finished creating and upgrading a bunch of new original skills.

There were so many that if he had to read through each one, it would take him a long time.

The important thing for him was that he was able to cover some of his weaknesses.

He felt more confident knowing he had these new abilities at his disposal.

Standing up, he stretched his arms, feeling the magnetic nodes subtly react beneath his bones.

This extra layer of defense was a great addition to his arsenal.

There was no such thing as too much defense in his vocabulary after all. The more life savings skills he has, the better prepared he would be for any threats that came his way.

'Now for the other thing,' he mumbled, his voice trailing off as he touched his chest.

He could sense that his cores had increased to seven now, with the middle and the biggest one acting as the main engine that blended and connected the energy together before he could release it.

Each one represented a different element, except for the last one, which he didn't recognize.

He closed his eyes and focused on the new core, trying to tap into its energy.

As he reached out, he felt it—there was something there, but it was blank, like staring at a white canvas.

Determined to understand this new element, he decided to conduct some tests.

First, he called forth his lightning element, crackling with energy at his fingertips. He concentrated, feeling the familiar rush of power as bright arcs of blue electricity danced around him.

Next, he summoned negative energy, the dark force swirling around him and transforming the electric sparks into a deep, dark red.

Finally, he channeled the unknown element, feeling it slip through his fingers like mist. He tried to merge all three, hoping for something extraordinary.

However—

There was no unique transformation, no game-changing outcome—just his dark red lightning becoming a bit stronger.

It was underwhelming, especially considering that his other elements could boost power far better

"System, what is this new core about?"

He had tried to figure it out himself, testing it over and over, but some things were just too hard to understand without more information.

This was one of those moments.

[Analyzing... This element is classified as Null Energy.]

"Null Energy?" he repeated "What does that even mean?"

[Null Energy is a highly versatile but neutral force. It doesn't have a distinct elemental characteristic but instead acts as a stabilizer or amplifier for other energies.]

Reign sat down, processing the information.

So it wasn't useless, but more like a blank slate—something that could enhance his existing powers without altering their fundamental nature.

'Does that mean it can't do anything on its own?' he asked, still hoping there was more to it.

[Not necessarily, Host. Null Core will be useful to you, especially considering you have a wide range of elements but only a limited number of cores. With Null Core, you can interchange elements depending on your needs]

'Interchange elements? I thought I could do that already.'

He had always been able to use different elements freely, even without cores assigned to all of them.

[Host, that conversion ability was aided by the system and not by your actual body . Without it, you alone would struggle to manage such intricate energy manipulation ]

[In terms of efficiency, it is lacking compared to the Null Energy. For example, when you use an element that doesn't have a core, you can only utilize 5-10% of its full potential compared to one that does have a dedicated cores.]

He touched his chin and nodded thoughtfully. He had already been aware of this limitation for a long time, which was why he rarely used the powers tied to elements without cores.

'Wait... maybe this could work,'

An idea suddenly sparked in his mind—a bold thought, but maybe, just maybe, it could be done. Continue your journey with empire

"System? Tell me how to convert the Null Core."

[Host, you just need to control the flow of your cores, and then fill the Null Core with your desired element,]n/ô/vel/b//jn dot c//om

Reign's eyes gleamed. 'So, I can turn the Null Core into whatever I need at the moment, right? I can change it anytime?'

[Affirmative. The Null Core will take on the properties of the element you choose to infuse into it. This will grant you the same power as if that element had its own dedicated core.]

'Sweet,'

Following the system's instructions, he closed his eyes and focused solely on the Null Core.

Concentrating, he channeled Fire energy into it, guiding the flow carefully.

At first, it was a faint warmth, but as he poured more power in, the transformation became clear.

Like a tiny spark igniting a coal, the Null Core began to burn, filling with vibrant Fire energy.

But he wasn't done yet. he focused intently and directed the energy from both of his Fire cores into the middle one.

As the two flames collided, something extraordinary happened—a chemical reaction

Opening his eyes, he grinned. "It worked."

The blue flames danced and crackled around his fingertips.

Feeling tempted to test it out, he raised his arms and unleashed the flames like a giant flamethrower.

The blue fire roared to life, scorching everything in its path.

Rocks melted instantly under the intense heat, turning into glowing puddles of lava.

'Sweet, this is awesome!'

If this was the result of combining two fire cores, he could only imagine what would happen if he combined two lightning cores.

His attack would be so deadly that he could one-shot anyone at the Demon King level.

If he got really lucky and had the element of surprise, maybe even a Demon God assassination could be pulled off.

With careful planning and the right conditions, he could probably turn the tide in his favor.

[DING!]

[System: Host, your current durability and endurance would not be able to withstand the power coming from two lightning cores. It would completely obliterate your body.]

"Wait, what?" he paused, a frown replacing his excitement.