Villain: Ultimate Mutation System in the Alternate World

The three-headed dog loomed over the ruined cityscape. Its 20-floor body was huge and monstrous, towering like a behemoth. It had just finished consuming the last of the decaying zombie-corrupteds. Each head had metallic teeth and crazy red eyes. Its once-fleshy body was now compact and solid like hardened steel.

Below, its claws had turned into sharp blades. They looked powerful and could easily cut through buildings.

He observed the creature's transformation, and had some important questions in mind.

'Why do corrupted always grow larger to get a power up?' he muttered to himself. "Size alone won't save you, especially not against someone like me."

"RAWWWWWR!" The creature's thunderous roar shook the city, crumbling buildings that had withstood his previous scream.

He braced himself against the shockwaves, noting the surge in the creature's power and size.

"Quiet down," he shouted back over the deafening noise.

However, the three-headed dog did not listen and instead raised its voice even louder.

"Here we go again," Reign shook his head and raised his weapon.

ZZZZZZ!

The railgun round hit the creature's forehead with a clean, piercing force. But before it could exit the other side, the wound began to heal in real-time.

Its flesh knitted itself back together at an astonishing speed, so fast that by the time the projectile passed through, the creature's head looked perfectly unharmed again.

"That is borderline cheating," Reign sighed.

He wasn't genuinely worried; instead, he just wanted to highlight the creature's unfair skill.

Even the giant humanoid and the snake he had fought before hadn't shown such quick and extreme regenerative abilities.

Ironically, this came from him, someone who literally possessed the greatest cheat called the system.

"Let's see how you handle this," he muttered under his breath.

This time, he switched mode to rapid fire.

ZZZZZZ!

ZZZZZZ!

ZZZZZZ!

He unleashed shot after shot at the creature's heads. He aimed to overwhelm its regenerative rate.

With each successive shot, the railgun discharged faster and faster round, striking the middle head brutally.

The impact of the rapid-fire caused the creature's head to jerk violently, bits of corrupted flesh and bone splintering off with each hit.

Smoke and steam hissed from the wounds as the railgun projectiles penetrated deep, disrupting the creature's regenerative processes.

'It's not enough ,' he thought to himself.

In order to increase his fire power, he materialized two additional railguns in his free hand and another on his shoulder.

With these additional weapons at his disposal, he intensified the barrage, firing tens of rounds per second.

The air around him crackled with spark of red electricity as the rapid succession of projectiles hammered into the creature's heads, overwhelming its ability to heal.

And for a moment, it appeared to be working well enough, as the head, despite its size, was completely mangled, leaving only the neck remaining.

However—

When he stopped, the mangled neck of the creature began to churn with an unsettling, grotesque motion.

And in the next moment, three more heads rapidly protruded from the torn flesh as if the previous damage had never occurred.

"Don't tell me I have to completely kill this thing in one go to finish it off?" Reign wondered aloud, frustration evident in his voice.

It wasn't that he lacked the capability to do so—if he pushed himself, he believed he could find a way to destroy the whole body.

The real issue was in the fact that he still needed the creature's parts intact for experience and Dark Dust points.

Completely decimating it wasn't an option.

'I need to find another way, ' As he pondered his next move, he weighed his options carefully.

'Will this work?' an idea sparked in his mind. It was his recently acquired skill, True Death.

'That skill lets me bypass life-saving tricks. So theoretically, it should work on cheat like regeneration too' he mused, a spark of idea flickering in his mind.

This was also the perfect opportunity to put the power of that skill to the test.

'Let's see...' Reign muttered, activating the skill for the first time. He hadn't had anyone to test it out on before.

The death energy from his third core surged through his body, a cold, dark energy flickering at his fingertips as he channeled it into one of his weapon.

At first, he expected it to consume a lot of energy, but the reality was much harsher. As he tried to feed it to his rail gun round, he felt his third core deplete completely.

'This thing cost too much,' he grumbled, realizing the toll (True Death) had taken on his energy reserves.

And he witness in real-time the effect of all those concentrated energies.

The intense power began to deteriorate the railgun itself, forcing him to use his Bone Control to prevent it from crumbling away.

As his railgun held on, he watched as the three-headed dog's heads opened their maws.

He sensed a shift in the creature's energy as concentrated miasma began to form within each head.

Unlike before, this miasma was not merely toxic air; it burned with a dark intensity, emitting black flames that heated the surrounding air.

"So you plan to use your trump card too? Let's see who has the bigger gun," Reign challenged, excited to see the aftermath of this clash.

He infused more negative and lightning energy into his weapon, intensifying its charge.

His increased conductivity due to having a more metallic bones amplified the magnetic field within the barrel, stabilizing the spinning projectile effortlessly

As the humming sound grew louder and louder, the air around him also started to heat up. More and more arcs of electricity began to leak from his body, drawn towards the railgun.

While he stabilized the energy , he waited for the perfect opportunity to use it.

'Come on, hurry up and use that trump card of yours, 'he thought.

As the three-headed dog unleashed its black flames, the separate streams of fire merged together into a single, massive jet flame of darkness.

The fire intensified, growing stronger and wider, resembling a colossal flamethrower aimed directly at Reign.

He stood firm, eyes fixed on the approaching inferno

Instead of retreating, he stood his ground. And with a confident expression, he unleashed the charged round.

ZZZZZZ!

Dark-red streak of lightning crackled through the air, followed by a thunderous roar as the projectile shot forth from the barrel.

The charged round flew into the flame with such incredible speed and violent force that it seemed to defy the laws of physics.

Normally, such temperature would have melted the outer shell of any other ordinary projectile.

However, this one was different.

Its momentum was so strong that the flames atoms barely had time to react as it pierced through them like a bullet through paper.

Reign, on the other hand, also brushed against the dark flames, but they were not hot enough to even warrant dodging.

After the projectile completely passed through the flames, it struck the creature's chest .

A shockwave rippled outward from the point of impact, sending the three-headed dog staggering backward

The force of the blow cracked through its thick metalic hide, eliciting a deep, roar of anger that echoed across the battlefield.

"RAWWWWWWWWWWR!"

'Did it even work?' Reign muttered with uncertainty .

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