Transmigrated with my corruption system

BOOM!

An explosion suddenly rocked out, emanating from Thunderblade’s body sending Ulric skidding backward as he stared as the transformation unfolded.

The air around the collapsed figure trembled violently before finally rupturing. Swathes of golden energy tore outward, flooding into Thunderblade’s body in an entrancing manner. His form became covered in a radiant golden hue.

The waves of energy grew only more intense as the seconds slipped by, until they grew strong enough to lift his body into the air.

The process lasted for a couple of minutes before the energy slowly receded, lowering him back to the ground.

The moment the last drop of golden energy drilled into his body, an overwhelming aura ripped outward from Thunderblade, spreading for thousands of meters in an instant.

The sky above him erupted, raining wisps of golden energy wherever his aura reached, marking the birth of a C-rank being.

When it all receded to reveal his transformed body, Ulric’s brows arched slightly.

He had expected the process to take at least a few hours, yet it had barely lasted a couple of minutes. Still, the aura seeping from the man was undeniable.

Arcs of lightning crackled across his frame. Their once-blue color had faded into a far deadlier hue. The arcs had thickened, growing more potent and violent.

If he looked closely enough, he could see a faint mystical energy wrapping around Thunderblade’s body protectively.

The bruises that had lined his body had vanished. His slashed arm hadn’t regrown, but the wound had closed into a clean stump.

As Ulric inspected him, Thunderblade did the same. A boisterous laughter slipped from his throat, filled with uncontainable joy.

He could feel the monstrous power thrumming deep inside his body. His dream of breaking into C-rank had finally been fulfilled.

More than that, his fading vitality had been replenished, adding multiple years to his lifespan. Everything he had ever wanted... he now possessed.

He was no longer some lowly powerhouse in a small human base. He could finally claim the respect, authority, and dominion he craved in the major human strongholds.

Every thought flashing through his mind only fueled his laughter further. Then his gaze tilted down to the stump where his arm had once been.

It hadn’t regrown... but if this was the cost for the power he now wielded, it was barely anything in return.

Raising his head, he stared at the black-robed youth ahead. Multiple emotions welled up inside him, leaving him unsure what to do next.

This youth had humiliated him. Toyed with him. Shown him the cold reality that he could have ended the battle at any moment. Yet he was also the one who had helped him ascend.

Thunderblade contemplated the thought, relishing the satisfaction of how the tables had turned.

Finally, he spoke, having come to a decision.

"For this," Thunderblade muttered, staring at a flickering ball of lightning in his palm, reeking of deathly energy enough to kill his previous self several times over. "I will grant you an honorable death."

"Death... I don’t know about that," Ulric smiled, finished with his appraisal. A glint of anticipation flashing across his face.

Seeing the youth curl his fingers into fists as if preparing for another round of battle as if nothing had changed. Thunderblade’s brows furrowed.

"You still don’t understand, do you?" he muttered, curling his own fists and crushing the ball of lightning into wisps of energy.

The sky above darkened once more. The clouds stretched for tens of thousands of meters as thunder rumbled far more violently than before. Flashes of purple lightning crackled every now and then.

"The power I wield now... is not something you can go against." He didn’t fight alone anymore. The realm itself lent its power to him. His body was flushed with mana, making any attack far deadlier than the youth could have ever imagined.

Hearing his words, the smile on Ulric’s face only widened. Before he spat:

"Show me."

As the words left his lips, Ulric extended his hands once more. This time, he was done holding back.

Calling to his darkness, it ripped from the air behind him. It spread for hundreds of meters in an instant, then stretched out to a thousand and beyond.

Thunderblade’s brows arched slightly. He had already figured the youth had been holding back. Now, seeing the darkness stretch to thousands of meters. Surpassing even his own ten-thousand-meter range, his lips couldn’t help but twitch.

It seemed he had sorely underestimated him.

Before the thought could fully form, his breath nearly hitched at what the youth did next.

From the darkness, Ulric clenched his hands. The darkness coalesced in response to his will, forming a massive abominable blade stretching fifty meters long. Runes and sigils shimmered across its surface.

By the aura alone, Thunderblade could tell it was several times stronger than the one the youth had conjured earlier.

But it didn’t end there.

This time, Ulric didn’t stop at one. Another blade formed at its side, then another.

Until tens of abominable blades hovered in the air behind him.

Even Thunderblade felt a twinge of shock.

He didn’t get long to process it. With a flick of his wrist, Ulric sent the blades flying. They streaked across the air with a screeching death-wraith sound.

All of them shot toward Thunderblade while Ulric charged right behind them.

This was astounding. Thunderblade inhaled sharply. With this array of blades, it was more than enough to slaughter a horde of peak D-rank beings a hundred times over, including his previous self.

It was simply too monstrous.

But even then, compared to the power of a true C-rank being, it still paled slightly.

He could see now why the youth thought he stood a chance. Smiling faintly, Thunderblade curled his fingers.

Instantly, a sea of thunderbolts crashed down with terrifying power. They flashed with ethereal purple energy, their frames as thick as massive tree stumps.

His smile widened as they hurtled toward the dark-robed youth, only for it to freeze suddenly.

Multiple mirages split from Ulric.

In the next instant, ten clones indistinguishable from the original, were all charging toward him.

Hmph! Thunderblade snorted. So what if he could form clones? He would simply crush them all.

With that thought, the bolts of lightning split and struck each frame. They tore craters several meters deep into the ground from their terrifying force.

But with each strike, Thunderblade’s brows furrowed deeper.

As the lightning hit, every clone dissolved into wisps of dark energy.

Until the last one was destroyed.

Yet the blades were still charging at him.

Where did he go? Thunderblade mused.

He didn’t have to wonder for long.

The air before him rippled. A new presence emerged, already in a striking stance. Ulric’s fists crashed into his bare back while the blades all struck true in the next instant.