The Omnipotent System-Chapter 243: Fighting A Boss

His heart pounded. His mind raced.

That was close.

Too close.

But before he could even process it—

BOOOOM!

Jack intercepted the boss's follow-up attack, his fist slamming into the Tyrant's skull with enough force to send a shockwave through the entire dungeon.

The impact sent cracks splintering through the stone. The monster's head snapped sideways, but—

It didn't go down.

Instead, it twisted unnaturally, its black mist tendrils coiling around Jack's arm like a living thing.

Jack's grin faltered.

SHHHHHRK!

Black mist spikes burst from the tendrils, aiming straight for his chest—

But then—

BAM!

Elamenor appeared out of nowhere, his fist colliding with the Tyrant's midsection in a devastating body blow. The sheer force of the punch caved in a portion of its armored torso, sending the mist rippling from the impact.

The boss skidded backward, its mist tendrils unraveling from Jack's arm.

Elamenor rolled his shoulders. "That's not enough to hurt you, is it?"

Jack flexed his fingers, then cracked his neck. "Nah."

But the Tyrant wasn't done.

Its red runes flared again—

SCREEEEEECH!

The mist around it expanded suddenly, covering half the battlefield. Then—

It vanished.

Kieran's breath caught. "Where—"

SLASH!

Out of nowhere, Jameson's sword clashed against something invisible, sparks flying in all directions. The Tyrant had reappeared mid-air, its clawed hand crashing against Jameson's blade.

For the first time, Jameson's expression shifted—just slightly.

The boss wasn't just fast.

It was adapting.

But Jameson? He was faster.

SHINK.

A single stroke.

Jameson's blade flickered.

A deep gash tore through the Tyrant's torso—

BOOOOM!

Another shockwave erupted. The monster was blasted backward, its mist dispersing—

But then—

The runes pulsed again.

And this time—

The mist solidified.

Kieran's stomach dropped.

The black mist hardened into armor, reinforcing the Tyrant's already monstrous defense. Its eyes—empty sockets of darkness—locked onto Jameson.

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Then—

BOOOOM!

It lunged.

A streak of obsidian ripped through the battlefield. The sheer force of its charge shattered the stone beneath it.

Jameson vanished.

Kieran's eyes darted around. Where—

FWOOOSH!

A shadow blurred past him.

Then—

SHINK.

A slash appeared across the Tyrant's chest. Deep. Precise.

Jameson reappeared behind the boss, sword still humming from the strike.

But—

The wound?

Already closing.

Kieran cursed under his breath. "You've gotta be kidding me…"

The boss wasn't just adapting.

It was evolving.

Its mist rippled, shifting, twisting—

Then—

BZZZZZZZZZZZT!

A sudden pulse froze the air.

Erren's fingers moved rapidly across her interface. "Analysis complete."

She glanced up. "Its core is shifting locations every seven seconds. We have a three-second window between shifts."

Jack grinned. "So we just hit the core?"

Erren didn't look up. "If you can."

Jack cracked his knuckles. "Watch me."

Then—

BOOOOOM!

He shot forward, faster than Kieran could track.

The air howled.

Jack dropped from above, his fist pulled back, black lightning crackling around it—

"HAAAAAH!"

His punch connected.

The dungeon shook.

The very air trembled.

The boss buckled.

Its mist armor shattered.

The core was exposed.

A twisting, writhing mass of energy, pulsing violently.

Kieran's breath caught.

Now was the chance.

Arianna moved.

Just one step.

The entire dungeon dimmed.

A cold, suffocating pressure filled the space.

Then—

A single point of light flickered between her fingers.

Just a tiny, glowing speck.

But—

The moment it appeared—

Kieran's entire body screamed.

That's not normal magic.

Then—

Arianna flicked it forward.

The tiny speck vanished.

For a second—nothing.

Then—

BOOOOOOOOOOOOOOOM!

A blinding pillar of energy erupted where the Tyrant stood.

The sheer force of it sent cracks racing up the dungeon walls.

The shockwave slammed into Kieran's chest, nearly sending him flying.

The boss shrieked.

Its mist twisted, writhed—

Then—

SILENCE.

The light faded.

The dust settled.

The Razorbound Tyrant stood frozen—

A gaping hole where its core once was.

For a moment, nothing moved.

Then—

CRACK.

Its obsidian armor fractured.

The mist evaporated.

And then—

SHHHHHHHRK.

It crumbled.

Kieran stared.

It was just… gone.

No explosion. No final scream.

Just—nothing.

[RAZORBOUND TYRANT DEFEATED!]

[+150,000 XP]

[+MYTHICAL ARTIFACT DROP!]

Kieran barely noticed the notifications.

He was still trying to process what he just witnessed.

Jack stretched, cracking his back. "Man, that was fun."

Elamenor snorted. "It lasted longer than I expected."

Erren tapped her interface. "Uploading combat data."

Jameson sheathed his sword without a word.

Arianna?

She didn't even react.

She just turned to Kieran, her expression unreadable.

"You're learning," she said simply.

Kieran swallowed.

He didn't know what the hell they were—

But one thing was clear.

They weren't normal.

And now—

He was in too deep.

Kieran's breath was still uneven. His mind spun with everything that had just happened. The others moved like this was routine, but for him?

This was insane.

Jack, Elamenor, Jameson, Erren, and Arianna—none of them reacted like normal people would. They weren't surprised, exhausted, or even wary after the fight.

They were just… moving on.

Jack cracked his knuckles, rolling his shoulders like he was just getting warmed up. "Alright, what's next?"

Elamenor scoffed. "Hopefully something stronger."

Jameson remained silent, but his gaze flickered briefly to Arianna, as if waiting for her input.

Erren finished tapping on her interface. "Combat data uploaded. I'll analyze the Tyrant's adaptive evolution pattern later."

Arianna simply turned away, stepping toward the dungeon's next chamber. "We move forward."

Kieran hesitated.

That fight—what was that light she used? That tiny flicker that obliterated the boss in an instant? That wasn't just magic. That was something else. Something terrifying.

And yet—

"You're learning."

Those words lingered in his head.

Like she expected more.

Like she knew something he didn't.

Kieran clenched his fists. No matter how strong they were, no matter what they were—he wasn't going to be left behind.

He took a breath. Then another.

And followed.

As the team moved forward, the dungeon's atmosphere shifted. The air grew heavier, tinged with something… wrong. The walls, once cracked stone, began to change—pulsing, shifting, like something alive.

Kieran frowned. "Is it just me, or is this place…"

"Changing," Jameson said, his voice low.

Arianna stopped.

Then—

FWOOOOOM.

The walls around them pulsed violently. A deep, guttural hum resonated through the air.

Jack's grin widened. "Now we're talking."

Erren's interface flickered. "Something's interfering with my scans. Unknown energy source detected."

Kieran's gut twisted.

Then—

A single word appeared in his vision.

[WARNING: ??? PRESENCE DETECTED]

His pulse quickened.

Whatever was ahead—

It wasn't just another boss.

It was something worse.