The swirling energies of the Void Nexus crackled with tension as Nullus emerged fully from the shadows. His form was ever-shifting, a blend of spiked armor, roiling black mist, and a face that seemed to flicker between countless terrifying visages.

"Such fragile mortals," Nullus sneered, his voice resonating with an otherworldly chill. "Do you truly believe you can stop me? I am entropy incarnate."

Kei stepped forward, her frost blade glowing brighter in defiance of the chaos around her. "We've fought gods, titans, and monsters. You're just another stepping stone to peace."

Ignis flared to life beside her, her flames dancing wild and unyielding. "And when we're done with you, there won't even be ashes left!"

Lucifer clapped his hands slowly, his eyes glinting. "Beautiful speeches, truly. Let's just hope the follow-through lives up to the hype."

Nullus growled, the Nexus shuddering under his power. "Enough talk. Let the void claim you!"

The Battle Begins

Nullus extended his arms, and waves of shadow energy cascaded toward the group. Kei and Ignis leapt into action, their respective powers clashing against the incoming attack. Kei's frost created shields of crystalline ice, while Ignis's fire tore through the darkness like a blazing comet.

Moon Knight dashed to the side, throwing crescent blades charged with celestial energy. The projectiles struck Nullus's form, but they barely left a scratch.

"His essence is tied to the Nexus!" Raven shouted, hovering midair with dark tendrils of magic spiraling from her hands. "We need to sever his connection to this realm, or he'll keep regenerating!"

Kei nodded. "Then we split up. Raven, Moon Knight, and Lucifer—find the source of his power. Ignis and I will keep him busy."

Lucifer smirked. "Finally, some fun."

Kei and Ignis vs. Nullus

As the others broke off, Nullus turned his full attention to Kei and Ignis. His body erupted into tendrils of darkness that whipped toward them, each one capable of ripping through solid rock.

Kei somersaulted over one tendril, her frost blade slashing cleanly through another. "He's fast!"

"Let's see if he's fireproof!" Ignis roared, unleashing a torrent of flames that enveloped Nullus. The creature roared, his form flickering like a glitching hologram, but he quickly reformed.

"You'll have to do better than that," Nullus taunted, his voice reverberating through the Nexus.

Kei planted her blade into the ground, summoning a wave of icy spikes that surged toward Nullus. The spikes pierced his form, momentarily rooting him in place. Ignis capitalized on the moment, conjuring a firestorm that rained down from above.

The combined attack forced Nullus to stagger, his form destabilizing. But his laughter echoed even louder. "Impressive. But the void is infinite. You cannot destroy me!"

The Source of Power

Meanwhile, Raven, Moon Knight, and Lucifer raced through the swirling chaos of the Nexus, dodging waves of energy that lashed out at them.

"The Anchor," Raven said, her voice strained. "It's here somewhere. That's what's fueling him."

Lucifer slowed, his eyes scanning the shifting terrain. "Ah, there it is." He pointed toward a massive black crystal embedded in the center of a swirling vortex.

Moon Knight frowned. "That's no ordinary Anchor."

"It's a corrupted fragment," Raven confirmed. "We destroy it, we cut off his power."

Lucifer's smirk grew. "Destroying things is my specialty."

As they approached the crystal, shadow creatures emerged from the vortex, their forms twisted and grotesque.

Moon Knight drew his crescent blades. "We'll handle them. Raven, take out the Anchor."

Lucifer stepped forward, cracking his knuckles. "Allow me to even the odds."

Breaking the Anchor

Raven chanted an incantation, her magic wrapping around the corrupted Anchor. The vortex fought back, sending shockwaves through the Nexus, but Raven's resolve held firm.

Moon Knight and Lucifer worked in tandem, cutting through the shadow creatures with precision and power. For every creature that fell, two more seemed to take its place.

"Raven!" Moon Knight shouted. "How much longer?"

"Almost there!" Raven's voice wavered, the strain evident.

Lucifer raised a hand, summoning a burst of hellfire that consumed a swarm of creatures. "Hurry up, love. We're not immortal."

With a final surge of power, Raven's magic shattered the Anchor. The vortex imploded, sending shockwaves rippling through the Nexus.

The Turning Tide

Back at the main battle, Nullus howled in agony as his connection to the Nexus was severed. His form flickered, growing weaker with each passing moment.

Kei and Ignis pressed their advantage, their attacks landing with greater impact.

"This is for every world you've destroyed!" Kei shouted, her frost blade glowing with a blinding light.

"And this is for thinking you could mess with us!" Ignis added, her flames roaring like an inferno.

The combined force of their attacks struck Nullus directly, shattering his weakened form.

Victory... and a Warning

As Nullus disintegrated, the Nexus began to stabilize. The group regrouped, their faces weary but triumphant.

Lucifer dusted off his jacket. "Well, that was fun. Let's never do it again."

Moon Knight glared at him. "Don't think this makes us allies."

Lucifer smirked. "Oh, I wouldn't dream of it."

Kei looked at the remnants of the Nexus. "It's over. For now."

Raven's expression darkened. "Nullus was powerful, but he wasn't working alone. There's something—someone—bigger out there."

Lucifer's smile faded. "She's right. Nullus was just the beginning."

Ignis groaned. "Of course he was. We never get a break, do we?"

Kei sheathed her blade, her resolve unshaken. "Then we'll be ready. No matter what comes next."

To Be Continued...