The Summit Battle

Kael and Aveline stood side by side, their bodies covered in wounds and dust. Despite their exhaustion, their determination never wavered. Prisma, whose holographic body was starting to show cracks, let out a low but passionate voice.

"This is our last chance. You must destroy Argus' power core before he can restore his generator."

Kael raised his sword high, blue light gathering on the blade, a technique that combined the power of his sword with the magical energy from Prisma. Meanwhile, Aveline created a magic circle that swirled around her, emitting a mixture of fire and lightning.

"This time, he won't have time to counterattack," Aveline muttered confidently.

Argus attacked first, swinging his giant spear that now emitted waves of electromagnetic energy. The ground shook, and the ruins around them exploded. Kael leaped forward, using his sword to block the attack. The clash of energies created a massive explosion that shook the entire field.

"Aveline, now!" Kael shouted, holding back the pressure of Argus' spear with all his strength.

Aveline leapt into the air, her magic circle unleashing a hail of energy spears that slammed into Argus hard. Each strike created a small explosion that began to weaken Argus's metal armor.

However, Argus did not back down. With a swift movement, he spun his body and threw Kael far back. Kael slammed into the wall, blood dripping from the corner of his lips.

Kael staggered to his feet, his hand gripping his sword tightly. He looked at Prisma. "Prisma, is there any other way to strengthen my attack?"

Prisma glowed for a moment before giving her answer. "I can channel all my energy into your sword, but that will drain the last of my life force."

Kael was silent, but his eyes were full of determination. "Do it. This is the only way we can win."

Meanwhile, Aveline changed her strategy. She created a large fire golem that attacked Argus from all sides, trying to distract the enemy. With hands starting to shake, she focused all her energy on her final spell.

"We only have one chance," Aveline muttered, her eyes gleaming.

The Final Strike.

Kael stepped forward with his sword now shining like a star. Prisma's energy radiated powerfully, enveloping him in a blue light that cut through the air. Argus, despite his injuries, focused his attacks on Kael, swinging his spear with a force that could shatter mountains.

However, Aveline came from the side, leaping with her fire golem that exploded near Argus' head. The explosion sent Argus reeling, giving Kael an opening to attack.

With a powerful shout, Kael leaped and plunged his sword straight into Argus's core in his chest.

Argus' core exploded in a flash of light, shattering his metallic body into a thousand pieces. Argus's screams echoed before finally fading into silence.

After the explosion died down, Kael fell to his knees, his body wounded and exhausted. Prisma, now just a ball of dim light, spoke one last time.

"You have surpassed your limits. Kael, Aveline, you are true heroes."

Prisma's light slowly faded, leaving Kael and Aveline in silence. Aveline approached and helped Kael to his feet,

"We did it," Aveline said, her voice soft.

Kael smiled, though blood was still dripping from the corner of his lips. "We made it together."

However, before they could celebrate their victory, a new voice echoed from the ruins. "Great. But this is just the beginning."

They turned to see the silhouette of a man standing atop the ruins, wearing a black robe with strange patterns that shimmered like stars. He carried a mysterious artifact that seemed to be the key to something greater.

"Who are you?" Kael asked, though his body could barely stand upright.

The man simply smiled, his eyes glowing red.