Epic of Vampire Dragon: Reborn as a Vampire Dragon with a System

"W-What sort of magic is this?! There's no way that being has the power of a dungeon! I have never seen a mobile and talkative dungeon before like this…" Muttered Silver, as he desperately attempted to resist the powerful pressure from Erebus Dungeon Cage!

His fists and legs hit the walls and floor, the ceiling as well, and he unleashed countless beams, slightly generating more and more cracks around the Dungeon Cage! Erebus quickly realized that this man couldn't be easily contained within this ability, but he won't be able to conjure it in a long while after using it once!

Erebus continued to infuse his dark energies and even some cosmic energy into the dungeon cage, enhancing its durability so he could allow Rust to take over the walls in time!

He even shaped the interior of the dungeon, generating enormous spikes inside that began to pierce through the body of Silver, sometimes he evaded the spikes but most of the time he was taking massive damage over his body and soul. Although his body was all mechanical and could regenerate through the creation and fusion of nanobots into the body, even he had a limit based on his quantity of divine energy!

CLASH! CLASH! CLASH!

"If I can manage to kill him before Rust is done it would be for the better…" Said Erebus, as he infused even more Cosmic and Divine Energy inside the Dungeon Cage, completely investing his reserves into it!

Silver was being bathed in blows, and agonizingly fighting back, as the dungeon cage's walls continued to crack and shatter, until suddenly, a large hole emerged in a wall!

CRAAASH!

His mechanical hand came out of it, Erebus felt weakened as he had used a lot of his energies, but Rust had at least managed to take over the walls, and quickly converted them into a giant slime made of liquid metal! The enormous monster began to move towards Silver, quickly covering the breaking dungeon cage with his gigantic body!

CLAAAASSSHHHH!!!

"W-Whaaat?!" Asked Silver in shock, as he found the liquid metal constantly trying to consume him! He fought back, as he unleashed all sorts of powerful attacks, enormous beams, slashes, punches, everything! He even attempted to devour the liquid metal himself!

However… somehow, all the battles he had done, all the experience, everything… it all became pointless against such an overwhelming force, he had never felt this frightened before in his entire life! Just when he had taken a hold of the egg and everything back then, and now… he was dying miserably here?!

"No…! NOOOOOO!!!"

Silver cried, as Rust took advantage of how weakened Silver ended after Erebus' tricky and cunning Dungeon Cage, and quickly crushed his entire body and devoured him, alongiside his divine soul!

His last cry of agony was the last thing everybody heard, as Rust quickly jumped over the city below, looking into the wall. Erebus flew at his side, it seems that Chaos had already reached the walls, and something else was occurring there now.

Everybody decided to quickly move on, each foe sent against them had been slain by now, and Yuki alongside Boxy were also just back. Before the Swamp Titan were to come back here, they had to quickly end this, and assist Chaos!

"Hmph, he died quite miserably… I guess we had grown rather strong ourselves…" Said Erebus.

"Erebus you say that when you clearly did a pretty scummy thing!" Said Rust.

"Haha… I guess in war everything goes." Said Erebus with a devilish smile. In battles what mattered was wining, not how you did it.

…Meanwhile, Rot had grabbed the core of Belphegor, the last thing he left behind. She began to activate her Necromancy powers and infused her cosmic, divine, and necrotic energies inside the core, igniting it with an enormous quantity of phantasmal flames…

"Belphegor, come back, you can't leave us yet!" She cried, unleashing her necrotic powers, as the one that could manipulate death itself infused her emotions into the crystal. A part of her soul was cut and given to the core, finally giving it enough sustenance to… awaken.

FLUOOOOSSSH!

Enormous quantities of flames emerged from within the core, red and blue flames covering everything with a beautiful and radiant light like never ever before. It was so beautifully pleasing to the eyes of everybody looking that they couldn't help but stop moving to see what was happening.

And then, Rust suddenly felt like there was still something missing, a physical body, something to sustain Belphegor's phantasmal body. He quickly cut down a large piece of his enormous liquid metal body, which flew towards Belphegor's flames, fusing with them!

The liquid metal quickly fused with his soul and the power that Rot gave to him, the metal pieces quickly shaped themselves as armor pieces, gaining the color of red and orange, and even a skull-shaped helmet emerged, alongside an enormous blazing sword.

A knight covered in flames emerged, as tall as three meters, with a skull-shaped armor, and a blazing soul moving his armor body, there was no more bones, just blazing steel capable of burning through everything.

The eye sockets within the skull-shaped armor were filled with fiery red flames, as Belphegor… woke up.

"Ah… I… Didn't I die?" He wondered, looking at everyone. "Have you all become smaller?"

"No, you just got really big." Said Rot. "Welcome back. And no, you didn't technically die, but you lost a very big piece of your soul, it must have been painful, but I revived you through necromancy, as long as that core you left is intact, it is possible."

"R-Rot… So I actually… I… I am filled with so much happiness!" Cried Belphegor, as he began to cry small tears which were actually flames falling from his helmet. "My lord Chaos, I almost left you behind!" Belphegor couldn't help but feel so sorrowful yet so happy he was back. He had even seen his entire life go through his mind in that moment.

"But wait!" He said, quickly gaining his composure. "Where is Brutus?!"