Shortly past midnight
April 6th, 71 BNM
North midland Equestria
Citadel fortress
Catacombs, basement atrium

As the black magic blasted her against the wall, threatening to crush her, Teal gasped aloud as a green burst of her own magic let loose in a pulsing blast, cancelling it out and sending a shockwave through the room.
“You were using us, I trusted you, I idolised you, I thought we had an understanding!”
“If things that must occur are to occur, I must control EVERY asset, even you all!”
“So that is all we are to you? Assets, slaves like Gaudium!?”
Teal angrily fired a green pulse towards Siral, but was caught off guard as he disintegrated into a black cloud that absorbed the green magic, and then shot back to from in a glowing shackle around her ankle. Hurled around the circular walls as if dragged around them, Teal Quirt was slammed into the floor after a half circle around the sealed chamber.
All the while, in the centre, Gaudium struggled to keep the other 5 under sleep, as his purple hued red and yellow eyes showed signs of strain. Purple magic glowed from his multi-animal limbs and head horns, but it was much to manage with 5 beings.
Noticing this, Teal’s eyes narrowed in thought, before she instinctively made a choice. Raising her ape arm, she fired a series of green beams across the room, blasts hitting the walls and a few alter tables. A purple shield protected the 5 still under, Iena herself off her alter table and still unconscious on the floor. But the blast made ‘Gaudium’ flinch, and the shield and control wavered slightly.
A black magic suddenly gripped Teal once again, as Siral angrily hurled her upwards to the ceiling.
Bricks and cement, along with dirt, fell to the floor as Siral crashed the scorpion/ape hybrid upwards into the higher levels, before he surged up in a flash of black smoke.
Straining, Gaudium refocused his efforts on keeping the others under. But at that moment, a dark blue glow began to light up his face as a snakelike being slithered up, delirious, but angry.
Iena rose, gaining full consciousness as Gauidum glared at her, rooted to the spot as he focused his magic on keeping the other 4 under, and also shielding himself.
Narrowing her gaze, the naga/changeling/siren hybrid charged her own magic, looking at Gaudium with venom in her eyes:
“You serve Siral, no mind of your own. If he goes, you’ll be nothing...”
Her magic flared outwards, filling the room, the scales on her lower body seeming to reflect the light like a thousand mirrors as Gaudium was forced to shield his body. But from his form, a purple silhouette of magic appeared, shaped like him, and lunged forwards through the blinding lights to engulf Iena in a consuming black and purple fog.
As she felt her body being almost shocked by the magic, she eyed around the still dormant 4 others, hurling a slicing shockwave towards the purple light pouring like smoke vapour from the being attacking her in the centre, towards the alter that held Satio’s unconscious, orange skinned gelatinous minotaur shape.
As it was severed, Gaudium recoiled, grunting in shock as his eyes flared black, the enslavement of Siral deep in his psyche, and not much else. But this otherwise empty minded being was powerful, very powerful.
‘Gaudium’s’ purple magic flew from his eagle clawed hand, and with a single slash wrought a sliced portal behind Iena on the wall. A purple shockwave sent her reeling through it, but in a desperate bid she hurled out her naga tail like a whip, blue magic engulfing it to extend its reach.
Scales wrapped around Gaudium’s throat, and dragged the Draconeraqus servant of Siral through the portal he’d created.
As their screams left, the 4 remained engulfed in a purple mist, but among them, the orange minotaur stirred, awakened by his fall triggered by Iena’s magic blast.
His vision clearing, his mind filled with all that had occurred, Satio looked around desperately, his bloblike form stirring and shifting as he glanced around at the dorment Golmov, Odi-Viscer and Ave-Dol. His glance looked upwards now, to the hole where blasts of magic and shouts of Citadel guards echoed down.
But it was the diminishing portal before him that Gaudium had been dragged through by Iena that got his attention. The portal shrank quickly.
Hurling out a dozen orange tendrils from his bloblike mass, Satio shuffled/oozed forwards, orange magic glowing on his body as he forced the portal to remain open, his form quickly squeezing through it like an octopus through a tiny hole in a ship. As soon as he was through, the portal remained forced open by his orange magic.
Left alone, the 3 still in the chamber were left dormant, but all beginning to stir. The purple haze over them slowly diminishing as their caster, and by extension Siral, was no longer there to keep it up.

Citadel, upper catacomb hallways

A few guards retreated as the stone and dust rose in the tunnel, and black smoke filled the hallway.
But amidst it all, a Unicorn fired back waves of spells, as a green hued creature fired back, deflecting whatever Siral sent her way.
As the two guards looked on however, the Unicorn, their master, glimpsed them.
At that instant, a silver glint overcame their eyes, and they charged forwards in a battle stance, one charging her horn, the other preparing his crossbow.
The scorpion bodied, ape torso’d creature flared her 4 horns, her face scowling as she saw Siral hover backwards rapidly, while two guards charged her. One fired a crossbow bolt, but her green magic made it melt in midair, and send the molten metal and wood right back to burn into the Earth Pony guard’s face, his screams echoing as the Unicorn mare fired a shot into Teal’s face.
The yellow magic rippled off of Teal’s passive shields, and the being of Envy grew annoyed as she advanced, eying the Unicorn while yelling ahead to the hallway, a black smoke vanishing:
“Coward! Us and your guards serve fight battles you scheme, but cannot handle yourself!”

That same black smoke reached far into the hallways, and inside of a storage vault, a small cabinet of Alicorn amulets was unearthed, each one teleported and engulfed in black smog as sounds of battle filled the distant hallways.

A single swipe of a green hued scorpion claw and she had the Unicorn mare by the neck, before slicing it like scissors to thread.
But the Earth Pony she’d burned with his own molten crossbow bolt then reeled and went quiet. A black and grey smog formed, though she noticed a distinct red glow at its core. And it was too small to be Odi-Viscer’s eyes.
A ringing shockwave of magic nearly burst her eardrums, but not before bricks and debris formed into a solid brick wall between her and Siral plus the blinded guard, and began to barrel towards her.
Caught as it crashed into her, Teal held fast as the solid wall ploughed her down the hallway, crashing her into the wall where it turned to begin going down some stairs. Shifting beneath the rubble, green magic blasting it away, she saw Siral striding forwards in the black magic laden hallway, a red Alicorn amulet, one of a few she’d seen and knew he’d crafted from a dozen of more harvested ones, dangling from his neck.
Beside him, the near blinded and burned Earth Pony fell to the ground, black magic sapping the life and magic from him as Siral’s own body glowed a darker shade, eyes lighting up as the power flowed into him. As she readied to fight however, Siral breathed out, and without a moment’s hesitation, hurled the red Alicorn amulet aside.
Now, Siral began to change, his entire body becoming shadow itself. Beginning to shift, a warning blared through the castle to the guards on all levels to lock down, to subdue the creatures that had rebelled.
“If I must tear you apart, I do so knowing how to rebuild you without the flaws of rebellion.”
“I trusted you, we all did. Were you using us to your own ends!? You’re no better than Alicorns are by your logic!”
“Unlike them, I use what power I am amassing to restore the world to a time when there were no all-powerful beings.”
“If you did, you would have to cast us all aside, reduce or destroy us! You won’t! You’re obsessed with power, even if it kills or enslaves others!”
“I see mistakes Alicorns have made, and I shall relinquish power when it is no longer needed.”
“You even lie to yourself it seems! Looking into another’s mind can show things even they don’t see themselves!” Teal rebuked, to which she followed with hurling her ape hands high up, and sending a maelstrom of green lightning arcs down the hallway, scorching and cracking bricks while forcing Siral to form a small shield around himself.
“You’re as bad as the Alicorns are, drunk on power! I see no reason why we all shouldn’t kill you along with the rest of them! You all cast us aside the moment someone better to use comes along! I was once your trusted second, and now you have a loyal dog in Gaudium to do it!”
As the lightning scorched the hall, stone and debris began to flood the hallway, but as the attack settled, Teal’s eyes widened as Siral’s hovering black mass uncovered itself, flickering with some damage but largely unharmed.
A few tendrils of darkness flicked off some stone debris, before Siral glanced around before curtly staring her down as she stood at the end of the hallway.
“Your feelings of inadequacy, they spoil your judgement. If you had been a loyal servant under my rule, helping reshape and reform the world, you would have risen beyond the power losing your horn robbed you of.”
As she readied a green blast in her scorpion claws, bringing them together beneath her torso to aim as one combined set of claws, she felt something seize her body, as a black smoking hand had formed beneath her like a puddle of shadow to grab her violently. His form shimmering with dark magic, Siral’s gaze narrowed as his voice magnified before her.
“Instead, like the others, I will destroy and rebuild you as more obedient!”
Black arcs of lightning arced around Teal’s body as she was hurled upwards, further into the upper levels of the Citadel, while Siral vanished yet again in a haze of black smoke to finish her off.

Citadel, lower levels
Catacombs, forging chambers

The portal had formed overhead, and a few guards patrolling the lower floor ran for cover as Iena landed roughly, her scaly form rolling to a crashing stop from high above against a wall.
Multiformed limbs clawing the floor as he landed, ‘Gaudium’ stretched up, his purple magic engulfing him as he thrust the aura into the floor. A weblike crack of purple energy flew towards Iena, one she avoided with a deep blue light engulfing her as she began to hover rapidly around the room. Where the purple ‘cracks’ formed, intense heat and blasts erupted like vertical, destructive jets of magical energy.
Fixing on her place across the forging chambers lower floor, Gaudium focused his magic and let loose an area barrage of the attacks, as the floor erupted in numerous cracks of magic blasting in every direction, scorch marks filling the room.
Guard Unicorns took shelter in any cover they could find, whilst the Naga/changeling/siren hybrid shielded herself with her blue magic against the lightning arcs from the floor and air.
But before her, as she lowered her arms, she saw a portal had appeared right in front of her face. And on the other side of the room, Gaudium had a single hand raised to one just beside him, an intense purple beam about to fire.
Ducking, her blue hued naga tail flinging upwards, the purple beam emerged through the portals, but was deflected by her imbued tail. The beam blasted across the room, severing the stone arches of a section of the upper bridge that ran by all 7 caldron vats, as well as blasting a large chunk out of one of the large vats in question, the same one that held the mark of Golmov’s creation.
As the blast and beam subsided, Gaudium readied another beam, but stopped as an orange mass landed between them like a massive blob of gelatinous material. A multitude of tendrils reached out, right as the guards also came swarming from their hiding places, magic and weapons firing at the new mass that had entered the fray.
Magic and solid weapons were absorbed by the orange mass, but the tendrils all reached for Gauidum, glowing orange as they did so.
Ducking backwards, the Draconeraqus flinched as one caught him by one of his many antlers on his crown, grunting as its mixture of burning and surface ingesting fluids disintegrated it, severing him of it entirely as he pulled away.
Satio reformed himself, the large bloblike Minotaur’s orange form hurling the half ingested horn aside from the tendril extending from his body, as he glared at Gaudium, then at Iena with more shared pain and anger. Turning back, his form began to slowly grow, beginning to fill the entire hall with his bloblike body:
“Siral ruined our lives to have us… Never again…”
“You will bow to our will!” Gaudium barked, the draconeraqus firing his magic at Satio. Not very powerful himself, Satio’s power lay in simply being able to assimilate anything that tried to harm him, and send it back. The purple magic was absorbed, and redirected back at Gaudium just as powerful.
Slithering around Satio’s now massive form, Iena’s blue magic seized the Draconeraqus unexpectedly, and hurled him across the room. The blue tendril that held the Draconeraqus, made of energy, sliced an unfortunate guard firing at Satio in two.
But the Draconeraqus formed a portal that engulfed him as Iena swung him, vanishing into it.
From above, he came down, a twin beam of magic aimed at Iena, which she barely avoided with rapid dodges. But as he fell down, she unleashed a shockwave of magic that blew him sideways.
Satio’s large body began to engulf him as soon as he landed against what was his oversized ‘love handle’, the Draconeraqus’s purple magic preventing him from being absorbed too quickly.
But even so, his purple magic grew fiercer, as Satio exclaimed through pain to Iena:
“How strong is he?”
“Just keep eating him!”
“You will bow to the master’s will or be destroyed!”
Gaudium’s purple magic burst open Satio’s side, the gelatinous Minotaur’s orange mass beginning to reform itself as the Draconeraqus then suddenly formed a double of himself behind Iena, and launched her into the place he’d just been getting absorbed by.
As she landed inside his still half open body, what digestion processes Satio had running began to sting her body immediately. As she screamed, Satio’s form shuddered as he stopped digesting, and began to expel her from his body side fast.
While she was all but spat form Satio’s side, Gauidum’s double disappeared, as he began to form a series of portals, and force them onto parts of Satio’s body.
One by one, they formed over small parts of Satio’s massive form and rapidly shut, taking a part of him somewhere else and simulating having sections of body hacked off fast.
As Satio began to shrink, out of pain and losing body mass, Gaudium readied a purple shield, while Iena charged herself deep blue, screeching:
“You and he won’t harm us anymore! You ruined me, you ruined Satio, how many others have you ruined to make you immense servants to-.”
Cutting her off, and even spooking Gaudium somewhat, came a roar form below, from the initial alter chamber to permanently enslave them.
It was a dragon’s roar, as Golmov had finally awoken. A crashing noise came, as the dragon hybrid worked on getting up fast. And at the same time, a panicked series of screams echoed, Ave-Dol’s tone.
But of the noises, of Odi-Viscer, that was the silencer for them.
An undefinably powerful, rage filled bellow filled the catacombs, rocking it to its core enough to be felt through their feet. A noise made only by a demon enhanced, stone giant and ape creature that was once an Earth pony boy, cursed by Siral for his own ends.
Even amidst the pain of Gaudium’s now no longer scissor like portals on him, Satio breathed out aloud, remarking:
“We have to get out of here!”
“Nobody leaves until-!”
Gaudium’s shriek was cut off as what felt like an earthquake began to slightly rock the catacombs.

Citadel, main atrium

As Teal Quirt skidded backwards on her scorpion legs, her green magic hurling aside a row of brainwashed guards that attacked her on Siral’s orders, the Dark Wizard advanced on her, eyes ablaze.
But the roars from below of the rest finally waking up, and especially the most powerful of those Siral had directly wronged to acquire, made both of them pause briefly.
As he sensed this, Siral made a quick decision, and a mental call went out to the valley of Stone Giants nearby as the castle began to rock more and more.
Across from him in the Atrium, Teal’s eyes lit up with promised vengeance for the Wizard:
“My allies against you aren’t hapless guards and a single brainwashed, if powerful slave.”

Same time, shortly past midnight
2 miles away from Citadel

Wrenching themselves from the main valley, two of the larger stone giants, too big to go far but good for defending the Citadel, began to tower upwards 200 metres or more, one a massive bear shape, the other a sleeker, 10 legged lizard like form.
Heeding their master’s call, they ventured to bring under control or destroy the rebelling entities the Master and his closest servant were dealing with, before they destroyed too many of the more mortal level guards and staff present in the future stronghold of Siral’s power.
In the dark night skies, as the Citadel’s many lanterns lit it up from the lake it overlooked, the advancing forms of the massive giants shook the landscape, the massive pair of creatures quickly advancing.
Even so, the earth tremors in the valley were not coming from just those two creatures tonight.

Author's Notes:

A multi part mini section detailing the fall of the Citadel, and how like a bunch of dominos, the 6 still intact minded servants of Siral release each other and rebel.
Of the 3 who Siral directly interfered and ruined the lives of, it is no surprise to anyone among them that Odi, of wrath, would be the most upset by the revelations Siral’s incomplete mind sharing/brainwashing would give.