Marvel: Starting with Megatron

A remote corner of Hell was now overrun, overwhelmed by a tide of Transformers, an unending mechanical onslaught pouring from an open dimensional rift. And from that portal, more were coming, countless and unstoppable.

At the gateway stood Martin, sustaining the continuous deployment of troops. His expression was twisted in a cold sneer, eyes glinting with a frostborn malevolence that made him appear ever more menacing.

Across the hellscape of magma and crimson skies, the legions advanced, coordinated and relentless. Wave after wave of mechanical soldiers surged forward, fearless, engulfing demon after demon in a merciless tide.

Unless a demon possessed sub-Skyfather power, capable of shattering stars with a single strike, any being ranked below Tier-4 simply stood no chance. In the face of overwhelming numbers, they were inevitably torn apart by the deranged and brutal Cybertronian storm.

But Martin hadn't just awakened standard mechs from Earth's slumber.

He brought nuclear payloads to life.

Self-destructing Transformers made from nuclear bombs.

BOOM!

A blazing mushroom cloud bloomed in the abyss. One nuclear-class Transformer detonated, annihilating a swath of lesser devils and fiends.

And there were many more like it.

Even though Hell operated under laws slightly divergent from the majority of multiversal realms, fundamental principles like conservation of energy still applied.

To break such laws outright required multiversal-class entities, those who could unmake and remake existence with a thought.

Only such beings could defy reason.

Mephisto's expression darkened, literally. The crimson drained from his face, replaced by an ashen black. His skin twitched. Horror etched across his features.

"Who are you, human?! Or… whose avatar are you?!"

The Demon Lord stared at the battlefield, watching his legions reduced to ash by the unending stream of invaders. His voice was cold, but within it swelled an ever-growing dread toward Martin.

It was unnatural, this endless army, each with intelligence and soul. A phenomenon so impossible that only a deity could have birthed it.

And not a god of destruction, only a god of creation could manage such a feat.

"Earth… Yggdrasil… You… Are you the God of Life?!"

Mephisto roared, his demonic body swelling in size, morphing into a monstrous colossus.

Only the God of Life made sense, the Firstborn of the World Tree, creator of the Four Elder Gods, originator of entire divine pantheons, and the one who projected Yggdrasil's reflection across the entire multiverse, so that every universe bore a World Tree.

Mephisto's mind raced. No matter how bizarre these Transformers appeared, only a Life-Deity could be behind them.

"Die! Your corpse will be a vital specimen on my path to conquest!"

Martin grinned savagely and descended like a meteor, crashing onto molten ground. The instant his Skyfather-tier presence hit, the already hostile terrain of Hell became an apocalypse.

Volcanoes erupted in chain reactions. Sulfur rolled like ocean waves. Piles of corpses smoked in the infernal winds. This was no longer just Hell, it was a crucible of mechanical genocide unlike anything the underworld had ever known.

Martin was clad in the Apex Armor, the Matrix of Leadership embedded in his chest. His fists glowed with power from the Polarity Gauntlet, this was his most battle-ready form yet.

He had come for one goal: to eliminate Mephisto, that vile and treacherous devil, a future threat that needed to be erased now.

ROAR!

Surtur, the fire giant, joined the fray, howling with glee.

His Twilight Sword danced through demon ranks, cleaving through thousands of lesser fiends.

Even as they self-destructed, the Transformers dragged enemies into oblivion. The tide began to turn. Fear infected even the infernal hearts of the damned.

Some demons fled.

"Your minions have already abandoned you," Martin said coldly, clashing with Mephisto in a savage, sky-splitting duel.

Two Skyfather-class titans collided, every blow birthing cataclysmic destruction. With each strike, soldiers on both sides perished, but neither Martin nor Mephisto showed the slightest concern for their forces.

Only each other mattered now.

As the battle dragged on, Martin's mastery over his divine artifacts deepened.

The fusion with the AllSpark grew stronger, his lifeform ascending layer by layer. Though he had not yet reached Skyfather power in his base form, the growth was very real, not just an effect of the Apex Armor.

This was true evolution.

BOOM! BOOM! BOOM!

The earth cracked. Volcanoes erupted. Even the blood-colored sky unique to Hell was ruptured again and again. Each blast opened up rents in the heavens, attracting the attention of ancient, slumbering horrors.

Eyes turned toward the battlefield, each pair belonging to a High Demon.

"What's happening…?"

"Who dares challenge Mephisto? Is a new demon overlord rising?"

CRACK!

A massive shockwave triggered a localized spacetime collapse. Even Hell, fortified and anchored by ancient laws, buckled.

A burning figure plummeted from the heavens, trailing fire and brimstone, crashing through magma.

Martin followed, his form wreathed in wrath. The power emanating from him distorted the very laws of Hell. He dove downward, gripped Mephisto by the throat, and soared skyward in a burst of fury.

Clad in freezing battle armor, he hoisted Mephisto high, then, amidst the devil's screams and fury, Martin's hands surged with apocalyptic force and—

RIPPED.

RIIIP!

The infamous Demon Lord Mephisto, terror of countless universes, was torn apart mid-air—slain by Martin.

------

TN: I don't know who the hell is the author referring as the "God of Life" here, but it might be Demiurge as he is the only one who pops up on my search. Also the the Four Elder Gods that this fic have been mentioning is "Four Chaos Gods" in raws. Don't know them either, and only the Elder Gods was the closest I could linked them.

Want to read ahead of schedule? Head over to my Patreon ——— patreon(.)com/PrimalDemon [remove the parentheses ( )]