"You overestimate your capabilities." Dormammu's voice reverberated through Sean's mind like rolling thunder, shaking his very soul.
The illusory giant head rippled like towering mountain ranges, its shimmering light churning the Dark Dimension like tidal waves.
If translated into human expressions, this would undoubtedly be a scornful sneer.
In Dormammu's eyes, Sean was merely a slightly stronger ant. Last time, it was the Ancient One who had intervened to save this insignificant human who dared defy him. Now, the Sorcerer Supreme was busy battling the lords of hell, barely able to protect herself.
Hearing Sean reject his offer, Dormammu couldn't be bothered to waste more words. A massive energy beam, thick as a mountain peak, suddenly erupted, its violet radiance illuminating the Dark Dimension with enough force to pulverize an entire planet.
Sean raised an eyebrow. With a swift clench of the metal gauntlet, three-colored light merged into a solid barrier, blocking Dormammu's devastating attack.
The lifeless planet beneath Sean's feet trembled violently as the two titans clashed like battling bulls, neither willing to yield in this contest of raw power.
Under the immense pressure, the planet's surface cracked apart, forming a massive crater. The dead world groaned and shuddered as shockwaves from their collision radiated outward in all directions.
*Booom!*
With a deafening explosion, the planet shattered into fragments. Sean swung the gauntlet, delivering a blow with the force to sink a thousand battleships directly into Dormammu's illusory head!
Instantly, the Dark Dimension erupted like a storm, shaking with earth-shattering force. Dormammu's unimaginably vast form convulsed violently, sending ripples through the infinite overlapping dimensions behind him, much like toppling dominoes in a cosmic chain reaction.
To the ruler of the Dark Dimension, this punch was little more than a scratch. But its insulting nature far outweighed its damage.
"You... insolent–!" Dormammu roared in fury, his thoughts overtaken by primal rage.
The infinite energy of the Dark Dimension surged like a furious tide, rising high before crashing down toward the insignificant human.
The Aether shifted into a torrential flood. The Reality Stone bent the rules of existence, transforming the raging energy into clusters of transparent bubbles that floated harmlessly in the abyssal void.
A mischievous smirk played on Sean's lips as he twisted Dormammu's colossal visage into a giant Mickey Mouse head, an act of mockery that only enraged the Dark Lord further.
Two barren planets hurtled toward Sean like cannonballs, wreathed in terrifying dark flames that engulfed vast regions of the Dark Dimension.
With a raised hand, Sean's golden flames swung like a hammer, shattering both dead worlds instantly into a scattered ring of floating debris.
Azure energy waves rippled outward, swallowing the black flames whole. Flexing the gauntlet, Sean effortlessly dispersed Dormammu's assault.
"That gauntlet's power... Hand it over!" Dormammu's eyes, which were usually cold with destructive indifference, now burned with rare greed as they fixed upon the glowing Infinity Stones.
To him, the three gems embedded in the metal glove were even more enticing than Earth, the prize he had coveted for so long.
He offered, "I will spare your planet. In exchange, leave those stones behind."
Sean couldn't help but laugh in disbelief. It had never occurred to him that Dormammu would desire the Infinity Stones. After all, despite being the Ancient One's nemesis, the Dark Lord had never shown interest in the Eye of Agamotto.
"I will even relinquish the heart of the cosmic deity. Just surrender them to me." Dormammu's anger cooled, replaced by a negotiating tone.
His massive form, draped across dimensions, writhed continuously.
From a cosmic perspective, he resembled a drifting violet ribbon of light, its shimmering points representing countless dimensional worlds.
'The heart?' Sean's eyelids lowered slightly, his mental shields firm, but inwardly, his mind reeled.
He vaguely recalled an obscure legend, that Earth was the heart of one of the universe's five cosmic entities, Eternity...
'Is this why Dormammu schemed so relentlessly to drag Earth into his realm?' The thought flashed through Sean's mind.
The five cosmic abstracts existed on a plane far beyond his reach. They were conceptual beings of unimaginable scale.
"Sorry, but you'll get neither." The gauntlet blazed as all three Stones unleashed their full power.
Cataclysmic energy erupted, stirring a violent storm whose residual shockwaves tore through the Dark Dimension like doomsday itself.
Destructive force surged like volcanic magma. Stars trembled. Dimensions crumbled. Countless dead worlds floating in the void were reduced to dust!
"YOU!!" Dormammu's roar shook existence. This reckless assault threatened the very foundation of his domain.
Dark energy melted dozens of dead planets like a furnace, their power surging in tidal waves that even breached the material world. The shockwaves reached Doctor Strange and Mordo mid-battle with Kaecilius, filling them with primal dread.
Sean stood atop a shattered wasteland of a planet, his palm cradling a colossal orb of tri-colored light.
The Dark Dimension itself seemed to warp under the concentrated energy. The glowing sphere expanded to its limit... then, it suddenly imploded. Blinding light contracted inward, its surface crackling with silver lightning.
Even Dormammu felt a flicker of surprise. Compared to the formidable Ancient One, this human defied comprehension. His sheer power evoked something the Dark Lord hadn't felt in eons: a sense danger...
Then, the storm erupted.
The orb collapsed like a black hole, its gravitational pull devouring all matter, even light. The resulting energy tides released shockwaves in all directions.
When the two forces collided, the explosion resonated into the material world like thunder splitting the heavens. Concentric rings of transparent force radiated outward from the impact, illuminating the Dark Dimension as the shockwave crushed nearby planets into nothingness.
This clash rivaled a supernova's fury...
...
Back on Earth, Strange glimpsed the raging storm through the clouds in blinding arcs of lightning. It was the palpable aura of annihilation.
"No! I serve the great Dormammu–!" Mid-battle, Kaecilius clutched his forehead as the crimson mark burned brighter.
His desiccated face twisted in terror as his dark form crumbled like sand, his borrowed power draining back to the abyss.
"That's the price of being a lapdog," Strange mocked.
Those who worshipped Dormammu should have expected this fate.
He turned to Mordo, brow furrowed, and asked, "What do we do now?"
With the Sorcerer Supreme battling hell and Sean lost in the Dark Dimension, no one knew where the scales of victory would tip.
"We do nothing. We pray. And we wait." Mordo replied, his voice grim as his Staff of the Living Tribunal smashed through a skeletal wraith.
In this war, they were but minor players.
Mankind's fate rested in the hands of two...