In Fairy Tail, starts with a Super Mega Gengar

Rustyrose stood frozen under the terrifying roar of the Gigantamax Urshifu, watching in disbelief as the countless ghosts he summoned were swept away by a single monstrous roar: "Damn it! What kind of monster is that?! This is outrageous!"

With the twenty-meter-tall grotesque beast turning its gaze towards him, raising its fist, Rustyrose quickly cast magic on his legs: "Pegasus Wing!"

Wings that could propel a Pegasus into flight appeared on either side of his ankles. As the huge fist came crashing down, Rustyrose knelt and jumped, launching himself upward at an angle to evade.

Boom—!!!

A massive crater appeared on the ground, ten meters wide. Rustyrose eyed the pit with cold sweat; if he were to be smashed by that thing, he would surely be turned into a meat pancake.

He certainly didn't possess the abnormal physique of Zancrow or Kain Hikaru. Seeing the grotesque beast lift its head once more, Rustyrose dared not linger and flew away into the distance.

Suddenly, he caught a glimpse of cold light out of the corner of his eye, a sense of impending doom washing over him.

Instantly, Rustyrose turned around and activated magic: "Golden Shield!"

A tall golden shield materialized in his hand. The next instant, clang!

The resounding noise of metal on metal echoed as Rustyrose, hiding behind the golden shield, felt a tremendous force knock him back, sending him sliding through the air.

On the ground, Greninja furrowed its brows, catching the spinning shuriken that returned to its hand.

Rustyrose, thankful to have survived yet slightly annoyed, shouted, "Bastard!!! Sacred Guardian Beast: Belcusas the Thunderclap! Sacred Guardian Beast, Belfast the Hurricane!"

He summoned the beasts of his imagination, which, although shorter than the Gigantamax Urshifu, were enormous like earth dragons. 

"Deal with them!!!" Rustyrose commanded the two beasts to attack the Gigantamax Urshifu while he manifested a golden shield in his left hand, wielding a pitch-black sword in his right, preparing to counter the ranged attacks from Greninja.

In the distance, within the forest, boom!!!

A booming sound erupted as black flames surged and ignited, rising high into the sky.

Another massive lava pit formed, nearly a hundred meters wide.

The forest could hardly be called a forest anymore; except for a few trees at the edges that had not burned, even the ground's shattered rocks had been incinerated, replaced by one gaping pit after another, flowing with molten rock. 

At this moment, Zancrow was rampaging like a maniac, flames of black burning in his hands, desperately searching for Gaal's silhouette: "Bastard! Show yourself! Do you just hide? Damn rat!!!" Suddenly, the figure of 'Gaal' appeared behind him, and Zancrow, with crazed eyes, shouted without turning around: "Finally showed up?! Burn to ashes!!!" 

An overwhelming surge of violent black flames erupted from Zancrow, flooding outwards. 'Gaal' remained unfazed, raising his hand to point at the oncoming flames: "Reflector Magic...." 

Swish! Zancrow shot forward in front of Gaal, raising his fist engulfed in burning flames: "Fire God Slayer! Let's see you reflect this, ha ha ha!!!" The fist, wrapped in endless black flames, smashed into the Reflector Magic Circle.

Crack! The silver-white Reflector Magic Circle shattered, and Zancrow laughed maniacally as he brought his fist down, but in the next second, his expression stiffened.

A brilliant light burst forth, and three arrows of holy light appeared out of nowhere, unavoidable at such close range, leaving Zancrow no time to defend. Gritting his teeth, he pressed down. 

Puff! Three holy arrows pierced through him—two in his chest and one in his abdomen.

Zancrow fell from the sky, unable to suppress a cough of blood, but the grimace on his face turned into a more twisted grin as he looked at 'Gaal', exclaiming with deranged joy: "Ha ha ha! How does my fist feel?! Damn rat! Fire God Blade!!!" 

Zancrow formed a large blade of black flames with both hands, laughing maniacally as he charged at 'Gaal'. 

Meanwhile, Gaal calmly cast his magic, aiming at the entangled Zancrow and the phantom: "Gravity Magic—Tenfold Gravity." 

Buzz— 

A silver-white magic array appeared above Zancrow, entering an activation state. 

"Amplification Magic: Triple Stacking." 

A glowing formation stood vertically in front of Gaal. 

"Pain Magic: Double Pain." 

A crimson-glowing array overlapped with the amplification array.

Then, Gaal raised his hand and targeted a stone stained with Zancrow's blood, which floated to his front, settling between the amplification array and the sensory array.

The eerie crimson glow illuminated the bloodied stone, emanating an unsettling aura. 

Gaal's eyes flashed with a red light representing malevolence as he pointed at the stone at the center of the array, a surge of cursed power rushing into his palm: "Curse of Heart-Piercing and Bone-Drilling!" 

The amplification and pain arrays shone brightly, their stacked layers of cursed power transforming into a nearly tangible black streak, shooting toward Zancrow. 

Not far away, Zancrow was laughing wildly, pushing 'Gaal' back at every turn, when suddenly his body stiffened. 

Boom! 

The ground within a ten-meter radius sank half a meter. Along with it, Zancrow was pressed down against the earth by the sudden application of gravity, struggling to rise. A black streak of light surged into his body. 

Zancrow's body shook, his pupils shrinking to the limit, the ringing in his ears filling his mind as his thoughts ceased.

The pain from the amplified agony spread, forcing him to feel every cell in his body tremble—the bones shattered, the heart felt like it was being torn apart under duress.

Yet, under the suppression of the gravity magic, Zancrow not only found himself unable to move but also lost his mental faculties under the excruciating pain: "Ahhhhhhh!!!!" 

The chilling scream echoed throughout the battlefield, sending shivers down everyone's spine. It was as if his very soul and flesh were being torn asunder, causing attention from all corners of the battlefield.

The bones and flesh within him exploded, blood erupting from his skin, turning the surrounding area into a bizarre crimson hue.

High above, Hades heard Zancrow's screams as if emerging from an abyss. His eyes narrowed, and he caught on to the problem: "Fool!"

The little brat from Fairy Tail stood in the distance, while Zancrow was surrounded by traces of his own magical destruction—he had been played by illusion magic. 

Only a brief glance was necessary for Gildarts to seize the opportunity. 

Boom—!!!

Dominating magic rippled out, dispersing the surrounding dark magic, as Gildarts radiated a faint white magic aura and lifted his arm, concentrating magic in his limb: "Crushing Evil, Spreading the Truth—One Day!" 

A massive white magic shockwave, tangled with swirling air currents, smashed down toward Hades in an instant. 

Before Hades could react, a black magic circle appeared before him: "Shadow of Eternal Darkness."