Shiki the Golden Lion

Using his Awakened power, Kid used his 'Assign' to turn Big Mom into a magnet prompting hundreds metal pieces, weapons and scraps to fly at her, buring her underneath a mountain of steel.

Clang...Clang...--BOOOOM!!! After a moment of silence, the massive pile of scraps and metals sent over by Kid, which had buried Big Mom's oversized body, was suddenly shot away as she moved herself up and got to her feet.

Her veins bulged, her eyes flashed red, and expressions of fury, anger, and disbelief played across her face. She couldn't believe that she had just been overpowered by the two young pirates standing before her.

"Mama!! You're bleeding!!" Her homies cried out in shock as they approached her once more, filled with worry.

Big Mom wiped the blood from the corner of her mouth and stared at it in surprise. "Blood... I can't believe both these brats are using Conqueror's Haki. And Kai, he did something with that last attack—I felt a burst of energy exploding inside of my body..."

"...I gotta be careful dealing with them"

"Tsk, that hag is just as tough as they say," Kid remarked, narrowing his eyes as he observed her from a distance. "That same attack shattered a few bones in Silver Axe's body," he added, before a smile crept across his face at the sight of her bleeding. "But it's still effective. That's all that matters"

'It looks like I'm getting the hang of it, Internal Destruction...this Advanced Armament Haki technique along with Conqueror's Infusion are gonna be the key to beat Big Mom's ass' Kai clenched his fists tightly before cracking a smile "Of course, there's no such thing as someone invincible. Everybody has a weakness; you just need to find it and exploit the hell out of it"

Kid glanced at his brother beside him and whispered, "I'll create an opening for you. You just gotta hit Big Mom hard, got it?"

Kai nodded, his eyes sweeping across the battlefield. In an instant, he vanished into thin air at high speed, leaving Big Mom puzzled about his next move.

"Keep playing around all you like; I'll ensure you meet your demise on this island by the end of the night—along with your crew and allies," Big Mom declared with a savage grin, her tongue protruding as saliva dripped from it, resembling a monster in a woman's form.

"Hmph...SWOOOSH!!" Kid ignored her words and, in a swift move, dashed towards her at high speed using Soru. He clenched both his fists tightly, preparing to strike her.

"You cocky little shit...Zeus!!" Big Mom proceeded to command Zeus who flew right into her arm before she grabbed him tightly and ordered him to summon his lightning.

Before Kid could close on Big Mom, she had Zeus unleash an enormous horizontal lightning bolt at his direction that created a massive explosion upon impact, causing tremendous destruction to area. 

"I'm not gonna fall for the same things twice! Your lightning will be useless against me!" Kid declared

Big Mom looked confident and proud when she performed that attack, however her facial expressions quickly changed when Kid emerged unscathed by that.

"What?!!-- why weren't you hurt by that?!" She exclaimed in disbelief. Kid had enveloped himself in an electromagnetic sphere, using it to deflect her attack, as lightning is an electrical discharge, and electromagnetic fields can deflect or absorb electrical energy.

Thanks to his Awakening, Kid's magnetic powers became more powerful than before allowing him to pull off such a feat "Because I said so, you ugly no neck old bitch!!"

"Don't get full of yourself!" Big Mom immediately raised Napoléon and swung him in his longsword form with such force that she created a shockwave that destroyed everything in its path.

.

"Ikoku!!!"

.

KA-BOOOM!!! Kid spat out a mouthful of blood upon taking a direct hit from the attack. Nonetheless, a satisfied smile crept onto his face when he noticed Kai emerging behind Big Mom, who had been momentarily distracted by Kid.

SWOOOSH!! Big Mom only realized when Kai was already performing his attack.

<White Snake>

Kai aimed his sword at her and from its tip, he summoned a large cloud snake that wrapped around her body and immobilized her. 

"What?! damn punk!!--huh?!" Big Mom's enraged shouts filled the air as she struggled vehemently, attempting to break free. In a swift motion, Kai slashed across her back with his sword, trailing crimson energy and crackling lightning in his wake.

Waves of Conqueror's Haki traveled across the air as Kai let his Haki flow inside Big Mom's body causing tremendous damage to her internal organs as well as external damage and leaving her vulnerable for any follow up attacks.

"BLEUGH!!--" Big Mom staggered, thrown off balance by the force of the attack, which allowed Kid to seize the moment and land a blow on her too.

With swift agility, he maneuvered in mid-air, halting his backward motion induced by Big Mom's prior assault. Drawing in a multitude of metal fragments from the surroundings and shaped them in the form of a gigantic, metallic bull-like contraption that is even larger than the powered-up, giant-sized Big Mom and hoped on its back. 

.

"Punk Corna Dio!!"

.

Then, while riding on its back, Kid made the bull charge towards her, headbutting her so hard that it caused some of her bones to break while sending her crashing through several buildings.

CRASH!!!...

"..."

"Huff...Huff...how is that for an attack?" Kai landed on top of the bull beside Kid, signs of tiredness began to appear on them, specially Kid whose Awakening powers takes a toll on his stamina.

"If you give it long enough, even mountains can be worn down by rain..." Kid remarked "They say you Emperors are invincible? What a joke there is no such thing"

"Listen up you hag!! We came here today to make history, so we either leave here with your head in a bag, or we die trying!!" Kai declared.

"MAMA!!!"

Big Mom looked extremely pissed at the two red haired pirates "Kai's attacks are even more dangerous than Kid's. I could feel Haki burst inside of my body, I don't know where you learned such a technique but I gotta be careful not to get hit too much" she said looking at her broken arm and ribs "I'll have to exchange life span to bring you back you bones"

Big Mom used some of her life span to turn her bones to life and commanded them to go back to their original shape, effectively healing herself.

"YES!! MAMA!!"

"MAMA MAMA HAHAHA!!!"

"What kind of ridiculous power is that? she can heal broken bones instantly?" Kid was taken aback by that.

'No wonder she's an Emperor of the Sea, you don't gain that title but sitting around and being lucky' Kai though in his head before he remembered something "I take that back, actually you can…anyway, I can't let my guard down against her"

…

[East Coast of Whole Cake Island],

Additional reinforcements from the Big Mom Pirates have just arrived, making landfall on the island shores. Among them are several notable officers: Charlotte Amande, Compote, Custard, Mondeé, Mont-d'Or, Cinnamon, and others.

Looking out at Sweet City, Mont-d'Or observed the chaos with a grimace. "They chose today of all days to attack. Mama's going to be furious"

"She absolutely despises interruptions during her tea parties" Compote chimed in as hundreds of soldiers disembarked from the ships.

"Don't worry, we'll quickly deal with these punks. We are in Toto Land, the mainland of the Emperor of the Sea Big Mom, we can crush them with our sheer numbers" Mont-d'Or asserted confidently, eyeing the horizon. "And reinforcements are arriving as we speak. Let's move out and join the oth—"

Mont-d'Or's words were cut short by the ringing of his Den Den Mushi.

"Purupurupurupuru… Purupurupuru—What is it?" Mont-d'Or answered urgently.

<This is the Eastern unit, come in!! We've made contact with a large fleet of pirate ships, leading them an insanely big ship!!>

"What?!! A pirate fleet attacking, right now?!"

<There is no doubt about it, that flag…It's the Eustass Pirates and giant ship belongs to New Giant Warrior Pirates!!!>

"The giants?!" All of Big Mom's officers froze in shock, sweat pouring down their faces. "You've got to be kidding me!"

"What in the world are giants doing here?!" Compote exclaimed in disbelief. Suddenly, massive explosions at sea grabbed everyone's attention.

KA-BOOOOM!!! Big Mom's ships were getting destroyed one after the other.

On board of the Naglfar the New Giant Warrior ships, Hajrudin and the rest of his crew were on standby with their weapons drawn and ready to fight, while the rest of the Eustass Pirates and Crocodile fleet was on their tail.

"Damn it! Why are the Giant Warriors here?!"

"FIRE!!"

BOOOOM! BOOOOM!

"Digagagaga!! Get ready warriors!!" Hajrudin was resting his massive broadaxe on his sword with an excited grin on his face "Today we get our revenge on Big Mom!!"

"HAAAA!!!"

The Naglfar plowed through the opposing ships effortlessly until it reached the island's shores. Hajrudin and his comrades swiftly disembarked, smashing any enemy vessels in their vicinity. Waves of zombies and hordes of pirates inundated the beaches.

"Shall we show them the might of the New Giant Warrior Pirates, Hajrudin?" Stansen asked, swinging his colossal hammer with a grin.

"Let's stay focused on our objective to support Kai," Hajrudin replied.

"Sure, but no harm in having a little fun along the way! Gyadadadada!!"

"…"

"Damn... we're on our own against these guys..." Mont-d'Or muttered anxiously, eyeing the towering giants, who dwarfed even the largest ships.

"Now's the perfect moment to test my new power," Hajrudin declared, as silver liquid began to ooze from his body.

…

Back to Big Mom, Kai and Kid battlefield.

The news about the New Giant Warriors and their fleet of pirates spread swiftly across the island, disseminated by Big Mom's officers who ensured it reached every ear, including hers. Amidst the chaos of battle, a regular soldier approached Big Mom nervously.

"Reporting!" The soldier's voice quivered as Big Mom glanced down at him, her mere gaze sending a chill down his spine.

"What is it? Can't you see I'm in the midst of battle? How dare you interrupt me?" Her voice was a thunderous growl, but the soldier, though trembling, held his ground.

"I bring urgent news!" he managed to say.

"Is it more important that what I'm currently doing?"

"Mont-d'Or-sama insisted I deliver it to you"

"Very well," she sighed impatiently "Proceed"

"A massive fleet of pirate ships lead by The New Giant Warrior Pirates has made to Whole Cake Island and it's currently engaging with forces on shores!"

"Are you done yet? Can we proceed with this fight?" Kai said casually.

"A massive fleet of pirate ships, led by The New Giant Warrior Pirates, has reached Whole Cake Island and is engaging our forces on the shores."

Kai's smirk widened as he replied, "I wonder"

"One after the other, you keep on coming!!! You ruined my party and now you're bringing the giants against me, there is no right words to describe how angry I am right now...it's been years since I was forced to go all out, looks like you hell bent on taking my throne"

The three pirate captains stood watchful, a tense silence enveloping them until Big Mom's unmistakable laugh shattered the calm. Gripping Napoleon tightly, she prepared to strike.

But just as they were about to engage, something incredibly startling intervened, leaving them all in awe.

"...!!!?"

"What in the world--?!"

A colossal shadow emerged above Whole Cake Island, gradually casting the island into darkness as it approached. The atmosphere thickened, every eye turning skyward to behold what appeared to be an island, slowly floating toward them.

"What the fuck is that thing?!" Kid exclaimed in shock.

Even Kai's facial expressions revealed confusion and shock as he tried to make sense of what's happening "An island?..."

"Judging by your reaction, it's not your doing," Big Mom mused, her curiosity piqued by the floating landmass. "There are only two people I know capable of moving an island like that... It can't be him, can it?"

...

Near the gate of Whole Cake Château, Crocodile and Perospero's skirmish ground to a sudden halt.

"What the hell is it this time?!" Perospero roared, his gaze shooting skyward. Cold sweat trickled down his forehead "Is that an island flying this way?!"

Crocodile, ever composed, remained unruffled despite the spectacle. Taking leisurely puffs from his thick cigar, he exhaled a cloud of smoke. "Something unexpected"

…

On top of the floating island Shiki the Golden Lion stood thoroughly near the edge, glancing down at the entirety of Whole Cake Island.

"That hag seems to be having a hard time against those Worst Generation brats. Has age finally caught up with her?" Shiki remarked as he gestured with his left hand up to command dozens of massive boulders to hover in the air before hurtling them down toward Sweet City.

"Let's light up this party, shall we? Jihahahaha!!"