Kokonoe: Sometimes it gets boring being a big fish in a small pound. Especially when you're a mighty, unstoppable dragon living in a world where dragons are near extinct.

Junko: Like Kaido of the Beasts in One Piece!

Ann: And Acnologia, the Black Dragon of Fairy Tail.

Kokonoe: The stage is set and the combatants are ready.

Junko: It's time for a Death Battle!

In the lad of Wano, everything was peaceful. At least as peaceful as it could be under its current ruling. As everyone was having a good time, a giant shadow flew across the country creating massive shockwaves that blew everyone away.

Drake: What the? Is that Kaido?

Hawkins: No... someone else entirely...

Everyone looked up to see the giant dragon begin to land, destroying everything around him before turning into his human form. He walked toward everyone as Orochi approached him.

Orochi: Hey! What do you think you're doing?! You're wrecking my country! Don't you know who I am?! I can have you killed for this! For I am Lord Oroch-

As Acnologia passed him, all he did was swipe his hand a bit and rip Orochi's head clean off. Orochi's body collapsed behind Acnologia as everyone watched in horror.

Acnologia: Annoying filth. I'm not here for any of you. I only come for the Dragon who resides here.

The Beast Pirates suddenly came up. They were ready to lay down their lives and take him down.

Acnologia: Hmph. Choosing to serve that creature then? So you have chosen death.

Meanwhile, on Onigashima, the rumbling of Acnologia's rampage was heard by a giant, sleeping dragon, Kaido. These rumblings woke Kaido up, quickly annoying him. He flew down to Wano, only to see Acnologia, sitting on the bodies of the men he defeated.

Acnologia: How boring. Is there anyone here who can truly entertain me?

Furious, Kaido opened his mouth and let out a gigantic blast of energy that sent Acnologia flying straight through a bunch of buildings that blew up on contact. Once the explosion was gone, Kaido went back to his base form as Acnologia crawled out of the rubble unscathed. He looked up at Kaido, who towered over him.

Acnologia: This scent... so you're the dragon that resides here. You seem different from the others. How did you obtain your power?

Kaido: You ever heard of a Devil Fruit boy?

Acnologia: A fruit you say? Hmph... it doesn't matter. Either way, you'll face death by my hands!

Acnologia raised his arm as a giant burst of energy blasted up from Kaido's feet. Acnologia smiled, but his smile quickly faded once he saw Kaido didn't have a scratch on him.

Kaido: Impressive. I actually felt that.

Acnologia: Grrr!

Acnologia flew straight at him and kicked him in the face, sending him flying back and crashing into rubble. Kaido recovered quickly, getting back to his feet as Acnologia dashed back at him. Kaido swung his club like a bat and sent Acnologia flying through buildings. 

Kaido: Annoying pest!

Acnologia burst right back at him, going for another powerful kick as Kaido swung his club again. The two of them clashed, creating a ginormous explosion so powerful it split the sky. All the civilians and even some of Kaido's own men ran quickly to evacuate as Acnologia and Kaido continued to clash, creating massive shockwaves around them before Acnologia jumped back. Kaido swung his club down on him and Acnologia jumped to the side to dodge it. He then sent a giant blast of energy at Kaido, knocking him back. He then dashed at him to go for a powerful punch, but Kaido recovered and quickly charged at him at blinding speeds. He swung his club horizontally and hit Acnologia hard.

Kaido: Raimei Hakke!

Acnologia was sent flying behind him before crashing to the ground. Kaido turned to see Acnologia still getting up from that.

Kaido: You're tougher than you look. 

Acnologia: Hah! I haven't even used the full extent of my power!

Kaido: That so? Then stop playing around and come at me!

He turned into a giant dragon and opened his mouth.

Kaido: Bolo Breath!

He unleashed a blast of energy that destroyed everything in its path. Acnologia jumped t the side, quickly dodging the blast.

Acnologia: I guess I must show you... why they call me the Dragon King!

He slowly turned into a dragon himself before letting out a roar that pushed everything back but Kaido stood his ground. They both unleashed gigantic blasts of energy that clashed, creating a gigantic explosion between their beam struggle. Acnologia quickly overpowered him and blasted him away. Kaido got up fast and spun around, creating three massive tornadoes that approached Acnologia, who flapped his wings and made giant gushes of wind to disperse the tornadoes and blowing Kaido back further. The beast pirate went ack to base form and Acnologia flew at him. Kaido went to use his arm to block the next attack and Acnologia took a bite out of it.

Kaido: Geh!

He smashed the dragon's head into the ground, forcing Acnologia to let go as Kaido smashed his club down on Acnologia. Kaido hit him with it again and again and again before Acnologia finally had enough and swung his tail. Kaido caught it and threw him into the air, but Acnologia caught himself mid-air. Kaido turned back into a dragon and fired massive fireballs at Acnologia, who in turn fired several beams of light down at all of Wano. This once again overwhelmed Kaido as thousands of explosions surrounded him. He flew up into the air and bit Acnologia in the neck.

Acnologia: RAAAAGH!

Acnologia roared out loud before grabbing Kaido and slamming him to the ground, destroying everything around them. Acnologia then flew higher into the sky.

Acnologia: Enough! You want my full power? Then I shall show you! Prepare to meet your demise!

Kaido turned back to base once more as he suddenly started to glow. The other Beast Pirates saw this.

Queen: What the?

King: Lord Kaido!

Kaido tried to resist whatever was happening to him, but then disappeared from thin air. Everyone then looked at Acnologia, who seemed to have become mindless as he roared and flew into the sky, firing beams of light to destroy everything in Wano.

Ulti: Ah crap...

Meanwhile, Kaido woke up in unfamiliar territory. He looked around to see a bunch of crystals everywhere before looking forward to see Acnologia sitting on one of the crystals smiling at him.

Acnologia: Welcome to the Ravine of Time... a world separated from time and space. Out there I am a king but in here... I have become a God! Now... fall by my own hands! AHAHAHAHAHAHA!!!

Kaido looked down to see his body slowly turning to crystal. Acnologia smiled in victory.

Kaido: WORORORORORORORO!!!!

Acnologia: Hm? Why do you laugh?

Kaido: Why not?! This is the most fun I've had in ages! 

Kaido unleashed his Conquers Haki, which caused the crystal to shatter and pushed everything around him back. Acnologia stood more annoyed at first, but Kaido continued to laugh uproariously.

Kaido: WORORORORO! If I had known you weren't easy picking, I would have brought more saki!

Acnologia then smiled.

Acnologia: Is that so? You dare mock me? Then let me show you why I am... the Black Dragon of the Apocolypse!

His eyes glowed red as he opened his mouth, unleashing giant blasts of energy causing giant explosions to engulf around Kaido. Once the debris from the explosions cooled off, Acnologia saw a silhouette of Kaido changing forms.

Kaido: Then enough with the chit-chat...

Kaido stood tall as he was now in his hybrid form.

Kaido: And FIGHT!!!

Acnologia dashed at him and went for a powerful kick as Kaido swung his club. They clashed before their attacks could even touch, knocking each other back and being sent crashing into giant crystals on the opposite sides of them. Kaido got up and swung his club again. 

Kaido: Kongo Kabura!

With a swing of his club, he unleashed a giant projectile that Acnologia jumped up to dodge. He dashed at Kaido who swung his Club again.

Kaido: Gundari Ryuseigun!

He embedded his club with Conquerors Haki and went for several high-speed swings with it. Acnologia dodged all of them before ducking down on one of them before jumping up and uppercutting Kaido so hard it sent the big guy flying into the air. 

Acnologia: AHAHAHAHAHAHAHA!!!

He jumped up and kicked Kaido into a giant crystal. Once Kaido fell, the crystal fell on top of him before immediately shattering. Kaido stood back up immediately.

Kaido: WORORORORORORO!!!

He dashed at Acnologia again, who pointed at him and unleashed a giant blast of energy that went straight through Kaido's chest. Kaido coughed up blood before slamming his club down onto Acnologia, creating a massive crater before falling to one knee. Acnologia recovered as they both stumbled back. They then looked at each other.

Kaido/Acnologia: DIE!!!

Acnologia unleashed a giant explosion around him as Kaido jumped into the air, imbuing his weapon with Conquerors Haki. 

Kaido: Kosanze Ragnaraku!!!

He swung his club as the two of them clashed, creating an impact that formed an even greater explosion, destroying everything around them and making everything turn white.

Then, in the real world, Acnologia's mindless Dragon body continued to wreak havoc, overwhelming the Beast Pirates. It suddenly stopped and roared as the sky began to crack.

Drake: What the?

Ulti: Oh what now?

Acnologia continued to roar before Kaido smashed through the sky in the form of a giant flaming dragon.

Kaido: Shoryu... Kaen Hakke!!!

He unleashed the flaming dragon down onto Acnologia's body and caused a giant explosion once more. Everyone was shocked as they gathered around... to see Kaido drinking booze, holding his club up in victory.

Kaido: WORORORORORO!!!

Everyone else raised their weapons in the air as well, cheering in victory.

Junko: That's how true men fight!

Ann: This match was definitely not an easy one. Acnologia had plenty of power to harm Kaido, especially with his Dragon Slayer magic. But that wasn't a guaranteed win, especially when facing a man like Kaido.

Kokonoe: Right. Kaido once had his powers nullified by sea-prism stone and Kaido was still able to survive 40 executions by the World Government. While Dragon Slayer magic could potentially hurt him, it wouldn't be enough to stop him.

Junko: Yeah, while Acnologia had the advantage in raw power and experience, Kaido basically had everything else. Due to not using magic, Acnologia wasn't able to consume any of Kaido's attacks. It also didn't help that Acnologia relies a bit too much on his magic immunity that it often lets him struggle against opponents who use more physical attacks. That's how he got his arm ripped off and his Dragon Body sealed by Fairy Sphere in the first place.

Kokonoe: Still, Acnologia's power is immense, he could eventually overwhelm Kaido... but that's easier said than done.

Junko: Yeah, as far as speed goes... Kaido is much faster despite his size. He's also shown to take a lot more damage than Acnologia but still keeps fighting for hours on end while holding an island. Acnologia's tough, but he's never shown the same toughness to physical attacks as Kaido... well... unless those attacks are magical ones.

Ann: In the end, Acnologia didn't realize he needed a hand till he fought a beast.

Kokonoe: The winner is Kaido.

Winner: Kaido

+Physically stronger and more durable

+Faster

+No magic attacks

+Bigger

-Not as smart

-Less Experienced

-Dragon Slayer Magic

Loser: Acnologia

+More experienced

+Smarter

+ Dragon Slayer Magic

+More destructive

-Physically weaker

-Slower

-Not immune to Haki attacks

Junko: Next time on Death Battle!

https://youtu.be/n7EQeLyzcts

Vilgax vs Ridley

(Ben 10 vs Metroid)