Super Polymerization!
Anyone who's watched Yu-Gi-Oh! GX or played the game knows those words. Hell, even casual duelists would recognize them. In some circles, the name's more iconic than The Egyptian God Cards themselves. It's the apex of Fusion cards in the GX-verse—a card that doesn't just bend rules, it fuses them together and makes them kneel.
Was this real?
Hikaru Amagi was shaking. Literally trembling.
In the source material, Super Poly was S-tier. Not just mechanically—narratively. It fused twelve dimensions, forced duels between spirits and humans into a singular body. A card so broken, the Sacred Beasts felt like child's play next to it.
He snatched up his Duel Disk and slotted the card into the Spell/Trap Zone.
It activated.
It activated.
Oh hell yes.
He swallowed hard and looked at his desk, eyes darting between a pencil and an eraser. He hesitated, then muttered:
"Fuse the pencil and the eraser…?"
A sudden wave of cold washed over him. Like something inside drained away. His head spun, vision tilted, body wobbled like a loose Duel Disk about to fall off a cliff.
He grabbed his water bottle, chugged half of it, and after a minute of recovering, looked back.
The pencil and eraser were gone. In their place was a single item.
A 2B pencil with an eraser tip.
It worked.
It actually worked.
Hikaru slapped his cheeks to keep himself grounded. A new rush of instinctive data spilled into his brain.
This card—Super Polymerization—this was the reason he'd crossed dimensions!
A true Super Poly.
And it hadn't just brought him here—it had fused his belongings into a deck of Fusion cards along the way. No wonder his entire deck was nothing but Fusion spells and traps.
Figures. Super Poly doesn't play fair. It redefines fair.
Sure, right now fusing a pencil left him half-dead and woozy, and he was light-years away from the reality-warping madlad Super Poly from the anime—but still. Who the hell complains about having a broken ability?
This was top-tier power in a world built on duels.
After scarfing some food to recharge and letting the high wear off, Hikaru's brain clicked back into gear. He needed to get serious.
A whole deck of Fusion spells and traps sounded great… but where the hell were the monsters?
Even with top-tier spells like Red-Eyes Fusion and Fusion Destiny, without Fusion Materials, they were just shiny paperweights.
Down below, the Fusion Supremacists were still out there shouting their gospel, hosting impromptu duels and cheerleading fusion like it was a political campaign.
His headache returned.
He'd almost forgotten about those lunatics.
This dimension—a weird mash-up of GX and Arc-V—had a solid contingent of Fusion fanatics at Duel Academy. His predecessor wasn't one of them, but he was a wannabe Fusion user.
And at this rate, these psychos were going to become a "Fusion Dog Squad," running around with Ancient Gear Hounds invading other dimensions like it was their full-time job.
But this wasn't Yu-Gi-Oh! Arc-V anymore. What if the XYZ Dimension here was the ZEXAL universe? You think these Fusion-obsessed meatheads could take on Yuma, Shark, and Kaito in a triple threat?
They'd get flattened before they could summon Ancient Gear Golem.
Worst case scenario, they bungle an invasion and accidentally piss off some Thousand-Lord Overgod or whatever—then what? Letting GX-level clowns go to war with god-tier duelists? That's a recipe for multiverse memes.
Even GX's final villain nearly wiped out the world by being the lamest endboss in the franchise.
If a real big bad came along?
Yikes.
So yeah. The danger level here was way higher than in the source material. Having Super Poly didn't make him immortal. It made him a glowing target.
This world was never going to be peaceful.
He glanced back down at the cultists. Then an idea struck him—pure lightning bolt to the brain.
Fusion is the noblest form of summoning?
Damn right it is, brother.
Fusion Summoning is the pinnacle of dueling.
He started digging through the leftovers of his predecessor's cards, trying to piece together something remotely usable.
The old deck? Garbage. Technically a Fusion deck, yeah, but in practice it was just a pile of mismatched monsters and low odds. You had better chances pulling a God Card from a gacha than drawing the right fusion materials here.
Besides the guy's bank balance being on life support, Hikaru figured the root cause of the trash deck was this:
The guy had no idea what Fusion actually meant.
Fusion isn't just two monsters and a spell. Slap 'em down and pray? No.
It's an art.
Among duelists, there's a legendary phrase:
"Fusion is the noblest summoning method!"
Same vein as "Synchro destroys worlds," but while that one reeks of endboss drama, Fusion's motto is more memeable—because it's also true.
Fusion has always been relevant. Every era had top-tier Fusion decks. And more importantly—
Fusion's got style.
Fusion from hand. Fusion from grave. Fusion across dimensions. Return-to-deck Fusion. Steal-your-opponent's-board-and-fuse-it Fusion. There are so many ways to fuse, it's a damn lifestyle.
That is why Fusion is noble.
"It's time they saw what Fusion really looks like."
And just like that, a brilliant plan hatched.
All the Fusion Fanatics downstairs?
They could be issued a free Ancient Gear starter deck.
Nothing overpowered—just a standard training build to get new duelists familiar with Fusion mechanics. Worthless for elite players. But for someone like him, who only had Fusion spells and traps?
It was perfect.
Would joining the Fusion faction make him their pawn?
Lmao.
Hikaru's mind flashed with data—memories, intel.
These Fusion Fanatics followed Professor Leo Akaba, the dude who, in Arc-V, wanted to convert the entire multiverse into Fusion duelists. Classic villain arc. The guy was as "Final Boss" as they come—an icon of "born from birth" villainy.
They were technically villains. But... in this version of the world? Honestly more chill than their anime counterparts. At least they weren't randomly turning people into cards. Yet.
And Hikaru?
He was even more extreme than they were.
His entire deck—only Fusion Spells and Traps.
He wasn't about to be some minion.
If Leo Akaba could lead a faction, then why couldn't Hikaru Amagi?
"I must join the Fusion Army immediately!"