Want to play cards? I'll use my King's Deck!

"Sinful Contradictory Dragon, Level 10/Dark/Dragon/Synchronization" "ATK: 4000/DEF: 4000"

"[Sin Parallel Gear] + 1 [Sin] monster other than a Tuner"

Just like the scene when he fought against Mashiro and Saki, the "Parallel Gear" transformed into a black star ring that enveloped the sinful stardust. A black storm pillar rose behind him, and a huge dragon spread its wings inside.

"The effect of 'Die Spade the Sinner' activates! When a Synchro Summon is successfully performed, Special Summon 1 Synchro Monster from your Graveyard, ignoring its Summoning conditions. Revive, 'Die Spade the Sinner'!"

With a roar, the sinister white dragon, which had been traversing the field and graveyard several times, returned once more. With its return, an invisible pressure was also placed upon Yuki's monsters.

"As long as 'Sinful Contradictory Dragon' and 'Dispater' are on the field, all monsters your opponent controls lose 'Dispater's' ATK. Then activate 'Dispater's' effect to Special Summon 'Dark Dragon's Lament,' which has been banished. Enter the Battle Phase."

With a flick of his hand, he summoned four powerful dragon beasts, the hem of his trench coat billowing in the gale, and then he waved his hand forward—

"The 'Dragon's Lament of the Underworld' attacks 'Dreamlike Collapse - Unicorn'!"

Because of the effect of "Sinful Contradictory Dragon", the attack power of "Unicorn" was reduced to 0. If it was hit by "Netherworld Turbid Dragon", it would suffer a critical hit of 4000 points of damage. Not to mention that "Netherworld Turbid Dragon" can attack again after destroying the monster.

Even if Yuki's LP is at full, he will still be killed in one round.

However, Yu Xi's Gaika is no pushover either.

"Activate the Trap Card 'Divine Shield - Mirror Force -' the instant you declare your attack!"

Pressing the button with his finger, the cover card popped up, and a rainbow-colored barrier protected Yuki and his monster behind him.

"Due to this card's effect, all Attack Position monsters on your opponent's field are destroyed. Let all hostility be reflected back!"

The jet-black dragon breath collided with the rainbow mirror, and the diffused light instantly pierced through all the real monsters. The dragons that had been painstakingly summoned were completely annihilated.

“I knew it wouldn’t be easy to succeed, but I wasn’t completely unprepared.”

The instant annihilation of his own monsters didn't even make him frown. He raised his voice and announced, "Activate the effect of 'Ice Barrier Zero Dragon Trident Dragon'!"

[If this Synchro Summoned card is destroyed by your opponent, you can activate this effect. Special Summon 1 "Ice Barrier Dragon Trident Dragon" from your Extra Deck or Graveyard, increasing its ATK to 3300. If your opponent controls any face-up monsters, halve their ATK and negate their effects.]

"It's not over yet! Because the 'Sin' monster was destroyed, I paid half of its Life Points, and the effect of 'Sin True Dragon' in my hand activated, Special Summoning this card! The True Dragon, born of contradiction, descends here!"

"Ice Barrier Dragon Trident, Level 9/Water/Dragon/Synchro" "ATK: 2700→3300/DEF: 2000"

"Sinful True Dragon, Level 12/Dark/Dragon" "ATK: 5000/DEF: 5000"

[Actual LP: 1500→750→375]

Using the effect triggered by the destruction of the monster, ice crystals froze Yuki's monster, while two brand-new dragons soared into the sky.

Because of the effects of "Dragon's Trembling" and "True Dragon," whose base score had been repeatedly halved, True Dragon stood atop the golden dragon's head, looking down at Yuki, and roared: "This time, can you still stop me? 'Sinful True Dragon' attacks 'Electromagnetic Stone Warrior Electromagnetic Mad God,' [True Despair]!"

A spiral of black and white dragon breath was unleashed, carving a deep trench in the ground and completely engulfing the "Electromagnetic Stone Warrior, Electromagnetic Mad God." The energy fluctuations transmitted by the dragon breath that grazed the side of his head were terrifying, giving the feeling of brushing against death.

"Because of the effect of 'Zero Dragon,' 'Electromagnetic Mad God's' ATK becomes 1500, so you will take 3500 damage, Yuuki. Furthermore, 'Sin True Dragon' has a follow-up effect: when a 'Sin' monster destroys an opponent's monster by battle, it will destroy all monsters on the opponent's field and inflict damage equal to that number x 800. Game over!"

3500 + 800, totaling 4300. After paying the 800 LP for "Premature Burial", Yuki's HP is now 4100, which is not enough to withstand all the damage.

Her actual math scores were good, but—

"The end? That's hard to say."

Beside the smoke and dust stirred up by the dragon's breath, the last face-down card at Yuki's feet was revealed.

"During damage calculation, I activated the Trap Card: 'Health Boost Super Z'! This card's effect restores 4000 Life Points before I take more than 2000 battle damage."

"Is this what the final card is? Well then, let's absorb all the damage from 'True Dragon of Sin' first."

With a wave of his hand, countless blood-red spikes gathered around the "Sinful True Dragon" and rained down, turning the "Unicorn" into a hedgehog.

[Yu Xi LP: 4100→8100→3800]

"Then comes the direct attack from the 'Ice Barrier Dragon Trident Dragon,' using [Absolute Freeze]!"

"what……"

[Yu Xi's LP: 3800 → 500]

The three-headed ice dragon lowered its head slightly, and three streams of blue-white light, capable of freezing even the soul, converged and surged towards Yuki. Yuki made no defense and directly took the blow with his own body.

If it weren't for Feel's protection, he felt his hands and feet would have been frozen to pieces.

Fortunately, he survived the attack...

"It's not over yet! Quick-attack spell activated: 'Sin Cross'!"

The final card was played by Truth; from the emerald green card, an eye stared intently out from a dark cross-shaped dimensional rift.

【Cross of Sin (Quick-Play Spell): You can target 1 "Sin" monster in your Graveyard. Special Summon that monster regardless of its Summoning conditions. Negate the effects of the monster Special Summoned by this effect, except during the End Phase.】

Special Summon the "Sinful Phantom Dragon" from the Graveyard!

Using the resurrection magic exclusive to the "Sin" series, Makoto successfully revived the Sin Synchron Dragon, which had died after stepping on the Holy Defense. Upon its return, the dark dragon unleashed a torrent of violent energy upon Yuuki.

"The 'Contradictory Dragon' launches a direct attack, [Spiral of Contradiction]!"

Even before making contact, merely getting close enough to feel the deadly aura of destruction.

Faced with the hostility of such a dragon, man is like a small boat in a storm, always at risk of capsizing and destruction.

This time, the game no longer has face-down cards, so you can no longer rely on trap cards like Sacred Defense to defend against attacks.

but--

"The effect of 'Rainbow Kuriboh' has activated!"

Yuki's calm voice rang out, still reeling from the attack of "Trident Dragon": "When an opponent's monster declares a direct attack, Special Summon this card from the Graveyard! Then banish 'Sacrifice Kuriboh' to destroy 'Rainbow Kuriboh' in place of it during battle."

"Rainbow Kuriboh, Level 1/Light/Demonic" "ATK: 100/DEF: 100"

"Krikrik!"

The chestnut ball, with rainbow-colored scales on its head, roared and burst out of the dimensional hole, crashing headfirst into the "Contradictory Dragon's" breath. It used its tiny body to forcefully stop the dragon's breath and neutralize its momentum. Until the dragon's breath dissipated due to lack of energy, it didn't even touch a single hair on Yuki's head.

"There's even a 'Rainbow Kuriboh' picture in the cemetery..."

"Didn't you already guess what was in my card?"

Yu Xi, surprised, said, "The 'Rainbow Kuriboh' isn't just effective in your hands; it works wonders in the cemetery too."

"Haha, well done, Izumi Yuuki. It seems I still underestimated you."

After regaining his composure, he burst into laughter, then said, "However, when 'Rainbow Kuriboh' is Special Summoned with this effect, it will be banished from the game, meaning it can basically only be used once. You can't use the same trick again next time."

"Indeed."

Yuki nodded, agreeing with Makoto's assessment: "However, I will not lose to you here. I will defeat you with the will of Mashiro, Yuki, and her father!"

"Heh, then I'll wait and see. Round over!"

As the end phase arrives, the "Sinful Contradictory Dragon" summoned by the "Sinful Cross" is sucked into a dimensional rift, leaving only the "Sinful True Dragon" and the "Ice Barrier Dragon Trident Dragon" on the field, both powerful monsters with attack power exceeding 3000.

The pressure is immense, but there is still a possibility of reversal.

"My turn, draw a card!"

Yu Xi forcefully pulled out the card and slammed it down heavily.

"I summon the Level 1 Tuner 'Unknown Synchron' in Attack Position, and use this card to Level Up 'Rainbow Kuriboh'."

1 stars + 1 stars = 2 stars!

"The gathered prayers will lead to the horizon of a new speed and become a shining road!"

"The summoning line is—"

He showed a hint of surprise; he was all too familiar with that summoning phrase.

The sound was so familiar that even after five years, he could still recall it clearly. It was as if a gentle middle-aged man had overlapped with You Xi, and was shouting along with him.

Before him, the blazing light of the Synchro radiance shone with a brilliance completely opposite to his Synchro Summoning.

"—Summoning of Synchro, the power of hope! Synchro Coordinator, 'Formula Synchro'!!"

"Formula Synchronizer, Rank 2 / Light / Mechanical / Synchronization / Tuner" "ATK: 200 / DEF: 1500"

With a roar of engines, the anthropomorphic Formula One race car bursts forth in the light, bringing Yuki a whole new level of power.

"The effect of 'Formula Synchron' activates, I draw 1 card from my Deck. Then I activate the Spell Card 'Monster Reborn' (Quick-Play Spell), using this card's effect to Special Summon 1 monster from both players' Graveyards—Come back to our side, 'Stardust Dragon'!!"

Stardust gathered and transformed into a dazzling stardust dragon, which hissed softly in the sky above Yuxi.

Because it was blocked by "Chain Void", it could only sleep in the graveyard until the end of the real turn. But now, it can finally show its fangs to the enemy who took it from its original owner.

"They took back the 'Stardust Dragon,' didn't they?"

He raised an eyebrow.

It's impossible for him to have completely missed this move, so he wasn't particularly shocked by what he saw.

“But choosing to revive ‘Stardust Dragon’ isn’t a good idea, Yuuki. If you had just revived ‘Kappa Apoo,’ which was in my graveyard, you would have won the duel.”

"That would be the worst option."

Yu Xi calmly replied, "Just like my 'Osiris,' your 'Earthbound God' is an extremely special card, isn't it? If I were to actually summon it to my field, I would most likely be immediately attacked by it. I won't fall for that kind of trap!"

"Earthbound God" is, after all, a card bearing the name of a god, and no matter how weak it is, it is incomparable to ordinary things. To use such a card, one usually needs to be marked by an "Earthbound God" and become its familiar. Yu Xi has no interest in being a Dark Signer controlled by an evil god.

"Furthermore, it's alright even without using 'Earthbound God.' Because I've already decided how I'll defeat you! Using a 2-star 'Formula Synchron,' I'll tune an 8-star 'Stardust Dragon,' and the gathered wishes will create new miracles, becoming a path of dazzling light! Synchron Summon, rise—'Satellite Warrior'!!"

"Satellite Warrior, Rank 10/Dark/Warrior/Synchronization" "ATK: 2500/DEF: 2000"

"One or more Synchro Monsters other than Tuners"

With a full-body feel, Yu Xi raised his palm high, and the second synchronization light shone under the setting sun, from which a giant celestial warrior broke through the air and flew out.

This is Izayoi Hoshi's trump card, enough to tear a ray of hope for Yuki in any adversity.

"The effect of 'Satellite Warrior' is activated!"

"If a Synchro Summon is successful, target the opponent's cards on the field up to the number of Synchro Monsters in your Graveyard, and destroy those cards."

"But you currently only have one monster, 'Formula Synchron,' in your graveyard, so you can only destroy 1 card."