The Fuchsia Gym stadium was smaller than Celadon's massive venue but no less intense.
Thirty thousand seats filled to capacity, word of Sasuke Uchiha's prowess having spread through the city during his preparation days. The Ninja Academy's involvement, the Safari Zone exploration, the Legendary Pokémon that whispered rumors insisted he commanded, curiosity had transformed into crowd that wanted to witness what reputation promised.
The marsh terrain dominated the arena floor, pools of murky water, unstable ground that shifted visibly, toxic plants that released subtle vapor. Kabuto had designed this battlefield specifically to disadvantage challengers, and it showed.
"Welcome to the Fuchsia Gym," the announcer declared. "Today's challenger: Sasuke Uchiha, seeking his fifth badge against Gym Leader Kabuto Yakushi!"
Kabuto entered from the gym leader's corridor.
His appearance was unsettling by design, white medical coat over combat gear, the aesthetic of a doctor who had decided that healing was less interesting than understanding how things broke. Silver hair caught the arena's lighting, and behind his glasses, analytical eyes were already dissecting his opponent.
"Sasuke Uchiha," he said, voice carrying across the field. "I've reviewed your previous battles. Impressive application of rare Pokémon. Let's see how you handle an opponent who doesn't rely on type advantages."
Sasuke emerged from the challenger's entrance with composure that three days of preparation had built.
"I'm here for the Soul Badge. How you fight is your concern."
"Cold." Kabuto's smile remained clinical. "Good. Emotion clouds judgment."
The referee stepped forward to establish parameters.
"This is an official Pokémon League gym battle! Standard format applies! The Gym Leader will use one Pokémon; the challenger may use their full team! The battle concludes when either side's Pokémon are unable to continue! Trainers, reveal your Pokémon!"
"Nidoking!"
The Drill Pokémon materialized with ground-shaking impact, its massive form radiating Poison-type energy that made the toxic plants around it seem to lean toward their kindred. Purple hide gleamed with health that excellent training had maintained.
"Latios!"
The Eon Pokémon emerged in flight, immediately establishing the aerial position that training had emphasized. Blue and white coloring caught light as it oriented toward its opponent, psychic presence already reaching toward the battlefield.
"Battle begin!"
Kabuto moved first.
"Toxic Spikes!"
Nidoking's horn glowed as it discharged venomous particles across the arena floor. The spikes embedded themselves in the muddy terrain, creating a trap that would poison any ground-based Pokémon the moment they touched down.
Latios remained airborne, the hazard irrelevant to its elevated position.
"Smart anticipation," Kabuto observed. "You've studied our tactics. Your Latios won't be affected while flying. But eventually, it must land. And when it does..."
"Luster Purge!"
Sasuke's counter came with the power he'd been building. Psychic energy erupted from Latios in a beam that should have devastated the Poison-type.
Nidoking braced against the impact, and held its ground.
"Interesting," Kabuto said as his Pokémon endured damage that seemed insufficient. "Did you forget Nidoking's typing? Poison and Ground. Psychic isn't super effective, it's neutral at best."
Sasuke's calculations adjusted immediately. The assumption of type advantage had been wrong. This was an even matchup, not the favorable one he'd prepared for.
Adapt.
"Megahorn!"
Nidoking charged with Bug-type energy surrounding its massive horn. The technique was specifically designed to counter Psychic-types, super effective damage that would devastate Latios if it connected.
"Dodge!"
Latios banked hard, superior speed carrying it away from the charging assault. Nidoking's Megahorn struck empty air, the Drill Pokémon's momentum carrying it through the space Latios had vacated.
"Dragon Pulse!"
The counter came while Nidoking was still recovering from its failed charge. Dragon-type energy struck the Poison/Ground type with neutral effectiveness, but Dragon Pulse carried power that typing alone couldn't measure.
Nidoking staggered, genuine damage registering.
"Better," Kabuto acknowledged. "Dragon attacks hurt regardless of type charts. But I have coverage too."
"Ice Beam!"
The command came with timing that exploited Latios's positioning. Dragon/Psychic typing made Ice super effective, and Nidoking's horn discharged frozen energy before evasion was possible.
Impact.
Latios recoiled as ice energy spread across its form, the weakness to cold proving painful despite training. The Eon Pokémon's flight wavered before stability returned.
"Significant damage," Kabuto noted. "Ice Beam is specifically for opponents like your Latios. Dragon-types that assume aerial advantage makes them safe."
"One hit doesn't decide battles."
"No. But accumulated hits do."
The exchange continued with both trainers demonstrating why they'd reached this level.
Kabuto's Nidoking deployed status effects that Latios's aerial position rendered irrelevant. Toxic Spikes covered the ground. Stealth Rock emerged from the unstable terrain. The field became increasingly hostile to anything that couldn't fly.
Latios maintained pressure through Dragon Pulse and Zen Headbutt, the latter requiring brief landings that exposed it to ground hazards but delivered damage that ranged attacks couldn't match.
Each Trainer read the other's tactics. Each adjusted. Each refused to be predictable.
"You're better than your record suggests," Kabuto admitted. "Four badges usually means trainers who've achieved through power rather than strategy. You actually think."
"Compliments from opponents mean nothing."
"They mean I'm taking you seriously." Kabuto's glasses caught light as he adjusted them. "Which means I should stop holding back."
The energy shift was immediate.
"Primal Reversion!"
Nidoking's form exploded with power that Sasuke had witnessed in his own Pokémon but never faced from an opponent's. The Drill Pokémon grew, size increasing, armor thickening, toxins intensifying until the air itself seemed to darken around it.
The prehistoric ancestor of Nidoking emerged. A beast that had ruled poison territories before modern Pokémon existed. Massive horn gleaming with venom that could have killed dozens. Presence that made the crowd instinctively press back despite protective barriers.
"Ancient poison drill beast," Kabuto announced. "What Nidoking was before evolution softened its species. What it remembers being, in genetic depths that modern training can access."
Sasuke felt pressure that demanded response.
"Primal Reversion!"
Latios transformed.
The Eon Pokémon's form shifted into something that predated legendary status, an ancient dragon god whose psychic presence had shaped reality before humans existed. Sleeker, faster, more powerful. The original form that eons of existence had refined into what the modern world knew.
The arena now held two prehistoric powers, each representing capabilities that contemporary Pokémon rarely approached.
"Even now," Kabuto observed. "Primal versus Primal. This is what I hoped for."
"Then you'll get exactly what you wanted."
"Will I? We'll see if your Legendary can match my specialist."
Nidoking's ancient roar shook the stadium.
Latios's psychic pressure responded in kind.