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The dim sky was lightless, and the entire Motostoke City was enveloped by vast dark clouds.
Above the gym arena, the black vortex accumulated like a bottomless abyss, as if it wanted to swallow everything below.
The monstrous and terrifying giant bone dragon floated below the black vortex, overlooking everything, its oppressive aura incredibly strong.
"Whew~ Mammon, I'm counting on you."
Rose let out a deep sigh, once again admiring his wise decision.
This oppressive feeling, which made it difficult for him to breathe, was indeed too terrifying. It was a good thing he had Mammon come over in advance.
Otherwise, he really didn't know what terrifying consequences would ensue if Eternatus awakened and Leon couldn't capture or control it.
But now it didn't matter much; Mammon could handle it.
"Ah~ Leave it to me."
Mammon patted Teraapagos's body. Terapagos pouted; it really didn't like fighting.
Besides, weren't there many others at home who could fight?
But there was no other way. Since Mammon told it to go, it could only go.
Teraapagos Terapagos flew up to meet Eternatus, and at the same time, a brilliant, crystal-like glow shimmered around its body.
"Gos~!"
In the blink of an eye, Terapagos's size rapidly increased, with various colored crystal gems rotating around its body, its form so dazzling it was practically light pollution.
Stellar Tera Terapagos!
Eternatus slightly lowered its dragon head, its spotted dragon eyes flickering continuously, gazing at this powerful opponent that had suddenly appeared, its hostility unconcealed.
"What a cool Pokémon! Isn't it too shiny? I feel like my eyes are going to be blinded."
Raihan didn't know if he was big-hearted or what, but he still had time for humor in this situation.
But it had to be said, Raihan's complaint was spot on. Stellar Tera Terapagos was truly enough to blind one's eyes.
The colorful gem crystals, and the sparkling light on its body, were just too bright.
"Mammon, is this Pokémon a match for Eternatus?" Rose was still a little worried.
After all, according to the information he knew, Mammon didn't seem to have this Terapagos, or rather, this Terapagos had no battle record.
"Don't worry, Teraapagos can easily handle this form of Eternatus," Mammon shrugged.
"After all, Terapagos is the 'Source of Terastallization'."
Although he didn't understand the specific meaning of 'Source of Terastallization' in Mammon's words, Rose was very intelligent and immediately thought of Paldea's Terastallization.
Does that mean this Terapagos is the origin of Terastallization?
But Mammon didn't seem to have been to Paldea, right? How did he capture this Terapagos?
Leon, on the other hand, looked at this Stellar Tera Terapagos and fell into contemplation. After such a long time without contact with Mammon, Mammon seemed to have captured some more unseen Legendary Pokémon?
In the air.
"Roar~!"
Eternatus let out a warning, low dragon roar at Stellar Tera Terapagos. Having just awakened, it was actually still a bit weak at the moment, with not much energy in its body.
So it didn't really want to fight this unknown light-polluting turtle, which is why it only issued a warning.
But clearly, Stellar Tera Terapagos didn't want to talk much and had no intention of retreating.
Seeing this, Eternatus's core in its chest and abdomen flashed with a dangerous, ominous crimson light.
Dragon-type Dynamax Cannon!
This was one of Eternatus's exclusive moves.
A huge crimson beam of light shot through the air, directly towards Stellar Tera Terapagos.
"Stellar Burst."
Stellar Tera Terapagos let out an ethereal cry, its head shining, and points of light like stars shot out, meeting the Dynamax Cannon.
Normal-type Stellar Burst.
Boom boom boom!!
Stellar Burst and Dynamax Cannon clashed head-on, with violent roars shaking the air and powerful, surging air currents constantly overflowing.
The strong winds howled, and even Mammon and the others on the ground were slightly affected.
The crimson Dynamax Cannon furiously impacted, but it was quickly consumed by Stellar Burst, and the remaining 'stars' continued to assault Eternatus.
Stellar Burst exploded on Eternatus's body. Eternatus let out a painful whimper, its entire massive body being blasted back a good distance.
"Strong~!"
Raihan's eyes sparkled at the sight, and he couldn't help but exclaim.
In reality, purely in terms of size, the two sides were not at all equal.
Because Eternatus's body was very large, its slender bone dragon body was definitely over twenty meters long by visual estimation.
But Stellar Tera Terapagos was only about two meters tall, yet it was completely overpowering Eternatus in their exchange of attacks.
"Terapagos is really amazing~"
Serena also praised it. She really liked Terapagos because Terapagos was truly a very cute Pokémon.
And this Teraapagos had an incredibly good temper and a very gentle personality. Usually, when Platinum and Serena wanted to hug it, it would never refuse.
When they wanted to try Terastallization, Terapagos would also not refuse. It would use its ability to Terastallize Serena's and their Pokémon, allowing them to familiarize themselves with the use of Terastallization in advance.
And Terapagos was also very strong in battle! Wasn't it suppressing the 'Darkest Day' from three thousand years ago in Galar now?
Who wouldn't love a Teraapagos that was both cute and strong?
Platinum nodded vigorously from the side.
"This is just the beginning."
Mammon, however, chuckled softly, looking at Eternatus in the air.
Hearing this, Platinum and the others were stunned. What did he mean, 'just the beginning'?
"Blizzard."
Mammon didn't explain but continued to give orders to Stellar Tera Terapagos through telepathy.
He wanted to push Eternatus further.
The newly awakened Eternatus was not recklessly unleashing the 'Darkest Day' at the moment, perhaps because it hadn't fully woken up and needed to recover, but Mammon thought it was more likely because Eternatus was wary.
As for who it was wary of?
Of course, it was the Sword King and Shield King who had shattered its body three thousand years ago.
The bloody lesson from 3000 years ago was still vivid, so Eternatus definitely wouldn't dare to go all out unless pushed to its limit.
Otherwise, if it attracted those two scourges again, it would probably have to hide weakly again after just 'reviving'.
But while Eternatus wanted to 'hold back', Mammon wouldn't give it the chance.
Under Stellar Tera Terapagos's fierce assault, the currently weakened Eternatus retreated steadily, completely unable to resist Stellar Tera Terapagos's offensive.
The power gap was still quite obvious.
It should be known that Stellar Tera Terapagos's combat power was at the top Legendary level, and it was a good tier even within that level.
As for the newly awakened Eternatus, its combat power was only at the ordinary high-tier Legendary level, and whether it could defeat Ho-Oh or Lugia was still questionable.
After all, Eternatus was very low on energy right now. Energy was not only its life but also the source of its combat power.
After being nearly blasted to the ground by Stellar Tera Terapagos's Stellar Burst once more, Eternatus was already very weak.
"It seems we're going to win."
Rose was slightly complicated. He hadn't expected Eternatus to be so weak in front of Mammon.
"No, Eternatus is about to get serious."
Mammon, however, said so.
"?"
Rose frowned, and Leon and the others were also surprised.
Getting serious? But Eternatus was already quite injured.
And it was at this moment.
"Roar!!"
Eternatus roared at Teraapagos, its dragon roar echoing across the sky. Eternatus was enraged.
This was unbearable. This Teraapagos was truly bullying the dragon too much. Did it really think Eternatus was made of mud?
Stellar Tera Terapagos tilted its head, silent.
Eternatus finally stopped holding back. Its massive, scarred bone dragon body shot into the sky, directly plunging into the black vortex.
The black vortex began to expand rapidly. In just a few breaths, it had already expanded to cover the entire Motostoke City.
Below the Motostoke Arena and across the sky, streaks of red energy shot up, rapidly 'investing' into the black vortex.
"It's absorbing this energy!" Leon's eyes narrowed.
"That's right, Eternatus is a Pokémon that uses energy as its life. Its previous form was not its true appearance; rather, it was a state lacking energy," Mammon explained.
In fact, according to the Pokedex, Gigantamax Eternatus was what it looked like when it absorbed energy from all over Galar under Rose's interference, leading to an overload.
However, such Pokedex entries should be taken with a grain of salt, as they are clearly written from the perspective of Galar scholars.
According to the description of Eternatus's strongest exclusive move, Eternabeam, it is the strongest attack launched when Eternatus returns to its original form.
And in the animation for Eternabeam, Eternatus transforms into its Gigantamax form to attack, which corresponds to 'Eternatus's original form' here.
This is enough to prove that the Gigantamax form is Eternatus's true appearance. Otherwise, with that 'emaciated' bone dragon body, could its body fragments really benefit the entire Galar region?
"And now, its true form is coming."
Mammon looked at the boundless black vortex in the sky. Within the black vortex, long red shadows could vaguely be seen constantly moving and swimming.
Inside the vortex, Eternatus was continuously growing larger!
In the sky, red 'meteors' continuously shot in from afar, filling the black vortex and entering Eternatus's body.
It was still wildly devouring energy!
Especially in the power plant, there were Wishing Stars and Wishing Star fragments that Rose had collected over the years. These were originally formed from Eternatus's body fragments, perfectly suited for Eternatus's body.
"So big!"
Platinum's eyes widened. Through the black vortex, she could vaguely see the terrifyingly massive behemoth behind the vortex.
"Hmm, it's coming."
Mammon slowly grinned. The bigger, the better! It would be more interesting when he used Eternatus in battle later.
Just then, from the massive black vortex in the sky, Eternatus finally completed its 'transformation'. A gigantic claw, like a towering skyscraper, descended from the sky, landing above Stellar Tera Terapagos.
That was the head of Gigantamax Eternatus, covered in dark purple, sinister matter. The tip of the claw was an eye, and its massive body continuously swirled to form a vortex.
"No way, isn't this too big?!"
Raihan was shocked, staring at the unbelievably massive size, completely dumbfounded.
Gigantamax was originally a way to strengthen ordinary Pokémon by turning them into small monsters, so Raihan definitely felt he had a say. What kind of large Pokémon hadn't he seen?
But the Pokémon in the sky, which almost obscured the entire sky, was truly too exaggerated!
"This is the biggest Pokémon in the world, bar none."
Mammon was not too surprised. Gigantamax Eternatus was definitely the largest Pokémon in the Pokémon world.
Because according to Pokedex data, Gigantamax Eternatus was a full one hundred meters tall!
What does this concept mean? The average size of monsters in Ultraman is about fifty meters, while Gigantamax Eternatus is equivalent to two monsters stacked on top of each other.
With Gigantamax complete, Eternatus's five pink eyes, flashing with dangerous light at the tip of its claw, stared intently at Stellar Tera Terapagos, and a vast, heavy aura frantically spread.
This damned Teraapagos, you had fun fighting just now, didn't you? Try to clash with me again now!
Gigantamax Eternatus felt the overflowing energy within its body. It felt great!
It felt like it was invincible now!
Meanwhile, Mammon, after rummaging through his bag for a while, finally found the Rusted Sword.
"Zacian, come slash the dragon."