Ash's reaction speed was undeniably fast. The moment he saw the shadow covering Lugia, he immediately instructed Pikachu and Mewtwo to attack it.
Yveltal's attributes are Dark and Flying-type, so Psychic powers have no effect on Yveltal. This attribute's effect was evidently transferred to Yveltal's shadow, which is why Lugia's Psychic had no impact on it.
Given that, Electric-type attacks should have a super-effective impact on that shadow. Although Ash may be slow on some matters, when it comes to Pokemon battles, he is definitely the fastest thinker.
Within an instant, he had already made his judgment to use Electric-type attacks on the shadow.
Unfortunately, despite Ash's quick response, he didn't understand all of the shadow's Abilities. When the two golden lightning bolts pierced the sky and struck Lugia, the shadow instantly shattered into countless fragments and dispersed!
The Thunderbolts hit Lugia squarely, causing it damage.
As Ash wore a stunned expression, the dispersed shadow gathered once more, then surged entirely into Lugia's body. The Thunderbolts made the invasion easier for the shadow.
In the end, under the wide-eyed and torn expressions of Ash and the others, the shadow completely adhered to Lugia. Lugia's cries ceased, and its snow-white feathers began to turn pitch black, much like the Dark Lugia in Ash's hand, just enlarged!
"We did it; the Sea God belongs to Team Galactic now!" Pluton's face displayed extreme excitement as he waved his hand, and the stationary Dark Lugia in the sky obediently flew over to his side.
Evidently, Lugia was now under Pluton's control.
"How is this possible... how could it be so easy... that was the Sea God at the Divine Realm Level Peak! It was controlled almost without any resistance. Is Yveltal's power really that much stronger than Lugia's?" Lorelei muttered in disbelief, her eyes dazed.
"It's not just Yveltal's power; there's also other power in that shadow specifically targeting Lugia. It first suppressed Lugia's power and then relied on the shadow to temporarily control Lugia," Ash took a deep breath, quelling the panic within him.
At a time like this, they absolutely must not lose their composure. If they panic as well, then the task of reclaiming Lugia will be completely out of reach.
"You're definitely not just any ordinary kid. I'm curious how you know such secretive things. However, right now... it's best to deal with you as soon as possible. Otherwise, I have a feeling you'll create more trouble for us," Pluton looked at Ash, a hint of appreciation flashing in his eyes, but mostly with a ruthless glint.
If Ash had appeared in their Team Galactic, they would spare no expense to cultivate him as their next-generation successor. But since he's appeared with the Alliance, they must spare no expense to eliminate him!
Otherwise, in the future, he will become the biggest obstacle to Team Galactic creating a new world, even if he is still young now.
After Pluton finished speaking, he leaped down from Articuno, standing beside Mars. Immediately, Articuno and the now darkened Lugia roared angrily at Ash and the others, the divine pressure exerting itself completely upon them!
The terrifying pressure almost instantly caused Misty, Serena, and even Lorelei and Cynthia to kneel halfway on the ground.
The only one on the field able to withstand this pressure was Ash alone.
Yet even Ash, under the immense pressure of two Divine Domain Level beings, one of which was at the Divine Realm Level Peak, couldn't help but bend slightly, but his gaze remained sharp, not showing a hint of despair at the current situation.
...
[Advanced Ash: Guys, urgent situation, now facing a Divine Realm Level Peak, well, temporarily a Divine Domain Level Lugia, plus a Primary Divine Domain Level Galarian Form Articuno. Can any of the big shots handle this?]
[Champion Ash: What's going on? You stirred up such a big mess? Lugia is supposed to be a benevolent legendary Pokemon. How did it end up attacking you?]
[Advanced Ash: It's a long story. In short, Lugia is controlled by Team Galactic right now.]
[Champion Ash: Got it, I can guess what happened. Leave it to me.]
...
In the span of almost twenty seconds of conversation in his mental chat group, while Pluton was still speaking harshly, Ash had already reached out to the big shots in the group. Just relying on themselves clearly wouldn't cut it; the Divine Realm Level Peak was an insurmountable obstacle.
If they don't call for reinforcements, they might face total annihilation here today. So Ash decisively chose to use his one-time top-tier booster opportunity.
The final selection was Champion Ash. This should be Champion Ash's second intervention, the first time being against Koga, utilizing the power of Venusaur, though back then, it was Bulbasaur channeling Venusaur's power.
At that time, Bulbasaur had erupted with Champion Peak-level power in its most basic form, leaving Koga unable to lift his head. The most unreasonable part of this ability is that no matter what form or power your Pokemon has, it's calculated based on the substitute's Pokemon power.