Dialga and Palkia showed intense hostility toward Rayquaza's arrival.
They stopped fighting each other and turned all their attention to this menacing, uninvited guest.
Unlike Darkrai, an opponent rarely encountered, Rayquaza was the undisputed ruler of the ozone layer, and there was more than one of its kind. Thus, whether Dialga or Palkia, as long as they frequently roamed the skies, they would often deal with them. Naturally, they knew these were fierce, belligerent Pokémon with an extremely strong sense of territory.
The only difference was that there had never been a precedent for this kind of Pokémon appearing in another dimension!
That was why, the instant they saw Rayquaza, both raised their heads and growled at it.
Likewise, Rayquaza looked down at the two Pokémon, fierce fighting spirit blazing in its eyes. It twisted its enormous draconic body, gathering strength while awaiting the command to battle.
Fortunately, Xia You did not keep it waiting long.
Almost the instant he swept his hand forward, Rayquaza's eyes flew wide open. It opened its mouth and spewed a thick stream of searing energy, eagerly launching its attack.
The energy streaked across the sky in a pillar of light, sweeping straight toward Dialga and Palkia.
However, an opening attack like this was still difficult to land head-on, especially since both Pokémon could fly. They simply dodged aside, easily avoiding the energy attack, then spat out energy almost simultaneously and engaged Rayquaza in battle.
In terms of typing, the three Pokémon were Dragon/Flying, Steel/Dragon, and Water/Dragon respectively. All shared the Dragon type and used it as their primary means of attack.
Combined with their already tremendous strength, this meant that any of the three could deal considerable damage to either of the others.
However, faced with a formidable foe like Rayquaza, Dialga and Palkia