Afterward, the time-traveling Ash fused with Arceus's fading soul and began a long, unconscious drift.
During this time, the world experienced its third Energy Decay due to the divine battle.
This time, all Pokémon, including Rayquaza, couldn't escape the fate of being weakened.
Similar to other ancient Legendaries, Rayquaza's energy condensed into a seven-colored meteorite that crashed somewhere in the Hoenn region, forming a giant crater.
Ash, who had played countless modified versions of Pokémon Emerald, immediately recognized it. This was the future Sootopolis City. The in-game scene of the city surrounded by mountains was formed by this event.
However, the enormous energy carried by the meteorite once again attracted the attention of the two misbehaving children... After years of sleeping and recovering their energy, they had to fight again...
So, Groudon and Kyogre met at Sootopolis City, and the land-versus-sea battle to seize the meteorite's energy began once more.
Unlike the previous long periods of drought and flood, this time, the descendants of the Draconid people stood on the seven-colored meteorite and used the green orb to summon Rayquaza. With the power of the meteorite, Rayquaza briefly underwent Mega Evolution and once again hammered the two red and blue troublemakers.
After the battle, the two of them produced the Red Orb and Blue Orb, respectively, which were sealed by the elders of the Draconid people at Mt. Pyre.
Finally, the two kids went back to their homes...
This story shows us the true nature of mischievous kids: they fight, go home to sleep, and wake up to fight again.
As the energy continued to decay, far away in Kalos, Xerneas and Yveltal dispersed all their energy and fell into a deep sleep. All Pokémon also lost their ancient forms and became their lower-level forms.
In the sunless Alola region, three legendary Pokémon—Solgaleo, Lunala, and Necrozma—suddenly appeared one day.
Their appearance brought an endless supply of energy to Alola, turning it into a place filled with light. The people there called the most brilliant of them, Necrozma, the "Great Sun Lord."
The four Island Guardians, the Tapu, battled the Sun and Moon Legendaries at the altar. They were ultimately defeated and submitted, and were thus granted the ability to control and use Z-Power.
As the world's energy continued to decay, the drained Necrozma grew dim and fell into a deep sleep underground.
The dispersed energy had a special reaction with the natural energy, forming the special Z-Crystals.
In the Galar region, the cosmic Pokémon Eternatus crashed in a meteorite. The unique energy it released led to the special Dynamax phenomenon.
Eternatus was not content. It began to emit a red light, attempting to absorb the life energy of the entire Galar region to make up for its energy loss.
A black vortex known as the Darkest Day shrouded the sky, raging across the Galar region.
The inflated and violent Dynamax energy also caused the Pokémon in the entire region to enter an uncontrollable Dynamax form, and Galar fell into its darkest hour of chaos.
At this time, two heroes used a legendary sword and shield to stop Eternatus and successfully drove away the Darkest Day, saving Galar.
The dispersed Dynamax energy spread throughout the Galar region, forming unique Galar particles. After excessively absorbing these particles, Pokémon could enter their Dynamax form.
With this, the world's formative period officially ended, and the historical process entered a new chapter, the ancient period when human ruins and civilizations appeared.