Latios, the adorable Eon Shell Smash.
As for what exactly "Eon" referred to—an endless lifespan, endless energy, or something else entirely—Xia Yan did not know.
But he could more or less confirm that the energy Latios had used to activate the Rainbow Crystal was Eon energy.
A kind of energy that originated from Latios itself.
And this action further proved that both the Rainbow Crystal and the Five-Color Crystal were inseparably connected to Latios.
At first, Xia Yan had wondered whether Rayquaza had deliberately scattered these crystals.
But after thinking about it, with Rayquaza's proud nature, it probably would not do something so pointless.
Xia Yan had even speculated whether the rainbow and five-colored crystals might be related to the meteorite that had crashed into the Pokémon World and brought Mega Evolution.
After all, most Mega Evolutions in the Pokémon World had originated from that meteorite, and Rayquaza had also achieved Mega Evolution with its help.
But Xia Yan later dismissed that possibility.
Rayquaza's Mega Evolution actually relied on a special organ within its body called the "Emperor Organ." It could store the energy from meteorites that Rayquaza instinctively devoured in the atmosphere.
When Rayquaza Mega Evolved, the Emperor Organ served as both its Mega Evolution Stone and Key Stone, resonating with each other to complete the Mega Evolution.
Who would have thought?
After going around in circles, it had all led back to Latios.
Upon hearing Xia Yan mention "Eon energy," Dragapult beside him slowly revealed an enlightened expression as well.
No wonder there was so much Dragon-type energy mixed inside.
As Latios continuously poured out Eon energy, more and more crystals merged into the Rainbow Crystal.
And the more crystals fused into it, the more dazzling the light it emitted became.
No one knew how long it lasted.