Creation of the Universe

Before there was anything, there was nothing, and before there was nothing, there was Arceus. Arceus has forever been, forever is, and forever will be, a being outside of time, space, and the concepts thereof. Arceus exists because Arceus wants to exist and the universe began to exist because Arceus wanted it to exist. There is nothing without the consent of Arceus, and Arceus consented to existence because Arceus saw infinite potential.

After no time at all as it did not exist yet, Arceus created the universe, and became the first Pokémon. In fact, Arceus created infinitely many universes, each infinitesimally different to each other, so that Arceus may observe the infinite possibilities of Arceus's infinite creations. It can be assumed that anything Arceus is said to have done, Arceus did in every possible universe, with every possible difference. Arceus, as should be clear by now, has limitless power. Omnipotence with no bounds or maximum ability. There is nothing that Arceus cannot be or do, but that does not mean that Arceus cannot delegate.

Arceus was not within any universe as there was no space to be within, no time to be within it, and no balance between reality and its other side. Arceus created Palkia, Dialga, and Giratina, respectively, to solve these problems, with each given complete and total control over their new domain within their universe. Palkia and Dialga worked together to create space-time and the reality that most living beings reside in, while Giratina was given the other side of that reality to control. These three new Pokémon are known as the Creation Trio.