Arc

One of the two "Old Gods" that oversaw the game prior to the first generation.

Arc is often considered the creator of Pokemon. It's energy attributed to the evolution of Pokemon.

Arc and Zen lived in a peaceful duality, each being the overseers of the world. But, Arc became furious when humans invented the Pokeball, which was used by some as a way to enslave Pokemon. Arc started creating Corrupted Pokemon as a way to punish humans.