It was just another day to everyone in the pokemon world. When out of the blue it was as if the very world was screaming for help. The wind started picking up. A tornado appeared without warning the ground cracked under people and pokemon's very feet. The sea roiled and waves started forming flooding beaches coastal towns and forest. Then everything stood still as it seemed reality itself split at the seams.
People watched as the legendary Pokemon long thought as myth rushed into the sky or sea. Their powerful auras and abilities on display though anyone with a keen enough eye could see how panicked they appeared. Then suddenly everything stopped as reality split allowing everything to see what lay behind the veil of reality.
A colossal pokemon white with gold accents. Who's being radiated nobility and power that left everyone breathless. Who else could it be but Arceus itself. To the keen eyed they could see that the pokemon god was injured. Dread crept up the spine of every person and pokemon as the being that injured arceus finally showed itself. It was colossal just like arceus but purple in color with tentacles on its face a right arm larger than the left with the right arm having three fingers the left just being a tentacle. The sheer sight of it driving some insane and some to the depths of despair.
Arceus voice reverberates through everything brain I'm sorry my children I cannot beat this being but I can give you a chance. Then arceus glows a blinding white light. When everything can see again the two cosmic beings are gone. What happens next though is something even arceus couldn't have foreseen. In front of everything's eyes another landmass form where arceus used to stand. Another landmass forms were the other being stood. From arceus landmass chain of white light shoot down to the pokemon world wrapping around certain legendary Pokemon the Kanto birds. The Johto dogs, the Regis, eon duo and the emotion trio and certain legendarys and super strong pokemon are pulled to the landmass. Tendrils of black fluid launches from the horrifying landmass dragging mew, Mewtwo, Lugia, ho-oh, Kyogre, Groudon, Rayquaza, and many of what would be considered the strongest legendarys dragging them to the horrifying realm. So is the day known as the shattering.