>>52802229arguably.
having SE STAB against every pokemon in existence with a single move is unbelievably fucking broken.
it means arceus has three move slots to use for whatever the hell it wants, and arceus has the movepool to make those slots count. agility to prevent scarfers revenging it? psychic terrain to shit on priority? double dance with iron defense+calm mind to be immortal? taunt to shit on unaware walls? imprison to counter itself?
arceus does it all.