Would the almighty Arceus make a good companion?
I’m sure that you probably knew this when you asked, but unfortunately Arceus, mythological creator of the entire universe, would not make an ideal house pet.
To begin with, they’re pretty huge. Standing at ten-and-a-half feet tall and weighing over seven hundred pounds, Arceus would probably have a hard time fitting in most homes or vehicles. They could certainly live outside… but let’s be honest, size is far from the biggest issue.
According to the mythology of the Sinnoh Region, Arceus is older than the universe (Pearl, Platinum, Black/White, Black2/White2, Y, AlphaSapphire, ShiningPearl) and in fact created the world we live in today (Diamond, Platinum, HeartGold/SoulSilver, Black/White, Black2/White2, X, OmegaRuby, BrilliantDiamond, Legends: Arceus). Whether or not these legends are true, it is undeniable that Arceus wields an essentially incomprehensible power, which makes them an undeniably dangerous house pet. From Seismic Toss to Earth Power, Hyper Beam to their signature Judgement, Arceus could essentially destroy any human structure they wanted on a whim.
Now, would Arceus do this? That, I don’t know. We don’t really have much information about this pokémon’s behavior, owing simply to the fact that there is only one of them in the world and they have not been meticulously studied. This brings up the age-old problem with Mythical pokémon on this blog: not only is there a question as to whether they would make a good pet, there’s a much bigger question of if it would even be possible. Even if you were to encounter Arceus anyways, would they be interested in being a pet? I’d bet they probably wouldn’t, seeing as they have a lot of do.
All in all, given their immense size and even more immense power, and owing to the fact that there is only one of them in our whole universe, Arceus would most certainly not make a good house pet.