>>44137399Depends entirely on you. For a Sinnoh-centric fic, it makes complete sense to go on with the greek theme and expand on it as this was the original intention.
If you have Arceus on something that isn't Sinnoh, you can just make your own lore without breaking your head over reading information on other religions. The plates themselves act as a sort of macguffins that can easily be used to summon him or reach a new land. It's all up to you on how you want him to act, what he does, ect.
