https://archive.nyafuu.org/vp/thread/46691144/#46694952Did this stuff a while back, and there's still a bit more to it that didn't apply to the ability/move thread there.
In short, some quests bless you with Plates when finished. The more Plates you've been blessed with, the less tedious of an Arceus fight you get. Each Plate still in it is +8 to all its base stats
if it's wild, capped at 255 for all 17 (which would make 256).
I'll admit, even missing 3-5 would make the fight extreme hell, but that's the price of several people wanting it to be a 1530 at full strength.
