Well, hi there!
I've been using PKHeX for a while, but there's a problem that i simply can't solve, and i've decided that i could ask for some help here (if i should make this a thread or another thing, i'm sorry, i'm not used to make use of any kind of forum).
So... for some reason, in the last few weeks, i received 2 Arceus and a Shiny Celebi in the Wonder Trade.
But, when i try to give one of the Arceus to my friend, it says that it is way too mythical (and when i try to change some things, it says that i can't because there's something wrong with it).
What can i do to change it? I can't pass it through the tool (he doesn't have an 3ds with Save Manager, neither CFW) and we can trade any other pokémon normally