We did have a good cores post for a couple of old gens iirc (National Dex AG's one comes to mind, though outdated), not sure if there's that much interest/use of one for Galar personally due to how linear building is, but if you or anyone else wants to set one up, feel free to - but PM me the thread OP so I can check over it before you post.
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Icemaster
Agentkeval
Okay, thanks!
Agentkeval
I was thinking of people putting their own cores, instead of giving out cores, makes some more variance and adds creativity