Forum Thread
Milcery breeding help
Forum-Index → Help → Answered → Milcery breeding helpYou can check what egg group pokemon have in the pokedex. (I think only the first egg group listed matters if there's more than one, but I'm not 100% sure on that.)
Ditto is obviously an option as well if you have one.
MEET THE GRAND BANNED USER WHICH CAN STILL EDIT SIGNATURES. HOHOHO LOL
The last two options require EggDex and Pokédex entries, respectively. So if you want your first Milcery, your best option is to buy one from another user.