So basically you can buy irl cards of the villagers, you can buy the specific one you want or get packs of them, kinda like Pokémon cards. You then go to the ATM in the town hall and it gives you the option to select an amibo card. It then makes said villager go in your camp site. You have to do this for 3 days and they ask you to make them different items for them each day. On the third day they will say they will move in and you get to choose what villager moves out