Thats what i thought mate gf is telling me you need it to go online, i was saying nah its just for scanning those cards. BTW is there an alternative method to inject the cards into your save similar to how you can inject pokemon into pokemon Y.
I don't really know, I couldn't care less for amiibos.
There is something called amiiqo, I think is used to backup amiibos, use the ones you can download from the internet and inject them as if they were real ones with a base included?... Not really sure, look it up, don't quote me on that xd.
I downloaded a game that required a amiibo to work, so I downloaded a savefile that someone else uploaded with amiibos saved and it worked with no problem.
But game sucked and I got rid of it anyways, not really sure what else can you do about it.