Also, about the 215 tags, are they a write-once kinda deal? (Like burning a CDR?) And also is there a way to use the NFC reader you stated but in a raspberry pi? I would hope so because of the IO ports...
I remember I saw a video on YouTube where a guy (with his phone) flashed a yoshi amiibo then a kirby one but I can't find it anymore, maybe it depends on how you flash it to the tag? (I'm not a reliable source)