The Specification of the NFC Tags

NTAG215 NFC Tags are commonly used as Amiibo with the Nintendo Switch, Nintendo Wii-U and other NFC compatible Nintendo systems. These NFC stickers are read/writable so you can change the data as many times as you want. The data can be locked so the tag is read-only. Once the NFC tag is locked, it cannot be unlocked.

The NXP NTAG215 comes NDEF formatted by the manufacturer. This chip is a very fast modern chip with good reading range. You will require a NFC compatible device to write/read the NFC tag. Most Android phones support NFC functionality. With apps like TagMo, you will be able to read/write the NFC tag for Amiibo. Amiibo only can edit once.