Read+Write feature:

Call on amiibo phone to design the character's home on demand / Store house design and furniture for sharing

In short: Any Animal Crossing figure (except Villager) plus cards from Series 1, 2, 3, 4, and Promos. (Not compatible with Welcome or Sanrio cards.)

After storing a house design, scanning the amiibo in Animal Crossing: amiibo Festival (Wii U) to place the villager's house on the game board will use the stored house design's exterior.

Sources: Independent research, /u/B0SS_Zombie on Reddit


Read-only feature:

Unlock a golden Villager statue furniture item