Read-only feature:

Play as or receive bonus from this character, depending on the mode

amiibo with written game data from Mario Party 10 will carry over that data as special dice.

Even without Mario Party 10 data, Gold Mario will start with gold dice and Silver Mario will start with silver dice.

Source: nintendo.co.jp / Thanks: memoryman3


Read-only feature:

Unlock "Chill" track in Rhythm Recital mode

Source: nintendo.co.jp