Similarly to Super Smash Bros. Ultimate, Amiibo are compatible with Super Smash Bros. for the third time in the series. Amiibo fighters will closely follow strategies that the player uses against them - for example, more defensive players will find that their Amiibo characters copy their defensive play style. 29 new amiibo were released in association with Super Smash Bros. Aether.
Unlike in previous iterations, amiibo now earn experience points from fighting. With enough experience, an amiibo can level up, up to Level 100. While fighting and earning experience, amiibo can find collectibles such as trophies and stickers.
With a total of 17 newcomers (29 including Downloadable Content), several new amiibo were made to be compatible with Super Smash Bros. Aether. These were sold in waves, starting on the day of the game's release.
Wave 1 was released on July 8th 2018 and included Captain Toad, Krystal, Chibi-Robo, Spring Man and Spyro.
Wave 2 was released on July 31st 2018 and included Midna, Waddle Dee, Decidueye and Lip.
Wave 3 was released on August 19th 2018 and included Tetra, Magolor, Dillon and Shovel Knight.
Wave 4 was released on September 3rd 2018 and included Waluigi, Galacta Knight, Excitebiker and Shantae.
Wave 5 was released on January 18th 2019 and included Simon Belmont, Ninten, Gengar, Ghirahim, Isabelle and Marx.
Wave 6 was released on July 21st 2019 and included Pyra, Geno, Dragonborn, Isaac, Funky Kong and Banjo & Kazooie.