At the time of writing, the Super Smash Bros. Ultimate patch containing Sora is now available! More importantly, though, the Min Min, Steve, and Sephiroth amiibo files were added to the game and can be accessed by any Nintendo Switch system without mods (thanks to jozz for this). Furthermore, it appears that Sephiroth’s amiibo may be released alongside Min Min and Steve / Alex in Spring 2022 (despite this not being announced at the moment). For more information, please direct your questions to our Discord community!