With the reveal of Echo Fighters as a distinct category of fighters in Super Smash Bros. Ultimate, the community at large is excitedly wondering which characters could be clones for the first time in the series's history. Amid all of the discussion, Delzethin has put together a video listing who he thinks could potentially be an Echo Fighter.
At the start, he establishes a set of basic rules, based on both what we've seen with Ultimate's Echo Fighters, as well as the clones introduced in previous games' rosters. Obviously, they must have an altered version of an existing character's moveset, but there's still some flexibility to be had. An Echo Fighter may have altered animations for some attacks, as long as the basic function is retained - this can be seen with Dark Samus, who has different animations for her dash attack and roll, as well as Chrom, who uses a regular sword grip rather than Roy's reverse grip. We also know that they can have original Final Smashes, and that they can have moves taken from characters other than the one they're directly based on.
Some of Delzethin's picks include fairly popular choices, such as Funky Kong, Shadow the Hedgehog and Impa, but also some more unorthodox ones like Blaziken as an Echo of Captain Falcon. Each of these comes with an overview of how each one would differ from the base character in terms of overall playstyle, individual moves, and even a few possible aesthetic tweaks. The video finishes off with a list of honorable mentions that could potentially work as echo fighters, but whose chances are a bit more shaky - either due to their potential for an original moveset, or due to factors that might prevent them from being included at all.
Author's Note: Who do you think will make it into Super Smash Bros. Ultimate as an Echo Fighter? Who do you want to see the most?