So considering the fact Echo Fighters are getting more limelight, I can't help but think about what other Echo Fighters we could get. For example:

Bowser: Dry Bowser
Sonic: Shadow, Metal Sonic, Classic Sonic
Bayonetta: Jeanne, Rosa
Megaman: Protoman, Bass
Ryu: Ken, Dan (and possibly Akuma...?)
Fox: Krystal
Meta Knight: Galacta knight

Any thoughts or suggestions?

6478991
I have an idea for a possible echo fighter for Meta Knight and that is Galacta knight