Ever since it's been revealed that "Clone" characters will be called "Echo Fighters" i've been wondering who's gonna be the next Echo Fighter? They're not just going to announce a new term for a fighter, release ONE new one and leave it at that right?
I'd say the best contender is Dark Samus. Samus palette swaps show that Dark Samus simply isn't one of them. And as it seems, Dark Samus isn't a Assist Trophy...So...