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So there was a discussion on another board about Fire Emblem representation and how it could be fixed moving forward and I thought I would see what people think here.
I'll also add my comment from it to kick things off,
"In my opinion, if we're assuming the same number of unique and echo fighters we're pretty close to a good spot. Roy is really the sore spot here using a "unique" fighter spot with a semi-clone moveset. So if I was fixing the FE roster I would cut him and as a result Chrom as well. I would move the echo spot to Black Knight as an Ike echo, giving the FE series a villain and a super easy echo since they fight similar in canon. I would then add Tiki. I know some people want a mounted unit and I think that would be cool but I could see that causing some weird issues. Tiki is in a unique place where she can represent the old and new games as well as offering a unique moveset not yet seen in Smash. I think there would be several challenges in her design but I'm sure they could make it work. If however they cannot make Tiki work then I think Lyn would get the last slot.
Since I took an FE AT and promoted it I would add Xander and Ryoma as an AT. They would spawn and then "fight" across the stage causing blasts where they meet and hitting people on their way b
Well I play quite a bit of FE so I'll offer my 2 cents here. The first thing to note is that FE representation isn't actually nearly as bad as some make it out to be. The whole "too many swordsmen" thing is overblown, especially since an axe user, for example, wouldn't necessarily play much differently than a character like Ike. I don't feel a need to pick characters just for the sake of the weapon triangle; if they're unique and represent FE's history I'd say that's enough. And to a large degree we have that. Marth is the original protagonist and the de facto face of the franchise; he also appears in the most games and is very much the archetypical FE protagonist. Roy represents the GBA era and FE coming to the West (though I think Lyn does both these things better). Ike is a heavier character and differentiates himself from the "typical" lordling in backstory and personality. Robin represents Awakening, which was an important game for the series reestablishing itself; he's also highly unique. Corrin gives the 3DS era another rep and represents the various transformation characters in FE. Outside of having an axe, lance, or bow user we actually have a good mix both in terms of gameplay and representing the history of the series.
Still, there are some things that can be done to improve the FE roster. Of the two Echoes Lucina is the one I'd keep; both Echoes are from a game already repped by Robin and aren't unique, but they're easy to make and Lucina in particular is pretty iconic. Out of the uniques, I feel that Roy and Corrin would be on the chopping block. I feel Lyn could be more unique than Roy, is more popular than him, and could represent largely the same pieces of history but to a larger degree. If you really care about new weapons, she gets points for having a bow, which could be used for a special move, some throws (like how Fox uses his blaster for throws), and a couple other moves like aerials if they wanted. She's also pretty much the most popular FE character besides maybe Ike. I agree Tiki is also a pretty good choice, though she's not as popular or important as Lyn; both can also be pretty unique. I like Hector and Ephraim as characters, but neither is as important to FE as Lyn and all three can bring uniqueness. Hector may play similar to Ike, perhaps with some thunder effects, and Ephraim's lance is similar to Corrin's long reach, so while both could be made unique they're not any more unique than Lyn, even though she uses a sword. Black Knight I don't feel is necessary, but he's decently popular and pretty recognizable, so if he's an easy Echo addition I wouldn't mind him being there.
So I guess if I had to cut people, I'd cut Chrom for sure, and I'd cut Roy provided that Lyn is added in his stead. If I have to cut another character, I'd cut Corrin. Lucina is fairly dispensable but she's easy enough to develop to be kept. If for some reason we get another FE newcomer in addition to Lyn, Tiki would be among the good choices.