Hey guys, Edel's birthday is coming up in a couple days!
I've been playing a lot of Byleth in Smash (or rather 'Edeleth') and while they are fun, I still wish it had been Edelgard somehow. She probably doesn't have much of a chance to join Smash now, especially since Byleth stole her Amyr, but who knows......miracles have happened before. Chrom is in after initially getting denied. Banjo & Kazooie are finally here even after Microsoft bought Rare. Maybe it could still happen.
If she did join Smash, I envision her as a sort of semi-clone of Byleth, in the sense that they share some moves. Kinda like what Isabelle is to Villager or something. Of course, she would have two alts--one for pre-time skip wielding a killer axe, and one for post-time skip wielding Amyr. The killer axe might have to be sized up slightly to better match the proportions of Amyr. She has different idle stances depending on which alt is is, but is only holding the axe by default.
Neutral Special - Fire/Bolganone
Showcasing Edelgard's aptitude for magic, she fires a medium range projectile that flies straight ahead. Like Byleth's Failnaught, if you hold the button longer she begins casting Bolganone instead, which explodes a medium distance in front of her. Alternatively, the second spell could be Luna or Hades.
Side Special - Lightning Axe
The animation of this move is similar to Byleth's Areadbhar, or one of the axe crit animations in TH. She holds her axe with both hands and rushes forward, cutting upwards with an electric effect and high priority. In some ways it's pretty similar to Dark Pit's Electroshock Arm.
Up Special - Helm Splitter
While this move takes its name from a combat art, the animation is actually like one of the axe crit animations in TH, where the user jumps and then spins before slamming down with the axe. In that sense, it is very similar to Chrom's Soaring Slash, and Edelgard has super armor at the beginning of the move.
Down Special - Armored Strike
Edelgard normally can't learn this combat art, but who cares. She pulls out a large shield and makes a heavy overhead swing with the axe. In essence it functions like Byleth's Amyr special, granting her super armor before bringing the axe down.
Final Smash - Raging Storm
Considering how legendary this move is, it kind of has to be her final smash. However, an alternate idea is a gambit attack, where armored knights trample your enemy. Hubert might show up too, shouting "Marvel at our strategy!" or something.
One of her victory animations HAS to be her spinning her axe while saying "Now you know your limits!" The rest of her standard attacks utilize her axe in various ways. Of course her down smash and down aerial are the same as Byleth's. Also, when playing on the Garreg Mach stage, Edelgard is obviously absent from the background (and replaced by Hubert).
In summary, Edelgard would be the only primary axe user in Smash and functions as a punishing character who can take some hits with her super armor moves. She is one of the slower Fire Emblem characters, but fortunately has a projectile to balance out her moveset. As arguably the most central character in Three Houses (which is currently the best selling FE game I believe) who is very popular and who can represent both a protagonist and antagonist in the series, she has what it takes to remove all obstacles and soar away into Smash.