I'll offer my take from the gameplay perspective mainly, since I don't have much to say on the want angle outside of him being a surprise but a welcome one. (
do note that this is 100 % guesswork and not final.):
1. The fact that "long range" has been a major component for 3 of the last 4 characters is a bit strange (and part of a larger trend going back to Shulk, Cloud and Corrin even) It's kinda like they want to focus on a niché that was somewhat neglected before... but are focusing too much on that. It's a bit more of an issue from a competitive perspective since matchups between long-range characters winds up amounting to "Who can play the long-range game optimally and force the other character out of his / her comfort zone?"
It might not be as much of an issue from a casual point of view: while more and more matches will be spammy long range bouts, mistakes, iterms and casual matches in general being more aggressive will lessen the impact.
There is a major caveat though: Regardless of one being casual or competitive, another long range fighter might mean that campy players get even more annoying, since now there's another character that might be able to do that.
2. We'll have to see what One Wing /
Reunion (Sephiroth's Kingdom Hearts mode) does. The trailer did not show what it does, but one clue might be
Dissidia. There, Reunion grants Sephiroth the ability to Glide and access to Heartless Angel. Glide is a pretty safe bet for Smash, considering we just got Elytra with Steve. Heartless Angel is not a safe bet though - how does one program in the "Reduces the opponent to 1 HP" attack in Smash? Still, some attacks were shown off in the trailer after Reunion was revealed to be a thing: Octaslash and Black Materia. Again, we'll have to see what Reunion exactly does.
The really interesting part is if Reunion allows Sephiroth to cancel glides with an attack or float / floatcancels.
/
are already considered insanely good because they can floatcancel aerials from a shorthop (and thus chain aerials together while skipping the damage penalty to short hop attacks). If Reunion Sephiroth can do anything like that... hoo boy.
3. Masamune's infamously long, but also very, very narrow. Outside of his attacks possibly having a lot of recovery time on them, he might also miss a lot of attacks vs. crouching / pancaking characters. For the Sephiroth player, the key will be to be precise with the sword swings. There are some attacks that have massive coverage though.
4. Shadow Flare (The circling black orbs) might be a really strong anti-zoner tool. Sure, we don't know how much damage they do yet etc. But we do know that they detonate on their own, and thus zoners such as
and
will have to stop what they're doing to shield / dodge. Even against characters without a projectile Shadow Flare's going to force people to stop. Mewtwoking discusses Shadow Flare in some real detail
here.
5. Octaslash (The rapid sword swings) have an arrow showing the direction the attack will go in the frames before the attacks come out. Mewtwoking discusses that at the 11 minute mark in his video. The fact that the arrow can go straight up suggests that Octaslash is Sephiroth's Up B akin to a Mii Swordfighter Up B.
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My predictions are:
These characters will probably have a difficult time vs. Sephiroth:
- :Does not have a good disadvantage state at all, and Sephiroth can comfortably stay outside of Roy's "bear-hug" death zone.
- Most zoners such as : Shadow Flare and Black Materia might be useful counter-zoner tools, and Sephiroth's got a Counter which looks like a potential Reflector. Ergo, Sephiroth's probably going to be able to force closer interactions with most projectile characters.
- / (Lul of course) : Both Mario Bros. want to get in on people and string together stuff... but Masamune might as well be a wall in itself. If Mario can't reflect Shadow Flare with Cape it becomes even more annoying for the plumber.
Sephiroth will probably have to be very cautious vs. these characters:
- / : Pikachu is the prime pancaker of the cast, and a lot of its attacks go underneath stuff. Including Masamune presumably. Sephiroth's tall frame makes it easier to string together stuff vs. him too. Same goes for Pichu. Honorable mention go to , and because of the same reason.
- : She's adept at getting around stuff, and Flip Jump's always difficult to predict. If Sephiroth gets buried then ZSS' Up B might finish him off quickly, depending on his weight etc.
- : Can probably annoy Sephiroth with Hydrant and Trampoline. Bonus Fruit are unpredictable, A really difficult character for many to pin down, and Sephiroth might not be an exception.