Yeah Pit's are disadvantaged. Dash attack out of shield is the guaranteed punish, tilts are better, can punish stuff with fsmash as it's longer range than us. Dash grab wrecking our ass too and yeah, just generally getting out done in anything slightly.
Fox maybe isn't too bad
Falcon is weird; don't know if it's even like I once said but there's a degree of him never getting out of disadvantage against us playing smart/precise [bair is stupid, i also hate how easy it is to up air people on the ground with him in contrast to ZSS]
Diddy Kong may not be much of a disadvantage anymore in theory but I doubt we'll be showing results in that against competent diddy's anytime soon. But I could see it going somewhere nice at some point
Sonic, lol. Silly match up. We have no presence within our mid-range of him, he can ignore our everything forever because the moment we commit (i.e. anything but walking... away from him) he'll get a solid punish/put us in an awful spot. So yeah, like almost no chance if we have a stock deficit. But as per usual, dancing blade has changed our match ups a lot though.
I agree with around even with Greninja, maybe slight advantage? my experiences with Sync were very positive (ZSS was evenish / his favour IIRC). Not a real shield grab is a lovely god send, our swords out prioritising a lot of his things is good, shuriken's are not hard for marth to play around; dancing blade actually working on him now too? Actually with that in mind, I'd think slight advantage is very feasible.
I'm quite surprised at Lucario? huh? Getting outspaced significantly and dies to tippers pretty exceptionally... Unless I'm missing some sort of auto combo I'm not sure how that's worse than ZSS.
ZSS, despite how much I love her and tease my counterpart with Marth, it's hard. ZSS wins on the ground by quite a bit, and that's something she doesn't so easily get against a lot of the cast... Dancing blade actually is quite a god send against her (transcended priority), but I don't think that's going to stop the match up getting worse over time once the ZSS players wise up. I know too much, I make Marths look like jello. Tools like zair, the hard punish / combo finisher of BOTH flip jump and boost kick, the mobility, the tilt advantage.