Since @
Luco
mentioned it in the Character Competitive Impressions thread, I just thought of coming here to see what he was talking about.
Now, I did not come here just to argue why Greninja beats Ness or any of that stuff because that would be pointless, but I do want to say some things about this MU.
First up, I do understand that getting Ness offstage doesn't mean instant death for him in the MU, assuming that would be really dumb, however Greninja still does have the advantage offstage, if we can ever force Ness to use PK Thunder (which, by the way, Greninja doesn't struggle too much to do, a well timed shuriken can eat Ness's double jump or force him to airdodge and outside of that, our B-Air is fast and long lasting while also having a good range so we can smack Ness back a bit or just KO him outright) he's really at Greninja's mercy at that point and unless the Greninja messes up, it's very likely that Ness will be gimped.
Another thing I found out that works on our favor is that if we're hit by PK Fire, Greninja can prevent Ness from grabbing him
by mashing jab, somehow he manages to get the hitbox out and that will prevent Ness from getting the grab in, of course grabbing isn't the only thing Ness can do out of PK Fire, but it is something that helps Greninja in the MU.
Ness also doesn't deal well with being juggled by Greninja as he doesn't have much to help him land safely (N-Air would probably be the best choice) while Greninja has a lot in the way to keep Ness in a bad position, especially with Up-Smash being a very good anti-air that Ness doesn't have much of an answer to (N-Air trades with it at best).
Ness does have plenty of strenghts though, his aerial game is better than ours what with those disjoints in F-Air and B-Air (though I'm pretty sure our F-Air has more disjoint than either) and his grab game is amazing and very dangerous and of course, B-Throw. He can also harass Greninja pretty well with PK Thunder when he's offstage, though if Greninja manages to make his way across Ness might be left wide open for punishment.
I do think Greninja's ground game is better though, a lot of Ness's attacks on the ground are pretty laggy or short ranged so we have a better time dealing with him when he's on the ground since we can really exploit his weakness there with our range and mobility.
I've faced a lot of Ness players myself (including Kodystri and last time I played his Ness our last game was pretty close though he still won) so I think I know the MU pretty well to be able to talk about it and I never really felt overwhelmed when fighting Ness, though it never felt easy either, I find the MU to be even myself.
Again I'm not here to defend my character or anything, I just wanted to express my opinion on the match-up and see if anything productive could come out of it.
Oh, and I apologize if I'm derailing the discussion.