What exactly do we have on him? If you are talking about the bucket, then no, you are wrong. His fair walls us pretty bad and Bthrow is really hard to avoid. Not to mention his moves are fast and safe so it's hard to punish him with anything. Ness is hard to deal with really.
EDIT: An I believe we beat Lucas because unlike Ness he doesn't challenge us in the air and his groundgame isn't good enough to make up for it.
The only matchup I think Bucket actually makes a difference in is Pikachu. Fair does wall us, and dash attack has a lot of range too, but those moves have very specific uses and positioning. For example, I think only retreating fair really gives us a problem. I don't think he can do anything about fishbowl either (except for fair), he's fairly easy to juggle, and we are actually less susceptible to Bthrow because of bucket (despite our weight). My Gdubs dies at a higher percent than any of my characters to Bthrow (and my DI is pretty good for the most part). I think it's because of the way the move's knockback is in that it's not necessarily fast you just get caught in the momentum, but we can momentum cancel so I'll find myself bucket braking before I even come near the boundary whereas with Peach and MK I do like 12 Uairs and continue to steadily fly into the blastzone. Maybe I'm imagining things but it's something I noticed. Also... actually I guess I do think bucket makes a big difference in this matchup. Insta buckets off PK Fires in addition to bucketing PK Thunders doesn't really need to KO just sorta put mental pressure on Ness and even makes him easier to edgeguard with other methods. Like in the video techically I could've won the second match with a fair (But me trying to do extra like always wanted to win via Uair)
But essentially I'm saying we're good at limiting his options off stage and have multiple means of doing it that other characters don't have access to so it's even harder for ness to get back on stage versus us because we can use aerials, bucket, uair, or eat the thunder, whereas most characters just have aerials and eating the thunder (or a few with the ability to reflect PKthunder2 offstage.)
Yeah he can fair but it's still risky, we can beat him to the ledge and onstage, or Up-B him (on purpose OR by accident) and make all kinds of dumb stuff happen. His ground game isn't all that scary because we just outrange him.
Lucas on the other hand, I think is good at camping us, PK fire has a stupid hitbox and we don't really get much off bucketing it, Upsmash beats out dair, dsmash beats turtle, Ftilt is ****ing stupid it's fast and surprise KOs and the range isn't particularly bad. I just feel like that stupid disjoint he has on everything makes him a harder character to deal with than Ness. His recovery is better and harder to intercept, he's faster and Bucketing his recovery is harder and So is Uairing because he's aerial mobility in freefall is dumb. Doesn't his dair beat fishbowl? I think the only reason we even beat him in because he's lucas...
Also his KO moves are faster and his throws aren't too shabby either.
Edit: @ Meow, I'm sure he will be.