Hey guys, haven't been here in awhile and instead focusing on a site for minnesota smashbros....anyway here's my input. I like to think i have a decent zelda so lets see how this goes.
First thing people are forgetting is that lucario isn't invincible during his extremespeed. Do you have a clue how easy it is to get a Dins fire on a lucario at the ledge after a dsmash? It's a free 10+% and quite frankly, against zelda, i wouldn't take the typical idea of "hey, i'm at 100% now, maybe an extra 50%-70% (be happy if you can make it to 140%, zelda wants you dead 120-130 at worst) if I'm really lucky mentality" into this matchup. Once lucario is at ~80% he is dsmash fodder, which leads to dins fire if zelda and lucario are remotely close to the ledge.
If zelda can land a lightning kick and lucario is at ~90% you better hope you can live horizontally and DI that baby down. And i wouldn't really advise zelda on a stage with many platforms...uair is probably the best kill move in terms of % zelda has overall. Oh, and watch out for nayru's love guys. It's gonna stop you from getting too close if you aren't careful, and it'll most likely be followed up by a running usmash or, for the sake of variety a farore's wind into the ground to catch you (so fun to pull off..)
-Oh, and of course upsmash, fsmash, dtilt>fsmash/tilt/usmash hurt. Don't try to dair her shield, she'll just usmash you and it'll hurt
Now here's where lucario can make up for this REAL quick:
-Get zelda off the stage EARLY, too late and she'll float over you, but most likely you can get a lot of fairs and a dair in there and hope for the gimp (probably after a bthrow)
-charge an fsmash EVERY recovery zelda makes so the tip is over the edge of the platform, zelda has a nasty habit of being a little high in the recovery and iirc it leaves like 10 frames until she falls a bit and grabs the stage.
-bait her into a nayru's love with an AS, then jump over the upcoming reflection and nair or dair her depending on the position (or ftilt if you have the time to land). Nayru has horrible end lag.
edits coming with some quotes from people
EDIT 1
I'm fairly sure there isn't a lot zelda can do about a fair approach. It goes over her nayru's and if she is using Din's shes about to get objected!. The rising fair angle seems to be a very good way to approach zelda.
upsmash or shield grab depending on the zelda you're playing. IDK why they would use din's if you're close to her, once you get close, it's a matter of zelda finding an opening.
Aura Sphere's are also very important. It pressures her to not use Din's, which might be second nature to the zelda in question (like when I fight %(%#ing lucas).
AS will force zelda into using nayru, if you're far enough away that zelda can dins camp you then you aren't doing your job, stay close to zelda because even if you fire that AS, she'll just shield it and you'd have just wasted your AS
Fsmash outranges anything she's got. If your Fair approach becomes predictable, you might try a fake fair approach and instead fall back and Fsmash (among other shenanigans). IF she tries to approach, and Fsmash wall usually works fer me.
IF zelda is approaching, which most will feint an approach and double back (easier to land fairs/bairs). Good zeldas would see you drop back and then DF you as you begin the fsmash...
But if zelda is legitimately approaching, yes, fsmash takes out the sh's.
Just watch out for Usmashes. Lucario doesn't have as good vertical weight as we would like. Spot dodging is usually a good thing, but remember the lingering hitboxes on a lot of her attacks....
you'll just get hit with the last one...just shield the usmash if you can
Take her to tha Frigate! Zelda's recover is preeeetty hit or miss. If she finds herself UNDERNEATH the stage with no ledge to snap to, she's dead fo' sho'.
yeah, pretty much
I'm pretty dang sure you want to stay AWAY from Corneria and other small-ceiling stages. Her Usmash is evil enough already.
I'd go as far to say that any stage where uthrow to uair is easy to do is a stage to stay away from, it'll kill much easier, take her to FD if you want a starter stage or frigate for the CP
Can someone address her Dtilt locks and how to escape them early?
that's why they call them locks...maybe SDI quarter circle mid-up