don't ever resort to wobbling, i consider that sh*t a last-resort, dishonorable tactic xD. if you can do it or ever figure out how, i encourage you to repress it deeply within your heart <3.
anyways, the trick here is to space ganon as well as possible, but not become too defensive. all of ganon's approaches are very devastating to the shield, which is bad for shield-grabbing and especially destructive to nana. you're right, ganon has a very easy time killing her, so if you want to protect her, you should.
stay on point with wavedash spacing here, so that if he misses an aerial, you can quickly pop in and grab. be VERY CAREFUL though, because many ganon players will immediately do a jab if they see your wd coming. aside from the hard, shield-stunning aerials, ganon's jab is another way for him to avoid shield grabbing.
don't stay too focused on your grab game against ganon. he's difficult to grab. if you DO grab him, obviously you should capitalize on it and don't mess up a CG or grab combo (plz do not wobbles lol). but if you can't grab him, try different approaches. remember not to miss, but here are some options for non-grab approaches:
- dash attack - pops him up softly, sets up uair or bair
- dash cancelled usmash - same as dash attack but stronger, combo starter at low % and very strong at high %
- fair - sets up uair
- uair - if you know he's gonna jump, keep him on top where ic's are at an advantage from the ground
- wd filt/dtilt - incredibly fast ground approach, this sets up tech chases or grabs
on the other hand, here are some very dangerous no-no approaches
- wd grab if ganon is idle - ganon has WAY too many moves to destroy this. wizard foot, jab, double jump aerials, shffl aerials, heck, even up-B. before you grab ganon, always make sure you are able to grab him, because random grabs are going to get the ic's destroyed
- nanapult - you are sending nana to her doom. if you want a blizzard, do dash dance desynch blizzard, spot dodge, or back roll blizzards. keep nana close by.
- nair or dair - ganon is the mac daddy of CC, these moves will get you *****
uair a lot if he's on top. this is a good tactic against any character, and for ganon it's good because his only options coming down are dair and wizard foot, or an attempt to space an aerial. his air mobility isn't that great, so your disjointed uair should be able to keep him on top for a while. don't worry about killing him with some 0 to death combo... just damage him, find a way to get him off, and edgeguard accordingly, because ganon's recovery is pretty d*mn easy to guard.
also: your best stages are
- FD - bread and butter ic stage. best pick as always
- Dreamland - you need your space, space is good
hm, FoD is alright, the close death walls can be used to both ic and ganon's advantages
pokemon stadium is alright too, but when the stage transforms, ganon can use the rugged terrain to his advantage to prevent grabs
yoshi's story is a bad choice, ganon's overall reach will dominate ic's here