Another thing I should mention about Wii Fit offstage is her sun salutation. It charges fairly quickly and, unlike Lucario's aura sphere, Mewtwo's shadow ball, and Samus's charge shot, it doesn't push you back when you use it in the air. That means you can hit them point blank and not lose your positioning from it. This is also why it's a decent ledge get up option too because it does 18% fully charged and, with rage or deep breathing, it can reasonably kill at 120-140%, making for a good (and infuriating) surprise kill. Add to this that it heals you 2% if you shoot it fully charged and it doesn't have a lot of end lag, it can easily force approaches and be used to stall offstage.