hello, I know I post alot but I was wondering could anyone here explain to me how to play the pit match up? I mean, what does pikachu want pit to do? you can't camp him and his speed and air game are very good...should I be trying to get him off stage and get a gimp? even usmash or utilt to thunder doesn't work bc he has a reflect. can anyone help?
As far as his camping goes, learn to shield arrows and advance during the lag. Powershielding is an important tool against camping, and one that you'll simply need to practice in order to get down. But yeah, Pit has one of the more annoying projectiles, since he can curve them and delay them to mess with your timing.
When it comes to the neutral game, remember that your F-smash outranges his tools (outside from side B, I think), so it's good for punishing if he whiffs a move in front of you. It also makes a good landing trap if you expect an air dodge.
Regarding gimps, Pika has an easier time gimping Pit than most of the cast. Pit does not get his up-B back once you hit him out of it, and you can (eventually) knock him out of all his jumps. If he tries going under the stage, use thunder jolts or QAC to the other ledge. The main spacing tool he's likely to use coming back to the stage is his F-air, so if you can maneuver around that, you're probably good. (Not that B-air/D-air can't be used in this regard as well, but in an edge guard situation you'll probably be attacking him from the front and possibly above.) Remember that Pit has a glide and a decent glide attack, although a thunder should force him out of said glide. (This is theory crafting on my end though, I don't fight Pit much.)
When it comes to ledge play, just spam thunder jolts. It's likely that most Pits will either mess up and get hit or become uncomfortable and try to get back on stage sooner or later. If you're facing a Pit with perfect planking... well, you need better advice than I can give you.
As far as KO's go, Pika does it much the same way as usual. Thunder setups work perfectly fine on Pit, since he's unlikely to have time to pull out his reflector. As far as Pit's KO moves, there's a few you need to be aware of.
Pit's Back air has a pretty powerful sweetspot when it first comes out, and that can kill you surprisingly early (80% or so), especially near the edge. His F-smash is also pretty good, although he's likely to have staled that during the damage racking. D-smash can kill, but it's more punishable if he misses, and overall less likely. His F-tilt can be used to kill, but it's a little slow. Still, it has the best range of his ground tools and can definitely surprise you, so be aware. Finally, he has a few "Just die already" kill moves for 150% or so... notably his dash attack, glide attack, down air, and up air. I don't think he has any kill throws, but you may wish to double check that.