Frozenserpent
Smash Journeyman
Ganon:
The most pressing issue I see is that you have a very vunerable recovery. If you want to play ganon at all, it is vital that you learn how to recover well. So, you probably felt pretty frustrated about the marth edgeguarding like that. The trick is to sweet spot the edge and ledge tech when they f-smash or d-tilt you. Otherwise, you're pretty much a goner. When I ledge tech, i also tend to wall jump ledge tech and up-b instantly after doing so, so i can either grab the marth or go over him, then Di his next attack, so that i don't die from that.
In addition, you use f-smash too much. Ganon's f-smash is simply not worth the risk of the lag, considering that he has some better options available at the time you f-smashed.
Marth:
Try to focus a bit more on your aerials instead of your ground attacks (which are much laggier). Sweetspotting is VITAL with marth (such horrible lag otherwise). Wavedashing is very useful, as it helps your spacing. You shouldn't dsmash as much, as you had better options available.
Against ganon, it is important to not expose yourself by needlessly using laggy moves (fsmash comes into mind), because it gives him the opportunity to hit you, and ganon's hits hurt. As for edgeguarding ganon, it's a fairly simple matter. Time your d-tilt or f-smash and hit ganon (you can hit him even when he sweetspots), or you can grab ledge before he grabs the ledge.
As for f-smash... it's a good move, but do try to tipper it. again, this comes from good spacing. You should also work on implementing grabbing into your game. Marth has a ridiculously long grab range and is frustrating to play against. And do learn how to follow up from a grab, as just throwing an opponent does negligible damage from marth.
The most pressing issue I see is that you have a very vunerable recovery. If you want to play ganon at all, it is vital that you learn how to recover well. So, you probably felt pretty frustrated about the marth edgeguarding like that. The trick is to sweet spot the edge and ledge tech when they f-smash or d-tilt you. Otherwise, you're pretty much a goner. When I ledge tech, i also tend to wall jump ledge tech and up-b instantly after doing so, so i can either grab the marth or go over him, then Di his next attack, so that i don't die from that.
In addition, you use f-smash too much. Ganon's f-smash is simply not worth the risk of the lag, considering that he has some better options available at the time you f-smashed.
Marth:
Try to focus a bit more on your aerials instead of your ground attacks (which are much laggier). Sweetspotting is VITAL with marth (such horrible lag otherwise). Wavedashing is very useful, as it helps your spacing. You shouldn't dsmash as much, as you had better options available.
Against ganon, it is important to not expose yourself by needlessly using laggy moves (fsmash comes into mind), because it gives him the opportunity to hit you, and ganon's hits hurt. As for edgeguarding ganon, it's a fairly simple matter. Time your d-tilt or f-smash and hit ganon (you can hit him even when he sweetspots), or you can grab ledge before he grabs the ledge.
As for f-smash... it's a good move, but do try to tipper it. again, this comes from good spacing. You should also work on implementing grabbing into your game. Marth has a ridiculously long grab range and is frustrating to play against. And do learn how to follow up from a grab, as just throwing an opponent does negligible damage from marth.