Alright, I just spent half an hour looking at one video... It was JesiahTEG vs KOJ the most updated one (I chose that one because it looked like you made the most errors). And here is probably the most complete analysis I'm ever willing to do.
00:4 Don’t jump out of shield when being pressured by Falco like that. Wavedashing out of shield is a better option.
At 00:16 I think you were going for a drop down d-tilt. If your going to drop through platforms do a neutral b instead.
At 00:33 You wavedashed back causing you to miss the edge guard. If he tries to recovery directly horizontal you should be able to back air him off again anyway.
At 00:36 You tried approaching from above… with the b-air
. Even if you had managed to swat him. It put you in an unfavorable position. It’s best to just regain composure instead of just attacking constantly.
At 00:43 You d-aird. Which I noticed you like to do as an edge guard. Against spacies though, you gotta b-air. It’s so much safer and overall a more effective edge guard.
At 00:57 A sexy reverse up-b out of shield. That **** is nice for punishing dash attack.
At 01:05 ****ed up your dashdance out of spot dodge but that **** is hard to do so…
But then immediately after you miss another tech and get lazered. So like make sure you get those techs when it counts cause he could have forward smashed your slow get up animation.
At 01:20 Missed the edge guard, and I think you were going for the turn around grab right after, but you rolled
. That’s a pretty big blunder because that’s like a free stock that you just missed. Anyway edgegaurding can be hella clutch like directly after at 1:25 you missed neutral jab and lost your stock because of it…. That **** will lose you games.
At 01:31 You gotta do that crossover out of spot dodge, but that’s a hella good habbit to have of immediately spot dodging when you miss the spacing on your aerials.
At 01:33 Man if your opponent misses his l-cancel shines like that you'll get into the habit of shield grabbing like that and it will hurt your play in the long run.
At 01:37 Missed another edgegaurd although I’m not sure what you could have reasonably done in that situation… Predicted with a forward air I guess, I don’t really know though.
At 01:51 See the shield grab does not work O.O
At 01:55 Is what you should have done the first time. Spot dodge to cross over. That **** is so nice! Hard as **** to punish. And it just works.
At 01:56 Another missed edge guard just thought you should know.
At 02:15 What the **** was that. Your playing against someone who lets you get away with so much ****.
At 02:28 Man I ****ing love those cross overs.
In conclusion you have a fairly sexy Marth with mostly good habits and a few crucial bad habits. The sexy aspects were: 1. Spot dodge to cross over which is some pro Marth **** btw 2. Reverse up b out of shield to punish dash attack, I thought that was sexy as **** because shield grabbing dash attack doesn't work usually. I noticed that you probably spammed up-b even when it wasn't as safe, but eh, if it works. 3. You don’t have the habit of rolling. I’m pretty sure the few times you did it you were trying to wave dash out of shield and missed the timing or some ****. Man, do not get into the habit of rolling. It’s way to punishable and imo there are better options for every character except maybe like C. Falcon. 4. Oh and your combos and tech chases are good too.
BUUUUT you wanted to know how to improve your Marth so here’s where you ****ed up: 1. You tried jumping out of shield on a Falco shield pressure which, like it did, will probably just get you shined into combos. Personally I like wave dashing backwards out of shield to f-smash or f-tilt to punish this (I’m not sure which one is the better or more standard or whatever) 2. You tried approaching from almost directly above. Bad idea. Approaching from above is kinda what you have to do in that match up, but not directly above... You know what I mean. I can’t think of a situation when directly above would be a viable approach. 3. Really, your biggest thing you probably need to work on is your edge guarding. You let so many opportunities slide where it should have been stocks. And even lost a stock from a failed edge guard O.O That like a two stock ****-up or something. Anyway clean that up before you work on any of the little things.
Edit: And I final note I probably did this for as much my benefit as yours.