video1:
0:10--never pill that close--you could easily have been punished far worse than that
0:16--same deal, space you pills...also, using uptilt at low percents isn't the best option--he isn't mario
0:24--try not to be above marth on platforms--you got down safely, but simply falling though it first would have been better
0:30-0:45: poor spacing there with the jab, though not much you can do when they CC it. After you knocked him off, he shouldn't have gotten back on. Don't be afraid to stay by the edge when people are recovering--specially if they go for the cloud.
1:04--what was that? Messing up on getting to the ledge against marth leads to punishment--in this case loss of stock.
1:28-1:32: using you double jump and then Airdodging is never a good idea, espciallay that high above the ground, and that close to marth--were you trying to get on the platform?
1:36--rolling through marth is never a good idea--except to get severly punished later on for doing that
1:48-2:03--why not drop down and regrab, or even just get off quicker--you were taking too long just hanging on the edge. Then you roll past him off the edge, and get hit...and proceed to stand on a platform above marth again XD
2:38 or so: rolled into him again, this time not even through him. Try running, or simply walking to get places. Walk->shield is often safer than rolling.
more stuff, good use of pills, ending in a f-air offstage... >_<
generally, I'd say you need to work on a few things there.
1. SO you're hanging on the ledge...
This is important, as if led to most of your problems. You can quick get up, attack, roll, and jump--you used these, but got punished for them, because they all are rather telegraphed and punishable. Instead, learn to drop from the ledge, and use your second jump to either regrab, or to use an aerial--d-air, and u-air are the most useful
2. Learn to wavedash, I guess...
Not only is wavedashing off the ledge useful, but out of shield wavedashing is one of the best ways to punish marth.
3. Jump-cancel your grabs!
4. Work on better spacing--you were trying to challenge marth from above, and from marth's optimal range alot...Dash attacks only work until he stops tryign to f-smash you out of them...
