opponent behind you = disadvantage for marth
FH or SH choice should be dependent on whether or not there is a safe platform which you can jump to. Marth gameplan should be to constantly keep the opponent either in front or above you so I would observe my surroundings and retreat according to reset with or without a dair OOS.
marth's weight also makes it quite easy to ledge cancel so if you wanna be all techy you could FH dair OOS then ledge cancel it on the platform to w/e you want from there
and i don't think you should be so much worried about combo'ing from your dair OOS as much as resetting the field so that you can be positioned advantageously. Marth isn't a very good character if viewed from a combo standpoint imo. More of a gimper in the tier list.
I agree with the part that Marth should try to keep the opponent in front, but if you happen to be in the situation where they hit your shield with a laggy move from behind it's worth considering the dair oos.
I definitely disagree with not focusing on combos with Marth though. On fastfallers Marth has the ability to follow up almost any hit, and any opportunity is invaluable. Comboing and gimping are two sides of the same coin (the punishment game). Just one happens when you are near the edge.
ok. opponent is behind you. you're in shield.
when would SH dair OOS be better then FH dair OOS vice versa?
also what does DAIR OOS generally combo into best?
thanks
I'm pretty sure SH dair oos is almost always better than FH dair. The only situation I can think of where FH dair would be better is if you are playing vs a floaty, are standing under a platform, and they are at mid percent.
Usually if you land SH dair oos a couple of things can happen.
1. They CC it/are slightly in the air. In this case they'll be knocked onto the ground and most likely miss the tech. Just be ready to techchase in this case. Jab reset, get a regrab, fsmash the roll, whatever you feel comfortable with.
2. They are at low enough percent so they don't fall over or get knocked in the air. Try to get a grab maybe but depending on how early you started the dair you might not get a guaranteed follow up.
3. you'll hit with the sweetspot and pop them up. depending on their DI/percent, you can usually fsmash or utilt out of it. The dair seems to set up for a tipper often, which is nice.
4. You'll hit with the sourspot and pop them up awkwardly. Probably go for utilt here.
I would say only go for this if they did a laggy attack and hit your shield, though. If they are just pressuring you from behind I would do like junkimchi said and wd oos to reset the situation most of the time.
One of the most common situations for using sh dair oos is if fox/falco dash attacks your shield, because a lot of times shieldgrabbing will miss.