Okysho
Smash Ace
no, this is the right topic, don't worry about it.
As for edgeguarding, I don't think that it suits Marth anymore in brawl. It's too difficult what with the changing for his neutral B from a slash to a thrust, but if you really want to, I would suggest for vsing Lucas, simply counter or dodge, not much you can do there as for Snake, I'd say simply get in his way. use neutral or forward air to send him back to the oblivian. If his damage is high enough, you can attempt a meteor smash.
Hope that helped
As for edgeguarding, I don't think that it suits Marth anymore in brawl. It's too difficult what with the changing for his neutral B from a slash to a thrust, but if you really want to, I would suggest for vsing Lucas, simply counter or dodge, not much you can do there as for Snake, I'd say simply get in his way. use neutral or forward air to send him back to the oblivian. If his damage is high enough, you can attempt a meteor smash.
Hope that helped