Now that some of the chaingrab panic has subsided it's time we start to think of options for counterpicks against Marth. This is not to say that matches between Marth and Lucas are impossible for Lucas. They're just more difficult than they used to be. It reminds me of an exxagerated match between Melee Fox and Marth only Lucas has nothing like the shinespike to help him out.
If the skill gap is great enough, Lucas is still going to beat Marth. But let's face it, in a tournament environment you're going to run into a Marth player of equal or greater skill than you and you're going to want a counterpick. Here are a few suggestions based on match ups I've done and what I've read on various character specific boards.
King Dedede
This is my personal choice. Dedede is pretty evenly matched against Marth. Dedede has a chaingrab on Marth (ironic I know) that can really help you out. It is escapable through Marth's Up B, but if you predict it you can give him a forward smash in the face. Dedede tends to deal moderately well with Marth's impressive air game and can spam his forward B for spacing. In addition, Dedede is a pretty flexible character. He handles some of the high ranked characters like Snake and MK pretty well although MK seems to be one of his more difficult matchups. He has chaingrab infinites on Bowser, DK, Luigi, Mario and Samus which can help you out if you happen to come across a player who's good with these characters.
Marth
Obviously Marth is going to be an even matchup against himself. Marth is a versatile character with a great air game and does well against most characters so you can use him for other matchups. He appears to have some trouble with MK but in general it's a pretty even match.
Snake
Snake is a wonderful character. He's currently doing amazing in tournaments. He does well against pretty much every character although I've heard he has some difficulties against Olimar. He handles Marth quite well. Overall just a good choice but realize that tons of people play him.
Metaknight
An all around great character. Edgeguarding is ridiculous with Metaknight. The Marth boards consider MK to be a difficult matchup. MK is currently top ranked for tournaments so he's going to do well against most characters. Very versatile.
Olimar
Somewhat of an eccentric character and takes a bit more work to use but could be very worth it in the long run. He tends to be about even with Marth but is extremely versatile against other characters. Hard to predict and fun to use.
Game and Watch
G and W is another one of those characters who just does well in this game. He can handle most matchups well. He has great tech chase abilities and can "combo" really well. He seems to be fairly even against Marth.
Wario
Wario is kind of strange to use but is surprisingly good. He's not quite as popular as some of the other characters doing well in tournaments right now so if you don't like the mainstream as much he might be a good choice. He is around even with Marth in most cases. Great recovery and aerials.
Wolf
Wolf has a nice projectile spam and generally can handle most matchups. I sometimes find him oddly similar to playing with Lucas. Just watch some Germ videos and you'll get some ideas on how to use him.
Toon Link
Toon Link has an aerial game which is about on par with Marth's and has some very nice projectiles that give Marth trouble. TL does well against a lot of characters due to his speed and versatility. Another good all around pick.
Obviously these are not the ONLY choices when picking a counter against Marth as a secondary main. These just seem to be some that do well against Marth and many other top ranked characters and may be good alternates for Lucas players. Feel free to try out other match ups against Marth and find out what works best for YOU.
If the skill gap is great enough, Lucas is still going to beat Marth. But let's face it, in a tournament environment you're going to run into a Marth player of equal or greater skill than you and you're going to want a counterpick. Here are a few suggestions based on match ups I've done and what I've read on various character specific boards.
King Dedede
This is my personal choice. Dedede is pretty evenly matched against Marth. Dedede has a chaingrab on Marth (ironic I know) that can really help you out. It is escapable through Marth's Up B, but if you predict it you can give him a forward smash in the face. Dedede tends to deal moderately well with Marth's impressive air game and can spam his forward B for spacing. In addition, Dedede is a pretty flexible character. He handles some of the high ranked characters like Snake and MK pretty well although MK seems to be one of his more difficult matchups. He has chaingrab infinites on Bowser, DK, Luigi, Mario and Samus which can help you out if you happen to come across a player who's good with these characters.
Marth
Obviously Marth is going to be an even matchup against himself. Marth is a versatile character with a great air game and does well against most characters so you can use him for other matchups. He appears to have some trouble with MK but in general it's a pretty even match.
Snake
Snake is a wonderful character. He's currently doing amazing in tournaments. He does well against pretty much every character although I've heard he has some difficulties against Olimar. He handles Marth quite well. Overall just a good choice but realize that tons of people play him.
Metaknight
An all around great character. Edgeguarding is ridiculous with Metaknight. The Marth boards consider MK to be a difficult matchup. MK is currently top ranked for tournaments so he's going to do well against most characters. Very versatile.
Olimar
Somewhat of an eccentric character and takes a bit more work to use but could be very worth it in the long run. He tends to be about even with Marth but is extremely versatile against other characters. Hard to predict and fun to use.
Game and Watch
G and W is another one of those characters who just does well in this game. He can handle most matchups well. He has great tech chase abilities and can "combo" really well. He seems to be fairly even against Marth.
Wario
Wario is kind of strange to use but is surprisingly good. He's not quite as popular as some of the other characters doing well in tournaments right now so if you don't like the mainstream as much he might be a good choice. He is around even with Marth in most cases. Great recovery and aerials.
Wolf
Wolf has a nice projectile spam and generally can handle most matchups. I sometimes find him oddly similar to playing with Lucas. Just watch some Germ videos and you'll get some ideas on how to use him.
Toon Link
Toon Link has an aerial game which is about on par with Marth's and has some very nice projectiles that give Marth trouble. TL does well against a lot of characters due to his speed and versatility. Another good all around pick.
Obviously these are not the ONLY choices when picking a counter against Marth as a secondary main. These just seem to be some that do well against Marth and many other top ranked characters and may be good alternates for Lucas players. Feel free to try out other match ups against Marth and find out what works best for YOU.