Okay, FINALLY a matchup I can help with!
Anyways, There're two ways to beat Samus: The Melee way, and the Camping way.
First: The Melee way.
She'll approach with her aerials (Most likely Dair and Fair) as well as Zair. A good Samus will not roll, and will use her bombs' mobility as a substitute, so don't get caught in a laggy attack with one nearby. Whatever you do, do NOT get knocked off the stage. As soon as you're off the stage, you're COMPLETELY SCREWED. A good Samus will spike you straight out of ES. (One of the few times I wish it dealt damage. ;-; ). Basically, it'll be a tough fight, as Zair outranges EVERYTHING. Go with the specialized FP>Fair>FFNair>A-A-FP>Fair>FFNair combo at the start for damage if you can.
The campy way... well...
Basically, just spam Aura Sphere, and you win. Samus SUCKS against camping. She literally can NOT do anything about it. Sure, charge shot clanks with AS, but you spam them MUCH faster. Also, missiles suck. Any disjointed hitbox goes through it. That means fair, ftilt, EVERYTHING, and Aura Sphere at high %. It's cheap, but it works. She can't do anything to you out of Zair range. Srsly.
Anyways, There're two ways to beat Samus: The Melee way, and the Camping way.
First: The Melee way.
She'll approach with her aerials (Most likely Dair and Fair) as well as Zair. A good Samus will not roll, and will use her bombs' mobility as a substitute, so don't get caught in a laggy attack with one nearby. Whatever you do, do NOT get knocked off the stage. As soon as you're off the stage, you're COMPLETELY SCREWED. A good Samus will spike you straight out of ES. (One of the few times I wish it dealt damage. ;-; ). Basically, it'll be a tough fight, as Zair outranges EVERYTHING. Go with the specialized FP>Fair>FFNair>A-A-FP>Fair>FFNair combo at the start for damage if you can.
The campy way... well...
Basically, just spam Aura Sphere, and you win. Samus SUCKS against camping. She literally can NOT do anything about it. Sure, charge shot clanks with AS, but you spam them MUCH faster. Also, missiles suck. Any disjointed hitbox goes through it. That means fair, ftilt, EVERYTHING, and Aura Sphere at high %. It's cheap, but it works. She can't do anything to you out of Zair range. Srsly.