I think Samus beats DK heavily. Even a couple of years back, when I wasn't nearly as good as I am today, I played even with the best DK in Europe (perhaps the world...).
My play has improved, but the idea has pretty much been the same since then. This is how I play many match ups:
Shoot missiles when possible, and punish their options against them.
For example: DK often uses Bair to counter missiles. This means I space my missile cancels so I can punish them Bairing the missile.
As Barbie mentioned, DK doesn't have the OoS-game necessary to deal with Samus' pressure. If DK CCs and hits you, good for you it only works at lower %s. When you've traded hits to mid %, he can't do that anymore and you're free to Ftilt how much you'd like.
I'm talking about spaced Ftilts, which he can't shield grab etc.
My play has improved, but the idea has pretty much been the same since then. This is how I play many match ups:
Shoot missiles when possible, and punish their options against them.
For example: DK often uses Bair to counter missiles. This means I space my missile cancels so I can punish them Bairing the missile.
As Barbie mentioned, DK doesn't have the OoS-game necessary to deal with Samus' pressure. If DK CCs and hits you, good for you it only works at lower %s. When you've traded hits to mid %, he can't do that anymore and you're free to Ftilt how much you'd like.
I'm talking about spaced Ftilts, which he can't shield grab etc.