I'm sorry, Dave. I'm afraid I can't do that.
So ... you're saying that you can't be the best martial character ... without magic?Greatest swordsman is probably not at all reasonably even a purely physical mele'r classed (my english...is not good enough for that word) individual anyway.
This is a world wherein magic exists. Magic that can directly make you a better swordsman. Yeah. Thats a thing.
Oh no. Do you realize what you've done? By incanting the words, "Magic > Martial in D&D" you have summoned the horses of the forum apocalypse, thereby causing the eventual disintegration of the thread.
Couldn't you just say something not controversial, like, oh, hit points are meat?