__________________ 'In brightest day,in darkest night,when evil rise and terror strikes, the stars in the universe and the soul of the pure ones shall ensure their lose and protect us...........SILVER-LANTERNS LIGHT'
Probably in the way that any person not too familiar with the Surfer (myself included to some degree) likely would:
1. They've seen Magneto handle the combined forces of X-Men and Avengers TEAMS at various points of his career, teams that have included heavy-hitters like She-Hulk and Thor going at him simulataneously.
2. They've seen Magneto perform admirably against uber-mutants like Apocalypse, weaker alternate version of Magneto even rending Apocalypse asunder at the close of one storyline.
3. They see a man who looks like he is either covered in or made of metal.
Riding a surfboard. And they've been told the Black Panther put, and apparently kept, this metal-looking man in a choke hold. Despite Black Panther having no discernible super powers or strength augmenting devices.
If that were the extent of what I knew about Silver Surfer, I'd think Magneto had a very good shot of winning this, too.
Magneto can control magnetism?
Tough shit!
Surfer control matter, time and space!
What Magneto can do, Surfer does it way better. And without their powers, Magneto is a man, Surfer is a hardass who can throw 'em with the likes of Thor and Hulk.