my OC has already beaten him
he’s called “Saitama Killer” and he has the sole power to win against Saitama at everything.
There’s even canon evidence. (bullets hurt saitama because Saitama Killer’s gun is universe erasing)
cataclysm vetex?
Nah,he’ll just parry
gag character, nobody wins 
utsuho reiuji my goat would make him look like a cooked egg 
Do the impossible, see the invisible
I can’t, but I have a guy on speed dial who can
i’d clearly win
lets see you try
This dude probably
His evil clone that I just made up
Freedrock would beat him in one punch
Goku, Cursebeard in AO, Durza.
In a way, that makes freedrock a one punch man
so was one punch man really defeated if you defeated him in 1 punch?
Time itself
0_0
(complete sentence)
doesn’t he actually do something time related in the manga?