There are several anime protagonists, aside from Solo Leveling's Sung Jinwoo, who rarely lose a fight.

So I'm a Spider, So What? isn't just a That Time I Got Reincarnated as a Slime ripoff, and Kumoko's journey is way more ...

Sword Art Online, Overlord, Mushoku Tensei: Jobless Reincarnation, Rising of The Shield Hero, and That Time I Got Reincarnated As A Slime are ... poke fun at both its characters and scenarios ...