Board Thread:Naruto Discussions/@comment-38071683-20191217043714/@comment-9782468-20191217155748

I know Kakashi got a Sharingan, but he progressed pretty far on his own without it. And as Hokage without his Sharingan his prowess is still known throughout the lands.

I'd be more inclined to include Orochimaru if the question was just who got powerful on their own. But since it says naturally, Orochimaru doesn't really fit imo just because he kept stealing bodies and doing all his unnatural experiments.

Konan was pretty powerful on her own too. As was Mei and Onoki.