I can play a capable Jungle Nautilus, but I've come to the realization that I can't carry with him. His damage is pretty mediocre, so I rely on my teammates to kill for me, which is iffy.

If I want to carry or make an impact from the jungle, which characters would you recommend? Oh and a champion like Lee Sin takes more mechanical skill than I have time to master ;_;

I'm thinking Amumu or Hecarim for my next project.
I would recomend Shyvana, fast clearing time, very mobile, decent aoe damage and good initiation.