Honestly I think a good nerf to Graves would be to weaken his jungle clear
I don't know about his clear speed early on necessarily but it seems like this dude takes almost no damage in the jungle. And I think that's a bit silly considering the fact a big chunk of his power is skirmishing and insane damage output, maybe he shouldn't be having such an easy time clearing, especially when he's pretty potent early.
At least this means there's some drawback to picking him and he's vulnerable to potential counter jungling. The rest of his kit doesn't bug me, it's annoying sure but it's not like he brings insane utility to the jungle and he is a bit underwhelming when he's behind whereas tank and bruiser junglers will still bring utility.
And if you make a cigar joke, I'm banning you from my fantasy tamagotchi league. It wasn't funny a year ago and it's not funny now.