Suggest me some darkish/badass animes!

[Resort]

my cousin suggested that one for me.

Hellsing, I haven't watched the new version though.

I'm currently watching it now. (EP 18) It's really good, you should definitely watch it. There's a second season too.

IMO, it starts off a bit slow and boring, it's just setting up the world for you, then they start ripping it down. It starts to get really good at around episode 7 on-wards. It is good before that but was just a tad boring to me.