There's a lot of unique/different things that are viable, and when it comes to a top nocturne, it's good and bad depending on the matchups.

the meta is so far outta whack, it's hard to tell what's good and what's crap.
example: fizz jungle. noobies would have much trouble working jungle for an assassian like fizz. few people can get em to work and still make people explode.
season 3 and 4 had its preferred champs in certain roles. season 5, anything goes. when i mean anything goes, i mean anything goes. you'll never know who, or where, they'll pop up.

He's a good duelist but his lack of escapes make him have a hard time top lane especially since a lot of junglers like to camp top lane. Also, as @Amped mentioned, he can't really farm without pushing so you're pretty much constantly inviting others to gank you. I don't recommend it.

He is good at trading with his passive but can get poked down by ranged champs in top lane these days.

He duels really well. It's hard to farm without pushing, though.

Dont use Dusk Trail a lot

[quote=Torque]Ninjaken[/quote] unless ur dat guy nope.

I don't have any tips because I have never played nocturne, but I feel almost every ad jungler can be a top laner.

Ninjaken