Nocturne is a fairly good champion.tbh he is a good assassin so try and help out as much as u can so try and gank more often. Take solo top if ur playing Nocturne. i prefer him to be a nuke as much as possible, sorta like Kha'Zix. you will need to max out ur 'q' first for good his harassment, followed by ur 'e' which will also play a good part in offense. playing defensive Nocutrne is sorta hard because......well he just is but his 'w' is also a defensive and offensive ability to choose wisely anyways u dont have to get berserker's greaves because he also does rely on cool downs which will epescially help ur passive quite alot. make sure you get 'H.D.O.' which is high damage output.

It is good to have a support champion in ur lane because u may need assistance in early game. Don't get too cocky just because ur reading my pro as build na just kidding. Watch out for 'm.i.a.' u may get shut downed!