Hello, Nocturne is my new favorite champ :), i tried running this and it usually results in me getting 20+ kills and no deaths :). this is my first build so please don't hate, i would also love some feedback even negative if you find i need to improve something. With this build i find myself farming what ever lane im in and it works pretty well. I wouldn't try to rush a kill only if your 100% sure you can get it. Just harass the enemy champs with Duskbringer and when you get your Ulti you can start ganking other lanes if your team doesn't mind.

I go with mark of desolation for nice armour pen, seals of clarity because i find noc mana starved and this seems to really help, glyphs and quintessence's of alacrity for a nice AS boost.

I put most in offense because i like the higher damage output and i just give him some more mana from Utility because he is mana starved.

ghost to chase down runners or escape, and clarity because he drains mana pretty quick and i hate going back to heal. you don't have to use clarity its really personal preference.

I like to max out Duskbringer first because i use that a lot, i just put one in shroud of darkness early game for the 20% i don't find it necessary until late game to max it out so i max out unspeakable horror second and my ulti 3rd.