I have found getting an early dagger helps a lot in getting early game kills, due to the noc's pasive of gaining an aditional 20% damage. You get the boots latter than normal due to his duskbringer, which gives you bonus attack damage and movement speed. The remainding items are standard for dps. I have found getting a manumane early can also be of use, expesialy in a 3v3.

Noc is one of the best farmers, he can easly cleave his way through a line of minions in seconds and can run in case of a gank without getting a scratch. Remember to visit the blue buff regular and red is not as necisary but does help in dealing exra damage.