Nocturne has been my main from the very start and I must say he is one of the best 6300 champs in the game. First of most people will comment on the fact why I have chosen madreds bloodrazor instead of atma since I buy warmoggs. Well my answer would be that atma gives about 50 AD but with bloodrazor I get 40 AD, 40 AS and an insane passive mandatory for taking out the opponent atmogs bruiser. I've also chosen blood thirster and wriggles because the two combined items gives about 40 percent lifesteal and you can easily 1v1 the opponent I.E carry with this much lifesteal. My build mainly focuses on taking out the enemy carry and bruiser since they're the ones who have the most impact in team-fights. Against mages I've mercury and wits end which together gives about 75 Magic resist, more than enough to counter that Karthus or Cassiopeia. Since bloodrazor is very expensive you have to economise and buy wits end since its very cheap and offers some pretty good stats. And for people who say atma gives more armour my answer would be, wriggles and bloodrazor together gives more than atma so you're tanky enough! Try out this build and please do comment if you like this build. :D