Keep the Wriggles, you are still largely a single targe damage dealer, and Wriggles is pretty damned important for keeping a decent clear time. You don't need the Brutalizer that much IMO, Nocturne is much more AA based instead of CD. You also need some tankyness, which Brutalizer doesn't give at all. Depending on the match up, I'd probably grab it after a Phage/Mallet. I usually go Boots/Pots or a Vamp scepter, Wriggles, HoG, Boots 2, Phage, and then depending on the matchup.