This is the build that I have been using for soooo long now, maybe 2 months? Absolutely love it.

One thing, you need your first sorrowblade BEFORE you start your second serpents mask, you get more damage which means higher lifesteal in the early-mid game.

Also, depending on the situation, grab a tyrants monocle instead of a second sorowblade, it may be more successful.

Just some ideas, and good job on a great guide.