After watching azoh's video on lethality (The important part is from 5:10 to 16:00) (tl;dw Flat armor pen as a stat is nerfed and doesn't catch up to live version until your enemy is lvl 18) I decided to take his word and rush black cleaver into tiamat, finish boots and then dusk blade for the true damage and the passive, finish hydra and then start building lethality (Youmuus/Edgy of Night) since it starts to catch up or if I feel like I don't need it Ill just go Deaths dance/last whisper or whatever I need to build depending on how the game is going.

Also I've been taking the 5�r mastery since we get (theoretically) more flat armor pen from items (60 lethality which eventually becomes 60 armor pen) than we do right now (40) and I like the way it feels.

Basically that is my standard build for now and I would like to hear your opinions and if you have a pbe to test it out I would appreciate it <3.