Andy mythic question

Hey

I’m having a blast with selfmadeish dance of knives build and decided to take a quick look on guides.

None of them had andariels visage on. Why? With 100%+ lucky hit chance and with 2.4 attack speed the poison novas are spamming and triggering the poison passive which gives dmg and attack speed, and even doing some dmg.

Is it rly that bad and is the cowl of nameless rly that important? My andy has 75% increased attack speed with 2 hit MW.