I really need a answer about it.
Thank you in advance!
who knows but i see some people who get it from cm full looting chance buffed(from maps 100+ of course)
The only stuff affected by looting chance should be identifiable equipment and planium.
I dont know about vaivora, but skill gems definitely arent affected.
…Not affected… just random equipment gear.
vaivora doesnt affected by loot chance too