Western Guard Camp - The Material Vendor named Feinia - requires 75

Tested who can dropp it, added it. But the dropp rate is low.
So I would say add a Dropprate of around 20%
Drops only max 2times from one mob. (1~2)

http://bdocodex.com/cn/item/44180/?sl=1
That dropps much more would say 50%.
can drop up to 6x from one mob. (1~6)

All tested Mob by mob, without node point active.