- Aug. 30, 2018, 8:57 a.m.
Personally I've managed to obtain, most of the Expulsom from scrapping gear, especially trinkets, that I would not use or were a downgrade for my character. If you see a world quest that offers a trinket, go for it, as it may offer you an Expulsom material - that excludes crafted trinkets.
You can also manufacture it if you have the Alchemy profession. So maybe level that profession up, along with your Jewelcrafting?