Hey, searched didnt find this, but i wasnt sure on what to search for.
Ok so first you need to be an enchanter 225 and be able to get to Halaa in Nagrand.
Its a bit hard for me to check this since the item isnt there atm on my server. Basially the blade merchant in halaa sells these thrown weapon that are unique and cost about 3g. They disench into Greater Planar essence x 1.5 which can be up to 20g on my server EACH ripoff.
Simply buy for 3g. Disench. Buy. Disench. Because they are unique you will have to do it one by one.
i think there is only 3 of them at a time so no big money, but if your passing buy can be handy.
TY
Chris
EDIT: Think its 225 but cba to check atm