Elbst Horn

Elbst Horn is an other item. When used, it awards the Cavalry Elbst mount.

Source
Elbst Horns can be purchased, with Trusted reputation, for from the following vendors:
 * Sahagin Vendor - Western La Noscea

Elbst Horns can also be obtained during the Moogle Treasure Trove event by exchanging 30 with the following vendors:
 * Itinerant Moogle