Glarial's urn is an item used in the Waterfall Quest and has no known use after the quest. It is obtained by searching a chest in the dungeon underneath a tombstone near Baxtorian Falls. The description changes after the quest has been completed. Interestingly, this item is one of only a few that doesn't seem to stack in your bank account, so if you deposit two or more, they will each take up a different spot. lame