Allows the user to engrave runes onto an item, giving it a special effect. However, as they cannot create the items on which to engrave the runes, said items need to be bought or won from battles. As a result, it's a bit of a costly subclass.
There are some People of the Land who also put the runes onto their bodies; however, those who do so are few and far between, and so the technique is unknown. It doesn't seem as though Adventurers are capable of replicating such an ability.