Myrrh gum is consumed to increase skill learning speed by 60%. Originally, myrrh was ingested to actually increase the amount of skill learned per lesson. However, by decree of the Pentad, this efficiency has become an inherent quality in all adventurers such that the property has now been rendered obsolete. In exchange, Kastalia, Goddess of Lakes and Rivers, and Melantha, Goddess of the Seasons, transformed myrrh such that it now promotes different scholastic proporties solely in terms of learning rate. Myrrh also remains an ingredient in various elixirs, such as the health elixir.
Myrrh balls are classified as annual growth plants and can be harvested by concoctionists in the forests of Achaea.