From publisher blurb:
With the RMFRP Essence Companion package for ERA you get 3 new professions with all skill costs, level bonuses and spell lists. Also 49 new spell lists are included, with their complete descriptions.
Combat and magic intertwine in the skills and magical abilities of the Warrior Mage. Words of power allow the Runemage to command both matter and minds. Pure Essence is shaped into tools, warriors and barriers by the Mana Molder.
Apart from all the base lists of the new professions, you can now add powerful spells to any character, by learning the new open, closed and training package lists from Essence Companion. Choke your enemies with Air Mastery, serve a feast fit for a king with Hearth Magic, or change the very structure of an object with Matter Shaping.