From the back of the book: Inspired by the works of the Tome of Battle: Book of Nine Swords, Forged in Battle explores nine new martial disciplines from their inception to their current incarnations. Over 75 combat maneuvers utilize the Superiority die mechanic introduced from the Battle Master Fighter, along with new class options, including the new Bladesage class, backgrounds, and alternative rules for Honor and Dueling. Find your path to enlightenment and become a Sublime warrior! Warriors of the Sword Forged in Battle features seven new subclass options that utilize Superiority die and martial disciplines.