The Martial Master (PF1)

From publisher blurb:

In this book you will get a full 1-20 class that is conceptually a hybrid class of the monk, barbarian and swashbuckler classes. While you will see elements of each of the "parent" classes, they are introduced in a fresh way that brings a new way to approach martial combat. In addition to the base class you will get three archetypes to provide some tweaks on how the class is handled and new feats that compliment the class. All-in-all the martial master will provide an excellent class for those players seeking a new, more measured and interesting martial class or for GMs to provide a challenging combatant.