From publisher blurb:
Expert hunter, world-class tracker, judge, jury, diplomat and warrior. A Ranger is all these things and more. Once the exiled vagabonds of the Vast, these downtrodden criminals, refugees and marginalized banded together and learned to survive where no one else can, and have risen to be one of the most invaluable forces this side of the Empty.
The Ranger of the Vast is a new Companion Class for Dungeon World, primarily designed for use with the Boughs setting - Companion classes are complimentary subclasses designed for use alongside standard playbooks. At character creation, simply pick a normal playbook (Fighter, Wizard, etc) and also select a Companion Class. Throughout character creation and play, you may select options from either sheet.