Creating a compelling tale takes more than just heroes - it requires a complex cast of allies, adversaries, and villains! As the Game Master, your job is to narrate the story, working with players to imagine an epic adventure. The GM Core is here to help you with every facet of the game, including guidelines on story structure, tips on creating thrilling combat, and amazing treasure to reward your heroes for saving the day! The book has everything you need to become a legendary Game Master.This Pocket Edition presents the same contents as the standard edition in a smaller sized softcover for a lower price and better portability. Pathfinder GM Core includes: The rules needed to run a game of Pathfinder, including guidelines for creating challenging encounters, determining success, and giving out rewards. Advice aimed at making you an incredible Game Master, along with tools to ensure you and everyone else at your table has a safe and enjoyable experience. Guidelines to help you create your own content, from campaigns and adventures to hazards and monsters. Rules subsystems to help you handle a wide array of game situations, including rules for chases, duels, research, infiltration, and more! A guide to the world of Lost Omens, with a look at several important regions, an examination of the peoples and cultures of the world, and a glimpse into what lies beyond the veil of the universe! Fully integrated errata from the first 4 years of Pathfinder Second Edition, including improvements to staves and talismans and all-new apex magic items!