Within these pages you'll find clear guidelines for creating new hazards and monsters, tools to design challenging, balanced encounters, and rules for rewarding characters for the dastardly challenges you array before them! Pathfinder GM Core also contains a dragon's hoard of magic items and treasure to entice and reward your players, from simple healing potions to magic weapons and armor and legendary artifacts, including dozens of brand-new items! Pathfinder GM Core is the second core rulebook for the fully remastered Pathfinder Second Edition RPG!