Whether you are a new Game Master or experienced storyteller; you can always find new ways to hone your craft. This 256-page Pathfinder Second Edition rulebook contains a wealth of new information; tools; and rules systems to add to your game. Inside you will find handy advice for building your own adventures; designing towns; and creating vibrant characters alongside rules systems for dramatic chases; thrilling tournaments; and deadly duels. This book also includes more 40 pages of sample nonplayer characters; from the simple town guard to the vile cultist; presented to make your job as GM that much easier! The Pathfinder Gamemastery Guide includes: Rules; advice; and guidelines to build adventures; campaigns; and the denizens and treasures that lurk within; from settlements to nations to infinite planes! Creative variant rules to customize the rules to make the game your own; including variant bonus; feat; and magic item progressions; characters gaining the power of multiple classes at once; and more! All sorts of new and variant magic items including intelligent items; cursed items; artifacts; quirks you can add to items; and a brand new type of item called a relic that scales with your character! A catalog of subsystems to handle unique situations; from thrilling chases to researching mysteries to vehicle combat to elaborate duels to sandbox-style hexploration and more! Plus; a universal victory point system to help you design your own subsystems! * More than 60 new NPCs to use in your game; designed for maximum usefulness to all Pathfinder campaigns!