Classic monsters can get stale, and Game Masters often need to generate their own monstrosities to properly challenge players. But concepting, creating, and using monsters is no easy feat for any Game Master—and that’s where this book comes in.

In these pages, 15 of the brightest stars in the gaming industry share their wisdom for conceptualizing, developing, and maximizing the “Wow!” factor of monsters. Step by step, the writers show how to think up a new idea—or modify an existing one—then refine and test the design and get the absolute most out of the creature.