From publisher blurb: MONSTER WEAKNESSES FOR EVERY MONSTER MANUAL CREATURE 500+ Combat and Social Weaknesses. This book provides combat weaknesses for every monster in the Monster Manual and social weaknesses for every monster that speaks a language available to player characters. The inspiration for these weaknesses comes from a creature’s anatomy, description in the Monster Manual, or well-known legends. Each weakness presented in this book is meant to be a trait that can be appended to a creature’s stat block. 14 Custom Illustrated Experts. This book contains characters knowledgeable in each of the different monster types to walk you through these monster weaknesses. These characters can be used in a campaign as NPCs or potentially be the authors of tomes or notes found in a library. Advice and Mechanics. This book contains advice and mechanics for discovering monster weaknesses as well as designing your own!