Today, Wizard Of The Coast announced a new guide to be added to the Dungeons & Dragons library for 5th Edition in the form of Mordenkainen's Tome Of Foes. The book will be released in game stores on May 18th and everywhere else on May 29th, both with a standard cover and a limited edition version. We have an official description of the book below from WotC and both covers for you to check out, and if you want more in-depth knowledge of what's to come, Mike Mearls and Jeremy Crawford will be going over it more on Dragon Talk today at 2pm PST on the D&D Beyond YouTube channel.
Mordenkainen hails from the City of Greyhawk, but over the eons he has expanded his mastery of the major conflicts in the multiverse. Similar to 2016's Volo's Guide to Monsters, Mordenkainen's Tome of Foes not only contains everything you need to run challenging new monsters at the table with your friends but also provides tons of storytelling information on some of the most contentious relationships in the multiverse. You'll learn more about the schism between drow and other elves, githyanki and githzerai, and dwarves and duergar, in addition to reading about the incessant Blood War between demons and devils.
Players will love to delve into Mordenkainen's Tome of Foes to search for story hooks to use with their characters, as well as try out some of the player options for races like tieflings and elves, or maybe an otherworldly githyanki or githzerai. Dungeon Masters looking for inspiration and greater challenges for players who have reached higher levels of play will find much to explore in Tome of Foes.