Any material within these books is eligible to be used in-game. Our official books include: 5e Dungeon Master's Guide 5e Player's Handbook 5e Monster Manual Xanathar's Guide to Everything Xanathar's Lost Notes to Everything Else (with DM approval) Volo's Guide to Monsters Mordenkainen's Tome of Foes Wayfinder's Guide to Eberron Eberron: Rising From the Last War Sword Coast Adventurer's Guide Out of the Abyss One undisclosed online bestiary Two undisclosed third-party bestiaries Monster Loot series
