Xanathar’s Guide To Everything is probably the best set of rules for D&D players. According to a forum statistic, over 80% of D&D players have played this book.
This version 5e will update more great things like new missions, magic and mighty skills. Moreover, updating the system is really tight, logical and engaging that makes players truly immersed in the D&D world.
The layout of this book is very easy to see and understand for newbies. It has many systems and tools that give Dungeon Master new ways to personalize their games, and expand the way players can participate in century campaigns.
This book relies on the rules in the three core rule- books. The game especially makes frequent use of the rules in chapters 7- 10 of the Player’s Handbook: “Using Ability Scores,” “Adventuring,” “Combat,” and “Spellcasting.” That book’s appendix A is also crucial; it contains definitions of conditions, like invisible and prone. You don’t need to know the rules by heart, but it’s helpful to know where to find them when you need them.