Beauty is in the eye of the beholder, but evil is in its heart! Xanathar - Waterdeep`s most infamous crime lord, and a beholder to boot - catalogs lore about adventurers and ponders methods to thwart them. Its twisted mind imagines that it can eventually record everything! You`d be shocked to discover just how much he knows about you! Yes, you, adventurers! Assembled here in Xanathar`s Guide to Everything is new information on adventurers of every stripe. In addition, you`ll find valuable advice for those of nefarious intent who must deal with such meddling do-gooders, including Xanathar`s personal thoughts on how to dispatch anyone foolish enough to interfere with his business dealings. Alongside observations on `heroes` themselves, the beholder fills the pages of this tome with his personal thoughts on tricks, traps, and even treasures and how they can be put to villainous use. Xanathar`s Guide to Everything introduces complete rules for more than twenty new subclasses for Fifth Edition Dungeons & Dragons, including the cavalier, the inquisitive, the horizon walker, and many more. Also included are dozens of new feats and spells, as well as a system to give player characters a unique, randomized backstory.