Here's My Bloody Valentine 3D), who hunt and kill supernatural or demonic creatures. The show developed a loyal fanbase over time while adding beloved heroes and villains along the way like Bobby, Charlie, and even Crowley. While it had some missteps and underwhelming storylines over the years, the show always managed to freshen things up when it started flagging.
That's one reason Bloodlines," which was intended to spawn a spinoff.
Evil Dead's Necronomicon - made the pages of the Book of the Damned from her own flesh and blood and based it off visions she received.
As Charlie explains, the Book of the Damned is said to have a spell for pretty much anything, so it could be used to remove the Mark of Cain. The book is littered with useful spells like resurrecting the dead or traveling back in time and is said to have ed from different churches and cults over the centuries. While the book does eventually lead to the Mark of Cain being removed from Dean, this later leads to more problems for the Winchester duo on Supernatural. Being in possession of it also makes them and Charlie targets for other interested parties.
The Book of the Damned has come in useful for the Winchesters on later seasons of Supernatural, however, and could be relied on when it came to finding a tricky spell or ritual.