The Book of Vile Darkness is a mythic Legendary Artifact — Book card from Adventures in the Forgotten Realms Promos (PAFR), collector number 91s. Current market price: — (foil $2.35), TCGplayer market prices via Scryfall.
At the beginning of your end step, if you lost 2 or more life this turn, create a 2/2 black Zombie creature token. {T}, Exile The Book of Vile Darkness and artifacts you control named Eye of Vecna and Hand of Vecna: Create Vecna, a legendary 8/8 black Zombie God creature token with indestructible and all triggered abilities of the exiled cards.
All Adventures in the Forgotten Realms Promos cards and prices