It reads, At the beginning of combat on your turn, equipped creature or a creature you control named Vecna gets +X/+X until end of turn, where X is the number of cards in your hand. Finally, The Book of Vile Darkness is a three mana Black Artifact that lets you create a 2/2 Zombie token if you lost two or more life in your turn
Then you may put an instant, sorcery, or battle card from your graveyard on top of your library
Flickering it allows you to reset your choices and keep copying spells
The decks often win via Thassa's Oracle with Demonic Consultation or Tainted Pact, though some also employ Bolas's Citadel + Sensei's Divining Top + Aetherflux Reservoir
And then you can play out a bunch of elves and win with something like Craterhoof Behemoth, or typal lords like Elvish Champion and Elvish Archdruid buffing all your creatures
Stop the Opponent Blocking There are certain red cards that can prevent creatures from blocking entirely