Book of Revelations

The Book of Revelations is an unlockable activated item.

Effects

 * Grants a soul heart upon activation.
 * Increases chance for a Devil/Angel Room Door to open by 35% if held while killing the Boss of the floor.
 * Only increases the chance by 17.5%.
 * If The Book of Revelations is used at least once in a map, there is a higher chance that a Harbinger will replace the normal level boss:
 * 1) Famine in Basement / Cellar
 * 2) Pestilence in Caves / Catacombs
 * 3) War in Depths I / Necropolis I
 * 4) Death or Conquest (if unlocked) in Womb I / Utero I

Trivia

 * The Book of Revelation (note the lack of an "s") is the final book of the Bible. It depicts the apocalypse through a vision shown to John of Patmos and includes the Four Horsemen and themes of Hell, Satan, and The Lamb. This explains why using it causes the next boss to be a horseman, as well as why it increases the chances of a Devil Room.

Seeds
3C6Z 880R (Treasure room adjacent to spawn) 9867 22FF (Treasure room adjacent to spawn) 42ZY EYNS (Treasure room adjacent to spawn) 6A7C BBKN (Treasure room adjacent to spawn) BQ7G DLKQ (Treasure room adjacent to spawn) G98Z MNSS (Treasure room adjacent to spawn) RKV8 O883 GKM3 XJJ0 (Treasure room adjacent to spawn)

Book of Revelations