Satanic Bible

### Collection Grid

*(page 3, column 7, row 9)**(page 3, column 7, row 3)**(page 3, column 8, row 3)*

### Unlock Method

 Defeat Isaac as  Azazel

*Not to be confused with .*

**Satanic Bible** is an unlockable activated item.

## Effects

* Gives one Black Heart.
* Once used, the boss for the floor will drop a Devil Deal instead of a Boss Room item. This item must be paid for with hearts and will prevent Angel Rooms from generating under most circumstances if taken, just like a normal Devil Deal.
	+ This does not affect , , or .

* This item belongs to the  set. Collecting three items from this set will transform Isaac into Bookworm.

## Notes

* If taking a Deal leaves Isaac with no health remaining, he can still survive by taking the Deal and then activating Satanic Bible, which will leave him at 1 black heart.
* Bosses with set drops aside from Mom will still drop their normal item, but at the cost of one Heart Container.
* On XL floors, both items will become Devil Deals, even if Satanic Bible was only used once.
* The Lost,  Tainted Lost, and  Tainted Jacob in his ghost form can safely take any Boss Room item pedestals and it has no effect on subsequent devil deals.
	+ This also applies to the Lost form granted by the white fire on Downpour / Dross II. Taking a deal in this form will not remove hearts, making the player able to get at least 2 Devil Room items for free on that floor.
	+ This does not affect the items dropped on The Void.
* Using the Satanic Bible changes the Boss Room's item pool to the Devil Room item pool for purposes other than direct boss rewards as well. This works even if the boss does not normally drop items, such as Mom, Satan, or ???.
	+ Rerolls such as , , or  will generate Devil Room items.
	+ Using Satanic Bible *after* the Boss Room item has spawned, followed by any reroll, causes the new item to be drawn from the Devil Room item pool, but it will have no heart cost. Taking this item will not prevent Angel Rooms from spawning.
* In True Co-op, the pedestal's additional items will also be Devil deals, but be drawn from the Boss item pool.
* Using Satanic Bible on Downpour / Dross II will affect the Mirrored World Boss drop.

## Synergies

* : Spawns black wisps in the middle ring, looking like a red inverted cross. Each wisp increases the chances of Devil Room appearing by 10%.
* : Gives Isaac two black hearts.
* : The Devil Deal can be taken for free.
* : 2 Devil Deals will be offered, but only one can be taken.
* : The Devil Deal can be taken for free.  is recommended.

## Interactions

* : The spawned  or  will cost hearts like a normal devil deal.
* : The item spawned will be chosen from a random item pool instead.
* : The boss item is still a devil deal even after using Genesis.
* : Will generate wisps from the Devil Room item pool when used inside the Boss Room after Satanic Bible is used.
* : Taking the boss's item when it's affected by  will remove the cross however the Boss Room can't give the cross.
* : The second boss spawned will also drop an item from the Devil Room item pool that must be paid for.
* + Ascent: After using  If an Item spawned by Vanishing Twin is not bought with hearts it can be bought with coins during the Ascent.

## Trivia

* The original *Satanic Bible* was written by Anton Szandor LaVey, the founder of the Church of Satan.

## Gallery

* The icon of Satanic Bible as seen on the lower 3DS screen.
* Satanic Bible's splash image which appears when it's activated.