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The Book of Sin item
The Book of Sin is an unlockable active item in The Binding of Isaac.
Description
Spawns a random pickup, pill, card or rune.
Cannot spawn Micro Batteries. Other battery types can spawn normally.
Note
This page shows the latest information as of the new Repentance+ (Online Co-op) DLC.
To see information about this item for the previous Repentance version, check this page instead.
How to unlock?
Defeat all 7 Deadly Sins.
Transformations
Item pools
The Book of Sin can be found in the following item pools:
| Name | Weight |
|---|---|
| Treasure Room |
1.0/1.0
|
| Devil Room |
1.0/1.0
|
| Library |
1.0/1.0
|
| Greed Treasure Room |
1.0/1.0
|
| Greed Devil Room |
1.0/1.0
|
Tags
The following tags are applied to this item:
| Id | Description |
|---|---|
| book | Contributes towards the Bookworm transformation. |
| offensive | Can appear for  Tainted Lost. |
Special synergies
The following special synergies and interactions for The Book of Sin have been documented.
| Mod | Item | Synergy |
|---|---|---|
| --- | Book of Virtues | Spawns a random wisp based on one of the 7 Deadly Sins, independent of the pickup dropped. Pride: a blue bomb wisp in the middle ring. Greed: 3 yellow coin wisps in the outer ring whose tears can petrify enemies like  Midas' Touch.Wrath: an orange bomb wisp in the middle ring that fires flaming tears. They drop troll bombs when continuously firing and drop a bomb pickup when destroyed. Envy: a white face-like wisp in the outer ring. Lust: a randomly colored pill wisp in the inner ring that has the same effects as wisps spawned by  Mom's Bottle of Pills.Gluttony: a heart wisp in the middle ring that has the same effect as wisps spawned by  Yum Heart.Sloth: a Bob's Head wisp in the middle ring whose tears travel in an arc like  Ipecac but don't always explode on impact. There is a small chance for an exploding tear. |
* Note that not all possible synergies and interactions are listed here.
Internal item description
Below is the Internal Item Description as shown in-game.
Note that some stat changes are not displayed here. Please see the main description for the full effects.
The Book of Sin
• Spawns a random pickup
• Abyss: x1 locust .75x Isaac's damage
• Book of Virtues: x1 middle wisp - 2 hp - 3 damage
• Book of Virtues: Spawns a random wisp from 8 types
External links
- Check out the item description on the external Isaac Wiki.
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