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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 information as of the latest Repentance release.
To see latest up-to date information about this item for the new Repentance+ (Online Co-op) DLC, 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.
External links
- Check out the item description on the external Isaac Wiki.
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