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D4 item
D4 is an unlockable active item in The Binding of Isaac.
Description
Rerolls Isaac's passive items.
Each item is rerolled into an item from the same item pool it was acquired from.
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?
Destroy 30 
Slot Machines.
Item pools
D4 can be found in the following item pools:
| Name | Weight |
|---|---|
| Treasure Room |
1.0/1.0
|
| Greed Shop |
1.0/1.0
|
| Crane Game |
1.0/1.0
|
Tags
The following tags are applied to this item:
| Id | Description |
|---|---|
| offensive | Can appear for  Tainted Lost. |
| nocantrip | Not available as card effects during the Cantripped! challenge. |
Special synergies
The following special synergies and interactions for D4 have been documented.
| Mod | Item | Synergy |
|---|---|---|
| --- | Book of Virtues | Removes all of Isaac's wisps and gives him one random wisp for every 2 items rerolled. Does not reroll Book of Virtues in the process. |
* Note that not all possible synergies and interactions are listed here.
External links
- Check out the item description on the external Isaac Wiki.
Punching Bag 
How to Jump 
D100 
D10 
Blank Card 
Book of Secrets