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Shard of Glass item
Shard of Glass is a passive item in The Binding of Isaac, added in the Afterbirth+ DLC.
Description
Grants a 25% chance to drop a full Red Heart upon taking damage.
Taking damage causes Isaac to bleed and constantly spew out red tears around him. The direction of the bleeding can be influenced by holding a fire button, which will slightly increase its range. It can also be pointed diagonally.
After bleeding for 20 seconds, Isaac will take half a heart of damage, but only red hearts and rotten hearts are affected. This damage also has a 25% chance to drop a red heart.
The damage over time effect will continue every 20 seconds until the bleeding is stopped by receiving any form of red heart or rotten heart healing. Eternal hearts also work.
Bleeding will also stop if Isaac has no more red or rotten hearts, or if the next bit of bleed damage will kill him.
The bleeding effect of the item won't activate if Isaac has no red or rotten hearts.
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.
Item pools
Shard of Glass can be found in the following item pools:
| Name | Weight |
|---|---|
| Treasure Room |
1.0/1.0
|
| Greed Treasure Room |
1.0/1.0
|
Tags
The following tags are applied to this item:
| Id | Description |
|---|---|
| nolostbr | Unavailable for  The Lost after obtaining  Birthright. |
| summonable | Can be summoned via  Lemegeton. |
Special synergies
The following special synergies and interactions for Shard of Glass have been documented.
| Mod | Item | Synergy |
|---|---|---|
| --- | Abyss | Spawns a red locust that has a chance to apply bleed to enemies. |
* Note that not all possible synergies and interactions are listed here.
External links
- Check out the item description on the external Isaac Wiki.
Dog Tooth 
Dead Tooth 
Linger Bean 
Metal Plate 
Eye of Greed 
Tarot Cloth