▾Table of Contents▾
Abaddon item
Abaddon is an unlockable passive item in The Binding of Isaac.
Description
On pickup +1.5 damage.
+0.2 speed.
Converts all red heart containers into black hearts, and adds 2 additional black hearts.
Bone hearts will not be removed, but only emptied.
While heldAdds a chance to shoot fear tears that cause enemies to run away from Isaac.
The chance to shoot fear tears scales with luck, starting at 15% with 0 luck, and goes up to 100% with 85 luck.
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 ??? as 
Azazel.
Transformations
Leviathan transformation. Collecting 3 items from this set will grant Isaac flight and +2 Black Hearts.
Item pools
Abaddon can be found in the following item pools:
| Name | Weight |
|---|---|
| Devil Room |
1.0/1.0
|
| Demon Beggar |
0.2/1.0
|
| Greed Devil Room |
1.0/1.0
|
| Ultra Secret Room |
1.0/1.0
|
Tags
The following tags are applied to this item:
| Id | Description |
|---|---|
| devil | Contributes towards the Leviathan transformation. |
| summonable | Can be summoned via  Lemegeton. |
| offensive | Can appear for  Tainted Lost. |
Special synergies
The following special synergies and interactions for Abaddon have been documented.
| Mod | Item | Synergy |
|---|---|---|
| --- | Abyss | Spawns a black locust that has a chance to apply fear 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.
Piggy Bank 
Mom's Perfume 
Monstro's Lung 
Ball of Tar 
Stop Watch 
Tiny Planet