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Echo Chamber item
Echo Chamber is an unlockable passive item in The Binding of Isaac, added in the Repentance DLC.
Description
When Isaac uses a consumable (card, pill, rune, soul stone, etc), he also uses a copy of the 3 previous consumables used after picking up Echo Chamber.
Consumables used with mimic items, such as Blank Card, Placebo or Clear Rune, won't get added to the queue.
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 The Beast as Tainted Apollyon.
Item pools
Echo Chamber can be found in the following item pools:
| Name | Weight |
|---|---|
| Secret Room |
1.0/1.0
|
| Greed Shop |
0.1/1.0
|
| Greed Secret Room |
1.0/1.0
|
| Ultra Secret Room |
1.0/1.0
|
Tags
The following tags are applied to this item:
| Id | Description |
|---|---|
| summonable | Can be summoned via  Lemegeton. |
| offensive | Can appear for  Tainted Lost. |
| nocantrip | Not available as card effects during the Cantripped! challenge. |
| stars | Contributes towards unlocking Planetariums. |
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.
Echo Chamber
• Using a card, pill, or rune also activates the effects of the previous 3 cards, pills, or runes consumed
• Abyss: x1 locust 1.5x Isaac's damage
External links
- Check out the item description on the external Isaac Wiki.
Vanishing Twin 
Twisted Pair 
Azazel's Rage 
Isaac's Tomb 
Vengeful Spirit 
Esau Jr.