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Odd Key trinket
Odd Key is an unlockable trinket in Benighted Soul, a mod for The Binding of Isaac.
Description
• Boss Rush keeps open.
When Boss Rush is finished, spawn Pandora's Box, and then removes this trinket.
With Mom's Box, spawns 1 extra Pandora's Box.
The golden version spawns 1 extra Pandora's Box.
Only one Odd Key is valid for a time.
How to unlock?
Complete Boss Rush on Hard Mode as Benighted Lost.
Special synergies
The following special synergies and interactions for Odd Key have been documented.
| Mod | Item | Synergy |
|---|---|---|
| --- | Trinket multipliers | Spawns 1 extra  Pandora's Box. |
* Note that not all possible synergies and interactions are listed here.
External links
- Download Benighted Soul from the Steam Workshop.
Old Penny 
Crack Callback 
Foe 
Neopolitan 
Wild Milk 
Black Charm