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Lucky Rock trinket
Lucky Rock is an unlockable trinket in The Binding of Isaac.
Description
Rocks and their variants have a 33% chance to drop a 
Penny when destroyed.
Note
This page shows the latest information as of the new Repentance+ (Online Co-op) DLC.
To see information about this trinket for the previous Repentance version, check this page instead.
How to unlock?
Destroy 100 rocks.
Special synergies
The following special synergies and interactions for Lucky Rock have been documented.
| Mod | Item | Synergy |
|---|---|---|
| --- | Trinket multipliers | Multiplies the chance for rocks to drop pennies, can drop +1 more penny per multiplier. |
* Note that not all possible synergies and interactions are listed here.
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.
Lucky Rock
• Rocks and other obstacles have a chance to drop one penny when destroyed
• Golden Trinket (without Mom's Box): Rocks and other obstacles have a chance to drop 2 pennies when destroyed
• Mom's Box: Rocks and other obstacles have a chance to drop 2 pennies when destroyed
• Mom's Box + Golden Trinket: Rocks and other obstacles have a chance to drop 3 pennies when destroyed
External links
- Check out the trinket description on the external Isaac Wiki.
Flat Worm 
Store Credit 
Callus 
Mom's Toenail 
Black Lipstick 
Bible Tract