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Design principle of Concrete Structure item
Design principle of Concrete Structure is an active item in Daydream all Day, a mod for The Binding of Isaac.
Description
Has a 50% chance to petrify all enemies in the room for 5 seconds, and a 50% chance to petrify Isaac for 2 seconds.
Enemies or Isaac hurt in this state will drop several 
Pennies.
Transformations
Item pools
Design principle of Concrete Structure can be found in the following item pools:
| Name | Weight |
|---|---|
| Treasure Room |
1.0/1.0
|
| Library |
1.0/1.0
|
| Greed Treasure Room |
1.0/1.0
|
Tags
The following tags are applied to this item:
| Id | Description |
|---|---|
| offensive | Can appear for  Tainted Lost. |
| book | Contributes towards the Bookworm transformation. |
Special synergies
The following special synergies and interactions for Design principle of Concrete Structure have been documented.
| Mod | Item | Synergy |
|---|---|---|
| --- | Book of Virtues | A red wisp that has a chance to shoot petrifying tears. |
| --- | The Book of Belial combined with Judas' Birthright | Petrified enemies take 2 additional hits, 33% of Judas' damage per hit. |
| --- | Car Battery | Petrify both enemies and Isaac. |
* Note that not all possible synergies and interactions are listed here.
External links
- Download Daydream all Day from the Steam Workshop.
Invisibility Cloak 
Timecard 
Barrier of Thorns 
Overload™ Shield 
Uncertified Exoskeleton 
Objectified Anger