Iterated Black Box is a familiar in Glacier's Laboratory, a mod for The Binding of Isaac.
Cannot appear naturally. Only appears by either using Pandora's Box in Blue Womb/The Void.
While heldSpawns a white avatar that chases enemies and presses pressure plates in uncleared rooms.
The avatar becomes active upon clearing a room, indicated by the glowing blue color.
When active and in uncleared rooms, the avatar emits a light wave every second. The light wave blocks enemy projectiles, deals Isaac's damage every tick, and charms enemies that are hit for 5 seconds.
Pressing drop button while standing next to activated avatar spawns a controllable blue crosshair. The crosshair disappears after a few seconds, and the avatar will act based on what the crosshair's was targeting:
| Target | Effect |
|---|---|
| Shop Item, Devil Deal | Makes everything in the room free of charge. |
| Chest | Opens every chest in the room, ignoring their open requirements. |
| Trinket, Pocket Item | Turns every trinket in the room into negative trinket, and every pocket item in the room into negative pocket item. |
| Item | Rerolls all items in the room. |
| Pickup | Duplicates all pickups in the room if the pickup can be reached by Isaac. Otherwise teleports all pickups to the center of the room. |
| Fireplace, Shopkeeper, Machine, Beggar | Blows up everything in the room that are the same type as the target. |
| Destructible Obstacle | Breaks all destructible obstacles in the room. |
| Door, Wall | Opens all doors in the room and creates Red Key rooms on all valid walls. |
| Dirt Patch | Digs all dirt patches in the room. |
| Tile with a special graphic | Spawns a Crawl Space at the target position. |
| Pit | Fills all pits in the room. |
The following tags are applied to this item:
| Id | Description |
|---|---|
| offensive | Can appear for Tainted Lost. |
| noeden | Unavailable as starting items for Eden and Tainted Eden. |
| nocantrip | Not available as card effects during the Cantripped! challenge. |
| nochallenge | Unavailable during challenges. |
| uniquefamiliar | Cannot be duplicated via Box of Friends. |
| hidden | Cannot be obtained naturally. |