In The Binding of Isaac: Rebirth and its expansions, Dream Catcher is a passive item that grants Isaac the ability to preview the item that will appear in the next floor's Treasure Room, offering a strategic advantage for planning future moves.
Primary Effect
Dream Catcher's core functionality provides players with valuable foresight:
- Next Treasure Room Item Preview: At the beginning of each new floor, Dream Catcher displays the item that will be found in that floor's Treasure Room. This allows Isaac to decide whether to visit the Treasure Room based on the revealed item or to skip it if the item is not beneficial or if he wishes to save keys.
Interactions with Other Items
Dream Catcher also has specific interactions when combined with certain other items, altering its behavior or providing additional benefits.
Devil's Crown
When Isaac acquires Devil's Crown alongside Dream Catcher, their interaction is as follows:
- Dream Catcher will show what the Treasure Room would have contained if Isaac were to enter the room without the effects of Devil's Crown active. This implies it previews the original, non-Devil's Crown-influenced Treasure Room item.
Found Soul
If Isaac has the Found Soul familiar, Dream Catcher enhances its capabilities:
- For every new floor that the Found Soul familiar successfully follows Isaac to, it will receive half a soul heart.
- This incremental gain of soul hearts allows the Found Soul to accumulate health, enabling it to withstand multiple hits from enemies.
- The Found Soul can gather up to a maximum of 12 soul hearts through this interaction, significantly boosting its survivability throughout a run.
