Mystery Egg is an unlockable familiar in The Binding of Isaac, added in the Afterbirth+ DLC.
Spawns an egg familiar that follows Isaac. It cracks and turns into a random friendly enemy when Isaac is hurt.
Regenerates upon entering a different room.
Clearing more rooms without the egg cracking will results in more useful friendly enemies spawned. The most useful enemies are spawned after clearing more than 13 rooms without taking damage.
This page shows the latest information as of the new Repentance+ (Online Co-op) DLC.
To see information about this item for the previous Repentance version, check this page instead.
Spawn 3 charmed (friendly) enemies in the same room.
Mystery Egg can be found in the following item pools:
Name | Weight |
---|---|
Treasure Room |
1.0/1.0
|
Greed Treasure Room |
1.0/1.0
|
Baby Shop |
1.0/1.0
|
The following tags are applied to this item:
Id | Description |
---|---|
nolostbr | Unavailable for ![]() ![]() |
summonable | Can be summoned via ![]() |
The following special synergies and interactions for Mystery Egg have been documented.
Mod | Item | Synergy |
---|---|---|
--- | BFFS! | The spawned enemy will be a champion variant, even if it normally cannot appear as one. |
* Note that not all possible synergies and interactions are listed here.