In-game pickup line
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Mechanics
What Mystery Sack does
- The familiar generates a random pickup roughly every five or six rooms.
- The result can supply resources without consuming an active-item charge.
Achievement #124
How to unlock it
Defeat The Lamb as Eden.
Unlocking an item and finding it during a run are separate steps.
Explore more unlocksIn a run
Practical note
Pick it up with rooms still ahead to get more chances at useful drops.
Reference
Game data and sources
The item ID, quality and pool listings, icon, game-file tags, and short pickup line come from the extracted Repentance files. This effect explanation is an editorial summary checked against the references below. Repentance+ can differ.
