Mitre
ItemRebirthUnlocked
passiveGame ID 173★★★★
How do you unlock Mitre?
Verified starting unlockSource data confirms that no unlock is required.
Grants a chance of converting any Red Heart pickups that spawn into Soul Hearts instead.
Available from the start
No unlock needed — this is available in every new save file.
What unlocking Mitre leads to
Nothing depends on this yet.
Source: bindingofisaacrebirth.wiki.gg
Imported 2026-09-13