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Birthright is a passive item added in .
The Binding of Isaac: Repentance
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Issues: Some of the Birthright effects are not yet implemented. Until a new version of the game is out, use the talk page to discuss instead of inserting uncertain information.
Gives a unique passive ability that varies from character to character. The effects enhance the characters' special traits.
Characters whose effect is not yet implemented means the item does absolutely nothing if acquired. It can still be marginally useful for e.g. rerolls with or sacrifices with D4 . XVII - The Stars?
All new item pedestals cycle between two options. Previously-seen items are unaffected.
Soul hearts gained from health ups will be doubled. Health down pills will remove 2 soul hearts instead of 1, however.
is active regardless of health and Whore of Babylon is active without taking damage.
can gain 4 more damage boosts at the same +0.2 intervals, for a new maximum total of +14.0.
Azazel's Brimstone beam becomes much wider, like . No effect on damage.
Come back stronger
No direct effect, the item is triggered if Lazarus dies and becomes Lazarus Risen.
Temporary DMG up
Grants a slowly fading +21.6 damage bonus.
Spawns 3 random items from random item pools. Only one can be taken.
Prevents items with the internal tag
from spawning. In practice, this automatically rerolls most items that aren't beneficial to The Lost, namely ones that only give health, flight, and/or spectral tears or activate upon taking damage.
is unchained and free to move. It can leave The Forgotten behind and leave the room, and switching back teleports to the skeletal body even from hostile, closed rooms.
Conserve your faith
Activating an item using soul charges is sometimes free.
Jacob and Esau
What's yours is mine
The character who picks up the item gains copies of three of the other character's passive items.
Adds 4 more slots for passive items.
Adds 1 more red heart that doesn't drain.
The amount of pickups spawned from collecting an item is doubled.
Increases the maximum number of carried poops to 29.
The berserk timer gains 3 seconds instead of 1 when Tainted Samson kills an enemy.
Doubles the size of Tainted Azazel's sneeze attack.
Dead Tainted Lazarus
Items gained before Birthright will not be rerolled, either by taking damage or by items such as and D4 , and base stats become locked to what they were at the time of pickup.
Grants an extra life that revives Tainted Lost in the same room and deals 200 damage to nearby enemies. It can hit the same enemy multiple times.
Money money money
Strongly attracts the coins dropped by defeating enemies from a short distance. No effect on other coins.
Tainted Soul gains the ability, to retrieve the Tainted Forgotten automatically from a distance.
This item's name and unlock requirement are likely a reference to the biblical story of Jacob and Esau, in which Esau trades his birthrights to Jacob in exchange for stew. The reference is strengthened by the Birthright's specific effect when taken by Jacob or Esau, allowing them to "inherit" the items of their brother.