Birthright#619

Birthright is an unlockable passive item added in The Binding of Isaac: Repentance.

• Birthright is from the Antibirth mod.
• Before Antibirth the item originated from the Binding of Isaac: Community Remix mod, where it was known as 'Soul Script'.
• This item's name, description, 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.
• When Tainted Jacob picks up Birthright, Dark Esau, a representation of his own rage, seemingly becomes only angrier and doubles in power.
• Birthright's effect doubling Dark Esau's power, instead of Tainted Jacob's, and the quote "it's not yours", further reflects the fact that it was originally his.
• Red Stew spins down into Birthright, which could further the connection.
• Prior to patch V1.7.6, Tainted Jacob's Birthright pickup quote was "There is no escape".
• Tainted Keeper's pickup quote could be based off the song made by ABBA, "Money, Money, Money".
• Tainted Forgotten's pickup quote may be a play on words, as "recall" can also mean to remember.
• Eden's Birthright could be a reference to how Eden functions in the card game The Binding of Isaac: Four Souls, as Eden starts the game by drawing 3 treasure cards and selecting one to keep permanently while the other two are discarded.

Bug! Playing as Keeper, having more than 3 HP, and entering the area in which Knife Piece 2 can be acquired will remove the fourth HP (can be increased back to 4 HP after) Bug! Playing as Magdalene, having more than 12 hearts, and entering the area in which Knife Piece 2 can be acquired will completely remove all hearts above 12. Jacob and Esau Unlocks ??? (Boss) Unlocks The Binding of Isaac: Rebirth

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