Binding of Isaac: Rebirth Wiki
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(in Repentance)

Tainted Bethany is a character added in The Binding of Isaac: Repentance. She is the alternate version of Character Bethany iconBethany. Tainted Bethany is unlocked by reaching HomeHome and using the Collectible Red Key iconRed Key, Cracked KeyCracked Key, or Soul of CainSoul of Cain to access a special room in one of the walls while playing as Bethany.

Tainted Bethany is unable to utilize Red HeartRed Hearts as health and cannot obtain red heart containers, similar to Character ??? (Character) icon???. When picked up, red hearts instead are converted to a resource unique to Tainted Bethany called "blood charges" at the rate of one charge per half heart. The number of blood charges currently owned is listed along with the pickup counters. Blood charges can be consumed to use Tainted Bethany's activated item when the item isn't fully charged, at the rate of one blood charge per empty bar of charge.

Tainted Bethany starts with 3 Soul HeartSoul Hearts, 6 blood charges, and Collectible Lemegeton iconLemegeton in the consumable slot.

Notes[ | ]

  • Speed, range, shot speed, tears, and damage will be reduced to 75% for any amount over their base value. Familiars and Orbitals also deal only 75% of their usual damage.
  • For example, with 4.5 damage, it is 1 damage over the base 3.5, and the 1 damage gets reduced to 0.75, ending up with a total of 4.25 damage.
  • Fire rate multipliers change what is considered to be the base value, so with Collectible Soy Milk iconSoy Milk, only tears ups above 15.00 will be reduced.
    • The only exception is Collectible Eye Drops iconEye Drops, which gets a reduction to its 1.2x fire rate multiplier if it's above base.
  • Direct fire rate modifiers like Collectible Mom's Perfume iconMom's Perfume do not get reduced.
  • Her soft tears cap is 4.43 instead of the normal 5.00.
  • Lemegeton has a 25% chance to pull from the current room's item pool when creating item wisps, and as such can be abused by Tainted Bethany to obtain large amounts of useful items by saving her blood charges until she enters a room such as Angel RoomAngel Room, Devil RoomDevil Room, Secret RoomSecret Room, ShopShop, Curse RoomCurse Room, or even a PlanetariumPlanetarium.
  • Blended HeartBlended Hearts will count as red hearts and only contribute towards the red heart charge meter.
  • Items created by Lemegeton don't count towards Transformations.
  • Items that normally grant consumables on pickup will not do so if created by Lemegeton.

Interactions[ | ]

  • Collectible Less Than Three icon<3 / Collectible Binge Eater iconBinge Eater / Collectible Immaculate Heart iconImmaculate Heart / Collectible Magic Mushroom iconMagic Mushroom / Collectible PJs iconPJs / Collectible Raw Liver iconRaw Liver / Collectible Red Stew iconRed Stew / Collectible Sacred Heart iconSacred Heart / Collectible Sausage iconSausage / Collectible SMB Super Fan iconSMB Super Fan: In addition to their usual effects, grants 12 blood charges.
  • Collectible 4.5 Volt icon4.5 Volt: Charges gained from 4.5 Volt will charge any active items in the active item slot first. If said active item is fully charged, charge will instead be added to Lemegeton.
    • Collectible Jumper Cables iconJumper Cables: Same effect; active item will be charged first.
    • Lil' BatteryLil' Battery: Same effect; active item will be charged first. If more charges than necessary for full charge are added, remaining charges will be lost, and not be added to Lemegeton. If picked up when active item is fully charged, charges will be added to Lemegeton.
  • Collectible Birthright iconBirthright: Spawns four Collectible Lemegeton iconLemegeton wisps of items with a quality of 3 or higher. These wisps are much larger and have much higher HP than normal wisps.
  • Collectible Blood Bag iconBlood Bag: Grants 10 blood charges.
  • Collectible Blood Bombs iconBlood Bombs: Can use 1 blood charge in exchange for 1 bomb.
  • Collectible The Jar iconThe Jar: Hearts will only collect in The Jar after achieving 99 blood charges.
  • Collectible Sacrificial Altar iconSacrificial Altar: Every wisp created by Collectible Lemegeton iconLemegeton will be converted to a Half Soul HeartHalf Soul Heart. The passive item effects granted by the familiars are retained for the duration of the floor.
  • Red heart restoration: All items and effects that restore red hearts directly will instead add blood charges.
    • Full heal effects, however, do not give anything.

Good Items[ | ]

  • 2 of Hearts2 of Hearts: Doubles the amount of held blood charges.
    • 2 of Hearts + Collectible Blank Card iconBlank Card: Allows for the creation of infinite blood charges as long as Tainted Bethany has more than 12 blood charges.
  • Queen of HeartsQueen of Hearts: Spawns 1-16 full red hearts, granting a potentially very significant number of blood charges.
    • Queen of Hearts + Any item that can duplicate Queen of Hearts (Rune of JeraRune of Jera + Collectible Clear Rune iconClear Rune, or Blank Card): Allows for nearly infinite blood charges.
  • Collectible Car Battery iconCar Battery: Causes Lemegeton to be used twice upon activation, spawning two passive wisps on use.
  • Collectible Charm of the Vampire iconCharm of the Vampire: Gives blood charges every 13 enemies killed, allowing exploitation of some enemies to farm infinite blood charges.
  • Collectible Converter iconConverter: Grants blood charges upon use with no change to health, allowing to get a blood charge every two rooms, and two charges every three rooms.
    • With Collectible Car Battery iconCar Battery: Consumes 3 Blood Charges and produces 4, still at no cost to Heart total, resulting in infinite Blood Charges.
  • Collectible Eraser iconEraser: Eraser can be charged and used with blood charges, allowing multiple uses per floor.
  • Collectible The Gamekid iconThe Gamekid: As Lemegeton familiars deal good contact damage this item allows to clear most rooms by simply running into enemies. In addition to this, eating enemies lets you gain charges for The Gamekid and Collectible Lemegeton iconLemegeton.
  • Collectible Glowing Hourglass iconGlowing Hourglass: Due to a bug, Glowing Hourglass can be used to duplicate Lemegeton's wisps via Tainted Bethany teleporting to the previous room with the Glowing Hourglass and then using it again. Duplicate wisps exceed Lemegeton's wisp limit allowing Tainted Bethany to stack copies of beneficial passive item effects.
  • Collectible Leech iconLeech: Gives 1 blood charge per enemy killed. Can farm infinite blood charges with enough patience and Door StopDoor Stop / Collectible Mercurius iconMercurius.
  • Collectible Little C.H.A.D. iconLittle C.H.A.D.: Essentially grants one blood charge every three rooms.
  • Collectible Maggy's Bow iconMaggy's Bow: Doubles blood charges gained when picking up red hearts.
  • Mega BatteryMega Battery: Both Tainted Bethany's held active item and Lemegeton are overcharged.
  • Collectible Red Key iconRed Key: With her blood charges, Tainted Bethany can explore more red rooms than other characters, allowing her to gain the benefits of red special rooms easily. In turn, this allows her to use Lemegeton to gain items from those item pools in addition to their normal contents.
  • Collectible Satanic Bible iconSatanic Bible: This item is particularly well-suited for Tainted Bethany, as blood charges may be used to repeatedly activate Satanic Bible and potentially compensate for the price of the Devil Deal that spawns in place of the boss room item pedestal.
    • Activating Lemegeton in a boss room after activating the Satanic Bible on that floor will cause it to pull from the Devil Room item pool when creating wisps. This works even on bosses that don't normally drop a standard boss room item, such as Boss Mom ingameMom, Boss Satan ingameSatan, or Boss ??? ingame???.
  • Collectible Unicorn Stump iconUnicorn Stump: As Lemegeton familiars deal good contact damage this item allows to clear most rooms by simply running into enemies. With enough blood charges it can even be used to kill late game bosses without danger.

Unlockable Items[ | ]

Gallery[ | ]

Trivia[ | ]

  • When Tainted Bethany dies, the orb embedded in her forehead stops glowing.
  • The achievement for unlocking Tainted Bethany is "The Zealot", a possible title for the character.
    • A zealot is someone with fanatical devotion to their faith or ideals.
    • This also correlates with the meaning of her card, V - The Hierophant?V - The Hierophant? associated with lack of adaptability (zealotry to tradition), good understanding (Lemegeton) and weakness (worse items); this is further shown with the Lemegeton's links to Judaism, the orthodox belief that fathered Christianity.
  • Tainted Bethany's starting health is listed as "-I" on the character selection screen.
  • Tainted Bethany's design is based off of the Exorcist and Necromancer enemies from The Binding of Isaac: Antibirth.

Bugs[ | ]

Bug Bug! Certain items that spawn blue flies in large quantities can cause wisps to disappear.


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