recursal/Fanatic-Fandom huggingface dataset:
The Heretic

**The Heretic** is a boss added in *The Binding of Isaac: Repentance* that can appear in the Mausoleum.

## Behavior

### Phase 1

* During the beginning of the fight, 5 Exorcists, which are shielded and invulnerable, summon The Heretic from a large pentagram, after which they turn into Fanatics.
	+ The Heretic is incorporeal until all Fanatics and the Pacers or Gushers they turn into are dead, similar to The Haunt's first phase.
	+ While incorporeal, The Heretic can still do contact damage.

### Phase 2

* Lobs 7 projectiles that, after landing, burst into 6 fires that spread out in a radial pattern. The landing position of each projectile is marked on the ground.
	+ The Heretic then follows up by launching itself towards Isaac, creating a radial burst of 8 lines of fire where it lands. It spends a short time readjusting its dislocated jaw before continuing to attack.
* The arena of the Heretic always spawns a number of unlit Fire Places. The Heretic can light up 5-6 of them before firing a purple  laser that connects all of the lit fires. The order the Heretic lights each fire indicates what order the laser travels.
	+ These can be extinguished with an explosion, preventing Brimstone lasers from reaching the deactivated Fire Place.
* Dashes off-screen and turns invisible before charging in again, predicting Isaac's movements and attempting to bite down on where Isaac is moving, doing a full heart of damage if the attack connects. It chains this attack a total of 4 times, each time from alternating sides of the room.
	+ The Heretic occasionally does not finish the fourth charge, instead fading away and quickly charging in one final time from the other side of the screen.
* Upon death, the Heretic's fiery eye drops down and sends out lines of fire in the cardinal directions.

## Gallery

* The Heretic in-game.
* The Heretic performing its Brimstone attack.

## Notes

* When not fought as a main boss, such as in a Boss Challenge room or a degraded boss, it will not be preceded by Fanatics and have no first phase.
	+ The Heretic also cannot perform its  attack outside of its regular boss room as there will be no unlit Fire Places.
* The Heretic can be instantly killed with  if it is at 50% health or below.

## Trivia

* The Heretic originates from a Reddit post by NotYourSaggitarius in 2015, as a versus screen mockup. The boss was later incorporated into the Antibirth mod.
* It appears to be a resurrected variation of The Haunt or The Forsaken.
* The only time The Heretic's empty right eye lights up is during its  attack.
* The Exorcists that appear during the beginning of the fight to summon The Heretic are found nowhere else in the Mausoleum, unlike in *Antibirth*, where they were a regularly appearing Monster.
	+ As of Repentance version 4.0.3, the Exorcists exist in the bestiary, but even using a  to kill them will not add them to the bestiary, leaving it currently impossible to complete.
The Scooper

**The Scooper** is an activated item added in *The Binding of Isaac: Repentance*.

## Effects

* Summons  for the current room, which also leaves a trail of red creep.
	+ The Peeper deals 12 contact damage per tick (36 per second) and the creep it trails deals 2 damage per tick (20 per second).
	+ The Peeper can block enemy shots.
	+ All tears shot from the right eye will deal 35% more damage, same as with  affecting the left eye.

## Synergies

* : Spawns white-glowing eyeball wisps on the middle ring. They function the same as normal wisps.
* : Will summon 2 peepers in a bifurcated direction.

## Trivia

* The Scooper originates from the *Antibirth* mod where it acts similarly but doesn't grant a damage to all tears shot from the right eye.
* The pickup quote for The Scooper is the same as the one for .
Tech.5

For all Tech items, check Tech (disambiguation)

**Tech.5** is an unlockable passive item.

## Effects

* Grants an unlimited range piercing laser with random rate of fire that does not replace tears.
* The laser has a 1/6 chance to fire every ~0.07 seconds (4 frames), firing at an average rate of 2.5 times per second.
* The laser occasionally fires with the effect of a random item or trinket, including:

## Notes

* The damage of the laser scales directly with Isaac's damage.
* Unlike  or , Isaac can still fire tears from both eyes in addition to firing the laser.
* The laser can be fired independently from tears by slightly tilting the right analog stick, just like shooting familiars.
* Unlike , Tech.5 Lasers do not have momentum, and fire exclusively in the cardinal directions unless Isaac has an item like ,  or .

## Interactions

* : Creates floating laser balls that will all fire simultaneously when the fire button is released.
* : Tech.5 does not fire. However, it will still fire when playing as  Azazel with his short-ranged Brimstone. Since the laser scales with player damage, this can be a devastating combination.
	+ Tech.5 fires normally while Brimstone laser is charging.
* : Tear delay down as expected, but no benefit from the splash effect.
	+ Releases a 4-way spread of tears whenever the laser hits a wall or an enemy.
* : Only affects the laser's color.
	+ **Eye of the Occult** + /: The Tech.5 laser also automatically fires at the crosshair.
* : Laser only fires from Isaac.
* Lilith: No effect, as Lilith is inherently Blindfolded.
	+ Lilith fires the Tech.5 laser from her forehead as expected, though the costume doesn't appear.
* : Laser is fired in the same direction that the controlled tear is moving and the laser becomes spectral.
* : Laser explodes and poisons enemies on contact.
* : Laser will bounce in angle depending on the obstacle hit.
* : No effect.
* : Isaac can still fire the laser as normal while using the urn.

## Unlockable Achievements

* Technology Zero - Pick up any 2 technology items in a single run ( Any 2 items that have the 'tech' item tag).
The Polaroid

### Collection Grid

*(page 4, column 2, row 3)**(page 3, column 2, row 5)**(page 3, column 3, row 5)*

### Unlock Method

 Defeat Isaac 5 times

**The Polaroid** is an unlockable passive item.

## Effects

* If the character has half a red heart or no red hearts after taking damage, it triggers the  effect, creating a shield that nullifies all types of damage for 5 seconds.
* Allows entrance into Chest after beating Isaac in the Cathedral by touching the chest.
* Opens  A Strange Door in Depths II and its variants that leads to Mausoleum/Gehenna II.
	+ Unlike with the Chest entrance, The Polaroid gets consumed by the door and vanishes from Isaac's inventory.

## Notes

* This item is a guaranteed drop from Mom, if unlocked. Will drop alongside , provided they are both unlocked. However, they are mutually exclusive: Once one of them is picked up, the other one will disappear.
	+ With the use of either a teleportation item and 5 pip Dice Room, a , or , both the Polaroid and the Negative or multiple copies of the Polaroid or Negative can be obtained.
* The Polaroid always triggers when taking damage as characters who lack Red Heart containers, such as  ??? and  Tainted ???  Dark Judas and  Tainted Judas,  The Forgotten (only as the soul),  Tainted Forgotten ,  Tainted Bethany or any other character who has chosen to trade away their heart containers in deals with the Devil, Black Markets, or the . It will also trigger if the character has only half of a red heart left.
* Since  The Lost and  Tainted Lost don’t have health, The Polaroid will never trigger.
* The Polaroid will be the leftmost item after defeating Mom, in case Curse of the Blind is active.
* It is possible to obtain two Polaroids by obtaining one as an  Eden starting item.
* Obtaining multiple copies of The Polaroid does not cause its effect to stack.
* As with all items crucial to story progress ( and ,  and , , and ), this item has protection from full-run rerolls. It does not, however, share the immunity  has to D6-type rerolls and .

## Trivia

* In the original *The Binding of Isaac* flash game, **The Polaroid** that Mom would drop in addition to a regular collectible from the boss pool. When it was originally implemented, it was only available in the normal Trinket drop pool and was implemented secretively. Players were frustrated, so, with an update, Edmund made it so it would also only drop if the player took no red heart damage against Mom, similar to the conditions for the Devil Room to open its path. Since players would not always receive the Polaroid and might switch it out with another trinket, Edmund wanted to make the discovery of Chest (and its at-the-time new ending) something special.
* As soon as The Polaroid or  become available, they will drop in place of the regular Boss Room item Mom would otherwise provide, essentially providing a difficulty increase for Womb and beyond after either has been unlocked.
	+ They can, however, be re-rolled (or converted into stat increases with ) at the cost of closing off access to Chapter 6.
The Rainmaker

**The Rainmaker** is a boss added in *The Binding of Isaac: Repentance* that can appear in Downpour.

## Behavior

The Rainmaker floats slowly towards Isaac and performs the following attacks:

* Creates two horizontal lines of 6 projectiles each on both sides of himself, then fires them towards Isaac at intervals starting from the far ends towards the center.
* Creates a ring of 12 projectiles around himself, then fires them towards Isaac in short staggered intervals starting from 2 opposite ends of the ring.
* Summons a large water projectile overhead, then pops it, unleashing a burst of projectiles in random directions.
* Twirls around, following Isaac's movements while summoning projectiles around himself which hover briefly before being fired towards Isaac.
	+ At the end of this attack, the Rainmaker releases 8 projectiles in a radial burst.

The Rainmaker deals a whole heart of contact damage.

## Gallery

* The Rainmaker in-game.
* Concept art for The Rainmaker.
* The Rainmaker's old splash art in *Antibirth*.

## Trivia

* The Rainmaker's name is a reference to the traditional ritual of rainmaking which may involve "Rain Dances".
* The Rainmaker was originally going to be omitted from Repentance, according to a Tweet from Edmund Mcmillen.
	+ This tweet also confirms that the Rainmaker is male, as it states that he is apparently gay. Whether or not the Rainmaker is truly gay has yet to be confirmed.
* Defeating the Rainmaker stops the rain in the current room.
* The Rainmaker can be immediately killed with  if he is at 50% health or below.
Telepathy for Dummies

**Telepathy for Dummies** is an activated item.

## Effects

* Grants the following effects for the current room:
	+ Homing tears.
	+ +3 range.
* This item belongs to the  set. Collecting three items from this set will transform Isaac into Bookworm.

## Notes

* For any item interactions, check the corresponding sections on 's page.
* The range increase does not stack with repeated uses.
* In Greed Mode, the effect will stay throughout multiple waves as Isaac does not leave the room.

## Synergies

* : Spawns purple wisps in the middle ring. These wisps fire homing tears.

## Unlockable Achievements

* Baby-Bender - Use  or  while already having homing tears.

## Trivia

* Telepathy for Dummies is a reference to the *For Dummies* series of reference books, targeted towards beginners using non-intimidating instructions.

## Gallery

* 3DS The icon of Telepathy for Dummies as seen on the lower 3DS screen.
Tooth and Nail

**Tooth and Nail** is a passive item added in *The Binding of Isaac: Repentance*.

## Effects

* Every 6 seconds, Isaac turns to stone and sprouts spikes for 1 second. While Isaac is in this state, he is immune to damage and deals 40 contact damage.
	+ Isaac flashes white three times before turning to stone on the fourth flash. The first three flashes are accompanied by a "ticking" sound, the final one with the spike extension sound of a mimic chest.
	+ Unlike , Isaac can still move and shoot tears.

## Notes

* Blood Donation Machines and Devil Beggars will still deal damage while Tooth and Nail is active.
* With proper timing, Curse Rooms can be both entered and exited without taking damage.
* When invincible, Spiked Chests/ Mimic Chests can be opened without taking damage.
* When under the effects of the Paralysis pill Isaac cannot change into a statue.

## Synergies

* Contact damage items work great with Tooth and Nail, such as  /  /  for extra damage,  for Black Heart generation,  for coin generation etc.
	+ also makes the stone turn a yellowish golden while active. Purely visual, but can help remind the player that they have both items.
* : As Isaac is invincible 1/6th of the time, with some luck, Tooth and Nail may save him from the falling sword.
* : Allows usage without taking damage during invincibility.
* The Lost can use this item to prevent additional damage from occurring after losing the  (for example, exiting a Curse Room after being hit), and it does not use up the Holy Mantle's 1-hit protection if it has not been lost.
Trinity Shield

**Trinity Shield** is a passive item.

## Effects

* Isaac uses a shield to block shots.
* The shield stays in the same direction until Isaac fires in another direction.

## Notes

* The shield can block diagonally by holding down 2 arrow keys at once.
	+ Tears will be fired vertically while the shield is at an angle.
* The shield can't block beams or explosions.
* The shield can be held in any direction if you're using a joystick.
* Many items that change the color of Isaac's tears will also change the color of the shield; this effect is purely cosmetic.
* When using Tainted Forgotten, the shield goes on the bone pile and not the soul.

## Synergies

* : The shield will now face the crosshair instead of facing just four cardinal directions.

## Interactions

* : No effect.
* : Trinity shield briefly stays fixed in place during the start of the effect.
* : While using this item, the shield stays in place. It returns when the effect ends.

## Trivia

* The item is a reference to the Shield of the Trinity.
* This item is used in  I RULE! (challenge #26) and  Isaac's Awakening (challenge #39).
* Although this item is normally only available in the Angel Room, it can be found as one of the Nintendo-themed Treasure Room items in the 6th of December's Daily Run, which is an homage to the late CEO of Nintendo, Satoru Iwata.
The Hollow

Double Trouble

Degraded Boss

**The Hollow** is a boss that can appear in the Catacombs.

It has  22 HP /  26 HP per segment.

## Behavior

The number of individual The Hollow bodies that can spawn each fight can vary from 1-4. The most common encounter with The Hollow is with 2 bodies.

* Flies around the room diagonally, bouncing off of walls.
	+ The Hollow appears to travel faster when moving at vertical angles compared to horizontal.
	+ The Hollow can change direction if it collides with Isaac.
* Occasionally spawns poop while moving.
* The Hollow's segments can be split into smaller copies of the boss as long as the new Hollow segments are longer than 2 pieces.

There is a chance that a Grub can spawn alongside a shorter Hollow (basically replacing a second Hollow).

## Champion Versions

**Black**: 15% larger, has slower movement and 25% more HP (32.5). Each segment that isn't the head spawns a Boom Fly when killed. Does not spawn any poop.
The head will spawn a Boom Fly only if killed immediately after spawning.
**Yellow**: 15% larger and has 25% more HP (32.5) but retains the same movement speed. Each segment that isn't the head will drop a Penny on death.
The head will drop a penny only if killed immediately after spawning.
**Green**: Chance for each segment that isn't the head to spawn a Charger on death. Occasionally stops movement to shoot 3 bullets at wherever it is facing.
The head will spawn a Charger only if killed immediately after spawning.
## Gallery

* The Hollow in-game.
* The Black Champion Hollow.
* The Yellow Champion Hollow.
* The Green Champion Hollow.
* The Hollow as one of  Delirium's forms.
* Sketches for The Hollow and other bosses for the original Binding of Isaac's Wrath of the Lamb DLC.

## Notes

* Poop spawned by The Hollow will never drop pickups, even when in possession of .
	+ Poops spawned by The Hollow have an incredibly low chance to spawn pickups. This chance is not affected by Petrified Poop.
	+ Leaving the room and returning will make the poop generate pickups normally.
* Piercing tears make fighting The Hollow much easier, as each tear can damage multiple segments.
	+ Piercing shots no longer damage segmented enemies multiple times per attack.

## Trivia

* The Hollow was added in the *Wrath of the Lamb* DLC for the original *The Binding of Isaac*.
* It is the posthumous version of Larry Jr.
* The definition of hollow is empty on the inside or surface, which could explain the boss's paleness and complexion.
* The Hollow is the only boss that has three Champion versions.
	+ In the V1.7.8 update, The Hollow's yellow Champion version was given a unique sprite that looks similar to  Ultra Greedier.
* The Hollow is the only regular boss that can be spawned by Mega Satan between thresholds.
* Despite Larry Jr. receiving new body sprites in *Repentance*, and despite The Hollow's body sprites simply being recolors of Larry Jr.'s sprites, The Hollow's body sprites are unchanged in Repentance.
V1.7.7a

## Documented Changes

### Localization

* Fixed some achievements being rendered incorrectly when the language is set to Russian

### Modding Changes

* Added a placeholder collection sprite for modded items that do not provide one
* Fixed  wisps not being rendered properly for modded items
* Fixed `costumeSuffix` attribute not working as intended when assigned to Isaac
* `goto` command now accepts `default` as a room type when trying to warp to a special room
Wrath

Degraded Mini-Boss

**Wrath** is a mini-boss based on one of the Seven Deadly Sins.

## Behavior

* Wrath wanders around the room randomly, occasionally standing still.
* Throws a Bomb towards Isaac if he is in line of sight and then attempts to run away from the bomb.
	+ Wrath takes only 20 damage (as opposed to the usual  60/ 100) from his own bombs.

Wrath deals a full heart of damage (both bombs and contact).

## Unlockable Achievements

* The Book of Sin - Defeat all 7 Deadly Sins.

## Notes

* Occasionally, 2 regular Wraths appear in a Mini-Boss Room and the boss message will display "Isaac vs Super Wrath".
* Isaac's bombs and  missiles deal 200 damage to Wrath regardless of modifiers or damage stat.

## Trivia

* Wrath's behavior, his room layouts (most of the time), and his appearance are references to the *Bomberman* series of games.
* The item  gives Isaac's head a similar appearance to Wrath's.
* The Seven Deadly Sins that these mini-bosses are based upon are, in Christian teachings, a classification of vices from which all others are derived from.
* Wrath is a personification of one of the 7 Deadly Sins. Wrath is distorted or unregulated anger. It can take the form of short-temperedness, grudges, vindictiveness, or excessive anger. It is believed to lead to violence, blasphemy, hatred, and injurious speech.
* Wrath's absence of eyes could be a reference to the expression "blind rage".
V1.06.0051

## Undocumented changes

### Additions

* Added 20 missing Afterbirth items and 11 missing trinkets.

### Changes

* Increased  charge 2 → 4.
* Increased  charge 1 → 3.
* now affects soul hearts.
* Decreased Azazel's damage and charge rate.
* Restock Machines now blow up if bombed repeatedly.
* Removed blood donation machines from Greed mode.
* Using  in Greed mode now always spawn a Devil beggar.

### Fixes

* Fixed the  Blue Womb achievement not unlocking.
* Defeating Hush now correctly plays ending 17.
Treasure Room

with

A **Treasure Room**, or Item Room, is a room that contains items from the Treasure Room item pool. They appear in chapters 1, 2, and 3 (and 4 if Isaac holds , 5 with  or ). Two also appear in the ???. A Treasure Room can be identified by the gold edges of the door. When the current floor is under the effect of Curse of the Labyrinth, making a floor an XL floor, there will be two treasure rooms on the floor instead of one.

Treasure rooms on the first floor of any run do not require a key to open, even under the effect of Curse of the Labyrinth. Treasure Rooms never border more than a single regular room, but there may be a Secret Room adjacent to it.

 In Greed Mode, Treasure Rooms appear in Chapters 1, 2, 3, 4, and 5, and are always locked. Silver Treasure Rooms appear next to these rooms, they give items from the Boss Room item pool but are always unlocked.

## Variations

* There is a rare chance that a treasure room might contain two items, only one of which can be taken.
	+ will increase the chance for a treasure room to become a double treasure room, and  will cause every treasure room to become a double treasure room.
	+ Treasure rooms in Downpour, Dross, Mines, Ashpit, Mausoleum, Gehenna, and Corpse will always contain two items. One item will be hidden with a Curse of the Blind effect.
* Treasure rooms may contain a Shop Restock Machine, allowing Isaac to re-roll offered items if he has coins or bombs.
* There is a chance that 2-3 Greed Gapers may appear in the room.
* There is a chance that 2 Bulbs may appear in the room.
* Treasure rooms can also rarely contain two items that can both be taken or Poop, a trinket, and a couple of pickups instead of an item, though these are very rare occurrences.
	+ If a Treasure room on the alt path spawns with an extra item, it will have three items. One can be taken freely while the other two are still a choice. There is no visual indication which is which, although one of the choice items is still hidden.
	+ On the alternate path, the rare, bad treasure room layouts without an item may contain a Beggar, a Key Master, a Bomb Bum, various pickups, or chests, depending on the current stage.

## Layouts

### Standard

* (Very Rare)
* (Rare)
Worm Friend

**Worm Friend** is an unlockable passive item added in *The Binding of Isaac: Repentance*.

## Effects

* Gives Isaac a Nerve Ending familiar that burrows out of the ground to grab enemies for 4 seconds. Grabbed enemies take damage over time, are slowed, and are unable to move.
	+ Worm Friend deals 4 damage per tick (8 per second), for a total of 32 damage per grab.
	+ Worm Friend can target and restrain bosses in addition to normal enemies, even including endgame bosses such as Ultra Greed.

## Notes

* Enemies can avoid/escape being grabbed if they move fast enough, jump, or teleport.
* Worm friend must wait 5 seconds after losing/killing/releasing its target before it can attack another enemy.
* When playing as  Tainted Lazarus /  Dead Tainted Lazarus, entering a room with Worm Friend active and then using  to swap to the other character will keep Worm Friend active for the remainder of the room.
* When grabbing The Beast, the Beast is still able to dive down and appear on the other side, though no animation will be played for either diving down or up. This can be dangerous as there will be no warning of the Beast switching sides.
V1.06

*This was the first initial version of the Afterbirth DLC expansion. For an overview on content added in Afterbirth, please see this page: The Binding of Isaac: Afterbirth*

## Undocumented changes

### Fixes

* Fixed the bug that prevents an item pedestal from disappearing if the player teleports away before the "poof" animation is completed. (It is no longer possible to steal multiple items from the Boss Rush and so forth.)

## New bugs

* When importing a save from Rebirth to Afterbirth, some post-it note completion marks would not properly transfer over.
Raw Liver

**Raw Liver** is a passive item.

## Effect

* Gives Isaac 2 Red Heart containers and fully restores Isaac's health.

## Interactions

* Tainted Bethany: Grants 12 blood charges.

## Trivia

* This item is used in Cursed! (challenge #10).
* Edmund McMillen mentions Raw Liver on his first post-Repentance Lore Stream, and relates two things without directly stating which one (if any, or if both) inspired the Raw Liver item.
	+ The first thing McMillen relates is the phrase *"I ate his liver with some fava beans and a nice Chianti",* which is a quote from the character of Hannibal Lecter, a serial killing cannibal in the 1991 film *The Silence of The Lambs*.
	+ The second statement is a personal anecdote from McMillen about abuse he suffered at the hands of his step-father while growing up at the age of six. According to Edmund, he was offered raw chicken's liver to eat by his step-father, and upon accepting and finding the taste to be unpleasant, was still forced to eat as much as he could before being taken to the bathroom and told under duress to vomit up the liver.
* Raw Liver’s sprites can be seen as part of  despite Raw Liver not being a food item affected by Binge Eater.
Taurus

### Collection Grid

*(page 3, column 4, row 10)**(page 3, column 14, row 3)**(page 3, column 15, row 3)*

**Taurus** is a passive item.

## Effects

* -0.3 speed.
	+ -0.3 maximum speed.
* When in a room with enemies, Isaac gradually gains speed at a rate of +0.065 per tick.
	+ This speed boost will be able to go past the lowered maximum.
* Once Isaac's speed reaches 2.0, he gains the  effect for 5 seconds, becoming invulnerable, and loses the speed bonus from Taurus afterward.

## Notes

* Isaac slowly gains a red tint that becomes more intense as he gains speed.
* The speed boost and invulnerability effect activate only once per room.
* The higher Isaac's base speed, the quicker the effect activates. It can activate immediately upon entering a room if his base speed is already 2.0 .
* The item doesn't trigger in rooms that don't have enemies when first entered. This includes Challenge Rooms, Sacrifice Rooms when spawning Uriel or Gabriel, and the Boss Rush room.
	+ Taurus will trigger each time the button is pressed to start a new Greed or Greedier wave. Since the invincibility allows pressing the button to stop waves for free, it can be used repeatedly without leaving the arena.
* The item doesn't trigger in trap rooms which only contain Poky enemies.
* If Isaac gets teleported out of the room by any source, the  effect won't trigger if the room is re-entered.
* Bombs can be placed during the charge.
* When playing as  Jacob and Esau, the speed changes apply for both, but only the character that is holding Taurus gains invincibility.

## Synergies

* : While Isaac is invincible, Blood Rights can be freely used without taking damage. This trivializes many rooms, and since Taurus can activate every room, this combination can be game-changing, especially if Isaac has high base speed.
	+ Isaac will still take damage from Blood Rights during the invincibility.
* : Isaac's speed will still increase while he is invincible from Gnawed Leaf, allowing Taurus to activate with only a very small period of vulnerability when first entering a room.
* : Isaac keeps the maximum speed boost after reaching it once.
* /: Isaac will poison enemies in addition to dealing damage to them on contact.
* : Isaac will be able to move around unnoticed, letting Taurus charge up.

## Interactions

* : Isaac's damage and range increases as speed increases. However, if Isaac's base speed is not high enough, the invincibility never activates.
	+ Damage, Range, and Tear delay increase as speed increases. Speed increases much slower than normal.
* : Isaac cannot control the tear while invincible, but any enemies touching it will still take damage from it.
Unicorn Stump

### Collection Grid

*(page 3, column 3, row 10)**(page 3, column 13, row 3)**(page 3, column 14, row 3)*

**Unicorn Stump** is an activated item.

## Effects

* Gives invulnerability and +0.28 speed for six seconds, but removes the ability to shoot tears while the effect is active.

## Notes

* The invulnerability effect negates all forms of damage, including health loss from Blood Donation Machines and Devil Beggars.
* Does not prevent Red Heart container loss from Health Down pills or Devil Room deals.
* The item is similar to , with faster recharge time at the cost of being unable to damage enemies while under its effects.
* If another active item is picked up while in the invulnerability state granted by Unicorn Stump, Isaac will return to normal immediately, becoming able to shoot tears and take damage.

## Synergies

* : With some damage source while this item is active, it can be permanently invulnerable inside the room while you have enemies.
* : The fly can still be controlled while invincible.
* : Spawns an orbital rainbow wisp on the middle ring. Wisps do not deal contact damage and will not take contact damage. When Isaac is invulnerable, wisps become much more vibrant and deal contact damage equal to 2x Isaac's damage -5. If Isaac has less than 2.5 damage, the wisps will deal no damage even if Unicorn Stump is active.
* : Doubles the duration of invulnerability.
* does contact damage in the same direction it was being held at the time of using the Unicorn Stump, giving a massive amount of free damage by ramming into an enemy.
	+ If you have the Yes Mother? Transformation, you can basically do the same thing using this item.
* On contact items (, , etc.): Freely usable in basically every room.
	+ Orbital Familiars (, , etc.): The orbital can be used freely in every single room, making it a great alternative source of damage.

## Interactions

* : The tear stays in place while Isaac is invincible; although Isaac cannot move the tear, it will continue to damage enemies during his invincibility. This is very useful for stationary enemies.
* : Isaac's tears will still fire, but he will be unable to move the crosshair while invincible.

## Gallery

* 3DS The icon of Unicorn Stump as seen on the lower 3DS screen
Vengeful Spirit

**Vengeful Spirit** is an unlockable passive item added in *The Binding of Isaac: Repentance*.

## Effects

* When Isaac takes damage, spawns a red wisp that fires spectral tears and deals contact damage to enemies (but does not block projectiles). These red wisps last for the entire floor, and Isaac can have up to 6 red wisps at a time.
	+ Wisps deal `3 + 0.1 * (current_floor - 1)` damage per tear, and fire tears once per second.
	+ Wisps deal contact damage equal to 0.5x Isaacs's damage per tick (15 ticks per second = 7.5x Isaac's damage).

## Notes

* The wisps share the first layer of  wisps so combined with them, you can't have more than 8.

## Synergies

* : Doubles the wisps' size, on-hit and contact damage.
* : For each half heart of damage taken at the start of the room, a wisp is spawned.

## Trivia

* In mythology and folklore, a vengeful spirit is said to be the spirit of a dead person who returns from the afterlife to seek revenge for a cruel, unnatural or unjust death or an improper burial.
V1.9.4 (Beta)

The online beta received a patch on December 14th, 2023, announced on Twitter.

## Documented Changes

* Raised the amount of health players get when getting revived
* Fixed more crashes on startup due to mods being installed
* Fixed softlock in online play when a player gets the controller disconnected popup
* Fix for active item on boss pedestal
* Players drop quest items when disconnecting
* Fixed occasional crash when pressing function keys on keyboard
V1.06.0193

### Changes

* Big Horn no longer has damage scaling (armor). If you stun him with a bomb, he still takes 20% more damage.
* now correctly contributes towards the Bookworm transformation.
* is now a 2 charge item (up from 1 charge in the previous patch).
* It is no longer possible for  to invoke .
* The new Afterbirth+ shop was changed to make it symmetrical.
* HP changes:
	+ Rag Man 250 → 200.
	+ Rag Mega 110 → 120.
	+ Sisters Vis 500 → 350.
* Caves room #6 got completely nerfed.

### Fixes

* Fixed the bug with  and  synergy where it wouldn't properly explode on enemies.
* Fixed the bug where if you saved and quit with , orbitals would not return to their proper position.
* Fixed the bug where if you save, quit, and continue in the middle of clearing a Challenge Room, the game would crash and/or the save file would get corrupted.
* Fixed the bug where on the Delirium fight, Gate would always spawn outside of the room.
* Fixed the bug with two s and an I AM ERROR room with purchasable items. (The second  used to have no effect.) This was mentioned by Tyrone as fixed in the previous patch, but it was only actually fixed in this one.
* Fixed the difficulty on some Cathedral and Sheol rooms that were previously impossible to be generated by the floor generation algorithm. This was mentioned by Tyrone as fixed in the previous patch, but it was only actually fixed in this one.
* Fixed the bug where  would not work with health up items.
* Fixed the bug where  would erroneously give you the  effect forever.
* Fixed the bug where  would erroneously keep the horns and speed up/down from  forever.
* Fixed the bug where  and  synergy lead to a softlock situations with invincible enemies such as a Constant Stone Shooter.
* Fixed the bug with several libraries where they would never be generated by the floor generation algorithm. This was mentioned by Tyrone as fixed in the previous patch, but it was only actually fixed in this one.
* Fixed the bug with the new Afterbirth+ shop room where it would never be generated by the floor generation algorithm. This was mentioned by Tyrone as fixed in the previous patch, but it was only actually fixed in this one.

## New bugs

* Taking two s would allow you to purchase items from a Devil Room and Black Market for free.
* Most Linux versions of the game crash on startup.
Virgo

### Collection Grid

*(page 3, column 8, row 10)**(page 3, column 18, row 3)**(page 3, column 19, row 3)*

**Virgo** is a passive item.

## Effects

* Grants a chance to trigger the  effect upon taking damage, creating a shield that nullifies all types of damage for 10 seconds.
	+ The activation chance depends on the luck stat and goes up to 100% with 10 Luck.
* Converts all negative pills into positive ones, but does not identify them.

## Notes

* The shield negates health loss from Blood Donation Machines and Devil Beggars.
* Does not prevent Red Heart container loss from Devil Room deals.
* Bad pills already obtained/dropped will be converted to their "good" counterpart.
* As bad pills will turn into good pills, it is possible for two different colored pills to have the same effect.

## Synergies

* , : Can trigger at the same time as Celtic Cross or The Polaroid, cumulating to up to 22 seconds of shield.

## Interactions

* : Pills can be both good and bad again. Taking bad pills still applies the benefits from False PHD.
Yum Heart

**Yum Heart** is an activated item.

## Effects

* Restores one full Red Heart.
* When playing in co-op, all other players will be healed for a Half Red Heart.

## Notes

* Magdalene /   Tainted Magdalene starts with this item by default.
* This item can drop from Super Lust.

## Synergies

* : Creates Red Heart wisps in the middle ring. Enemies killed by the wisps' tears have a 20% chance to drop a full Red Heart.
* : Doubles the amount Yum Heart heals.
* Jacob and Esau: Regardless of who holds this item, each heal half a Red Heart.
* Keeper /   Tainted Keeper: Heals one Coin Hearts; no blue fly is generated.
* +  / : Allows infinite Red Heart regeneration.
* Tainted Magdalene: Heals two Red Hearts upon each usage.
	+ Tainted Magdalene + : Allows infinite usage and infinite invincibility frames.

## Interactions

* : No effect; will still only replenish one full Red Heart.

## Trivia

* This item is used in The Tank (challenge #5) and Cursed! (challenge #10).
* Yum Heart is the only item that more than 1 character starts with (excluding  Eden).
* is a Rotten Heart variation of Yum Heart.
* This item along with any form of healing other than the starting item has no effect in  Have a Heart (challenge #25)

## Gallery

* 3DS The icon of Yum Heart as seen on the lower 3DS screen.
V1.06.0188

## Documented changes

These changes are only documented via Tyrone's personal twitter.

### Fixes

* Fixed crash on custom challenge menu.
* Fixed crash when stepping on certain pressure plates.
* Fixed issue where trophy sometimes wouldn't work at end of daily challenges.
* Fixed issues causing certain enemy types to not be added to the bestiary.

## Undocumented changes

### Changes

* Stoneys now get tired after chasing you for a while.
* Made Krampus' second attack 8 frames longer.
V1.06.0059

## Undocumented changes

### Additions

* Added 5 new Greed machine unlocks.
* Added  item.
* Added  trinket.
* Added pop-up text whenever Isaac activates a new transformation.

### Changes

* Decreased HP:
	+ Ultra Greed's blank coin 100 → 50.
	+ Ultra Greed's key coin 100 → 60.
	+ Ultra Greed's bomb coin 100 → 50.
	+ Ultra Greed's heart coin 100 → 40.
* Increased Azazel's damage and decreased charge time.
* lasers now have a chance to rotate.
* Increased Isaac's speed in The Guardian and SPEED! challenges.
* Decreased intensity of the Retro Vision pill effect.
* now resets the game's timer when used.

### Fixes

* Fixed Lazarus and Lilith's visuals being overridden.
Ultra Greed Coin

**Ultra Greed Coins** are enemies exclusively spawned by Ultra Greed during some of his attacks.

### Stage HP

 50
 0

### Found In

**Spinner Coins** will spin around the room. Unlike the other coins, these deal contact damage, but won't do anything if they are not destroyed in time. They also last longer.

### Stage HP

 60
 0

### Found In

**Key Coins** open the golden doors around Ultra Greed's boss room if not destroyed, which spawn hordes of Greed Gapers.

### Stage HP

 50
 0

### Found In

**Bomb Coins** explode with a large radius if not destroyed, but a single explosion can deal 40 damage to Ultra Greed. Bomb Coins spawned by Ultra Greedier can drop Coins.

### Stage HP

 40
 0

### Found In

**Heart Coins** heal Ultra Greed for 13.125 HP each if not destroyed.
The Binding of Isaac: Repentance/Additions

## Playable Characters

There is also a "tainted character" for each existing playable character (including  Bethany and  Jacob and Esau) which can be unlocked by finding a hidden room on the new stage "Home". Because of that, the total number of playable characters in the game is 34.

## Pickups

### Pills

#### Gold Pills

**Gold Pills** (or Golden Pills) can be used multiple times and grant a random pill effect, even from pills not in the pill pool. Every time a Golden Pill is used it has a chance of being consumed. Its Horse Pill variant will make it give only Horse Pill Effects.

#### Horse Pills

**Horse Pills** appear as larger versions of the standard pills with a more powerful effect, and their effects and appearances are similarly randomly chosen. All items that work with pills work identically with horse pills. A horse pill with a given effect has the same color as the normal pill does. Unlocked by:  Defeat Mega Satan as  Tainted Eve

### Sacks

As well, Sacks can spawn in shops for 7 coins.

## Monsters

### Champions

Brown
Rainbow

## Audio

* The Music is once again composed by Ridiculon.
	+ Whilst not being in the official release, a fully updated Antibirth soundtrack may be released by Mudeth as a mod.

## Environment

### Obstacles

* **Rocks**
	+ Spiked Rocks
	+ Marked Skulls
	+ Buckets
	+ Fool's Gold Rocks

* **Poops**
	+ Giant Poop
	+ Charming Poop

* **Fire Places**
	+ White Fire Place

* **Blocks**
	+ Pillars

* **Buttons**
	+ Red Buttons
	+ Yellow Buttons
	+ Brown Buttons

* **Teleporters**

### Rooms

* Planetariums
* Red Treasure Rooms
* Ultra Secret Rooms
* Red Rooms
* Exit Rooms
Ultra Death

**Ultra Death** is a boss added in *The Binding of Isaac: Repentance* and is the last of the Ultra Harbingers fought before The Beast in Home.

## Behavior

Unlike the other Ultra Harbingers, Ultra Death has only one phase and has three attacks which he cycles through indefinitely:

* Summons a rectangle of 11 Ultra Death Scythes which close in towards Ultra Death's position and continue in the same direction until disappearing off screen. Ultra Death uses this attack 3 times in a succession.
* Flies off screen, then reappears travelling slowly while summoning waves of Ultra Death Heads which move up and down across the screen in the same direction. At the end of the attack, the skulls freeze in place and Ultra Death summons three harmless scythes which spin outwards, destroying the skulls.
* Immediately after the previous attack, the screen darkens and Ultra Death disappears into the darkness. Ultra Death appears next to Isaac and swings his Scythe before disappearing again, darkening the screen with each attack. This attack is repeated 4 times, afterwards, the screen returns to normal and Ultra Death reappears.
	+ His position during this attack can be indicated by a faint glowing red eye.

## Gallery

* Ultra Death in-game.
* Ultra Death during the darkness attack.
* Ultra Death death portrait.

## Trivia

* Ultra Death, like the other Ultra Harbingers is an upgraded version of his regular counterpart, Death.
	+ Unlike the others, he has the greatest variation in behavior from regular Death- notably the lack of a second phase.
* The violin heard in the section of Revelations 13:1 that plays during Ultra Death's fight is performed by Carla Kilhstedt, the voice actor for Mom.
* Ultra Death can be seen facepalming in the background after killing Ultra War.
* The wave of Ultra Death Heads loosely resembles one of Conquest's attack.
	+ This could be compensation for Conquest's lack of appearance despite his Harbinger role.
* Ultra Death's glowing eye during the darkness attack could be a reference to the *Terminator* series, as Ultra Death bears some resemblance to the Terminators seen in those movies.
* Ultra Death's glowing eye is actually invisible during the whole fight but active the whole time, and becomes visible when the room is darkened. Using  darkens the arena, making it visible.
* Ultra Death is male.
Vault

**Vaults** are special rooms that contain a variety of pickups/chests (or occasional lack thereof). Vaults require two keys to be opened, unlike most other special rooms. For a Vault to spawn, the following has to happen.

* An Arcade has to be able to spawn that floor. This requires that both:
	+ Isaac is holding five or more pennies
	+ The floor Isaac is going to is the second floor of a chapter
* Once the game determines an Arcade will spawn, a Vault has a 1/10 chance to replace that Arcade. This chance increases to 4/10 if Isaac has two or more keys.
* The floor Isaac is going to is the second floor of a chapter or the first floor of an alternate chapter ( Downpour,  Dross,  Mines,  Ashpit,  Mausoleum,  Gehenna and  Corpse)
* If Isaac has 2 or more keys, a Vault has a 1/3 chance to spawn. This chance increases to 4/10 if Isaac has five or more pennies, and will replace the Arcade.

## Contents

The following room maps were made using Basement Renovator for cleaner viewing. Note that any items that are generated/rerolled in this room will be from the Golden Chest item pool.

## Notes

* The texture Vaults use for their rooms are the same as Chest.
* , , and  open Vaults in one use, despite the fact that they require two keys.
* Many vaults contain locked chests or key blocks, further increasing the required number of keys to fully utilize them. Make sure you have enough keys if you choose to enter one.
* Due to how Vault generation works, a floor cannot have both an Arcade and Vault on it; they are mutually exclusive.
	+ If an Arcade is especially valuable to your run, it may be worth limiting your keys to one going into a floor with an Arcade on it to reduce the chances of it becoming a vault.
White Pony

**White Pony** is an unlockable activated item.

## Effects

* Passively grants flight.
* If Isaac's speed is less than 1.5, passively increases his speed to 1.5.
* Upon use, Isaac charges in the direction the pony is facing, giving invincibility during the charge and damaging enemies while also creating beams of light.
	+ The beams of light are spaced randomly around the room and deal the same damage as those created by .
	+ The beams of light deal 4 times Isaac's damage, plus a flat 10 damage and trail behind Isaac as he charges.
	+ The dash deals 40 flat contact damage to enemies.
	+ The dash deals 4 times Isaac's damage, plus a flat 28 damage.
	+ Isaac can dash through doors, which means damage from Curse Room doors can be avoided.
		- Although the dash can persist between rooms, the beams of light only occur in the room it is used in.
* While not time-based, invincibility from White Pony is otherwise identical to damage immunity granted by the invulnerability effect.

## Notes

* White Pony is only obtainable as a boss drop from Conquest, as a starting item for  Eden, by using  on , or by using .
	+ White Pony cannot be crafted with the .
* If White Pony is replaced by another activated item, Isaac will lose any passive benefits that it had granted.

## Synergies

* : Creates white pony wisps on the middle ring that fire white tears with a 10% chance to fire  tears. The beams of light the wisps' tears make deal extra damage to enemies in a small area equal to 3x the wisps' tear damage.
* : Lowers the dash cooldown to approximately 1 second.

## Gallery

* 3DS The icon of White Pony as seen on the lower 3DS screen.

## Trivia

* This item is a reference to the White Horse, one of the *Four Horsemen of the Apocalypse* described in the last book of the Bible. This is reinforced by the fact that the item is dropped by Conquest, which is a further reference to that passage of Christian theology.
* This item is also possibly a reference to the Deftones album, *White Pony*.
* The item appears to be a stick horse.
Used Diaper

**Used Diaper** is a trinket added in *The Binding of Isaac: Afterbirth †*.

## Effects

* Grants the  effect with a 15% chance. This chance is seeded into each room and isn't affected by Luck.
	+ For a list of what flies are affected and how, see the  page.
* Dropping the trinket will not revert Flies, but will undo the other benefits.
V1.06.J99

*This was the first initial version of Booster Pack #3 for the Afterbirth † DLC expansion. For an overview on content added in Booster Pack #3, please see this page: Booster Packs*

## Undocumented changes

### New items

* (526), which is based on this Steam Workshop item by Scayze and Askhait.
* (527), which is based on this Steam Workshop item by Jean-Alphonse.
* (528), which is based on this Steam Workshop item by electoon and Erfly.
* (529), which is based on this Steam Workshop item by Scayze and Ashkait.

### New trinkets

* (124), which is based on this Steam Workshop trinket by Strawrat and CupertinoEffect.

### Additions

* Added 40 new Eden hairstyles, which is based off of this Steam workshop mod by This Guy.
* The Delirious achievement now has an image on the achievement list.
* Mom's dressing table now has a unique broken sprite upon being destroyed.

### Changes

* The Double Trouble room with 1 Rag Man and 2 Rag Megas (#3732) was changed to have 1 Rag Man and 1 Rag Mega.
* The Locust of Wrath trinket has been renamed to .

### Modding API

* The `FindFreePickupSpawnPosition` function is now seeded.