recursal/Fanatic-Fandom huggingface dataset:
Friend Finder

**Friend Finder** is an unlockable activated item added in *The Binding of Isaac: Repentance*.

## Effects

* On use, spawns a random friendly monster that mimics Isaac's movements and attacks, similar to  Jacob and Esau.
* Friendly monsters can take damage from flames, spikes, and other hazards.

## Notes

* Currently, there are 21 monsters that can be spawned in:
	+ Clotty
	+ Clots
	+ I.Blobs
	+ Grilled Clottys
	+ Vises
	+ Double Vises
	+ Chubbers
	+ Dannys
	+ Coal Boys
	+ Gurgles
	+ Hives
	+ Nests
	+ Holy Mulligans
	+ Drowned Hives
	+ Bonys
	+ Black Bonys
	+ Holy Bonys
	+ Blasters
	+ Doples
	+ Evil Twins
	+ Maw
		- Blasters cannot attack unless Isaac presses the active item button, in which case they fire at the cursor.
		- Gurgles can turn into Splashers, which can be controlled like normal.
		- Double Vis, Holy Mulligans and Drowned Hives seem to be very rare spawns.
		- Vises do not require charging, but they sometimes fire at Co-Op players automatically.
		- Dople and Evil Twin will not fire opposite of Isaac, unlike what they usually do.
* Certain enemies will have a crosshair to show where they are firing, mainly those with stringed attacks. A Black Bony will only keep the crosshair until it fires all three shots, but a Holy Bony will keep its crosshair for as long as fire keys are held.
* Bullets fired from friendly mobs will still visibly blink as if they're an enemy bullet, and will be highlighted if Bullet Visibility is set to High, despite not harming Isaac.

## Synergies

* : Spawns a random wisp.
* : Doubles the amount of random friendly monsters spawned.
* : Doubles the fire rate of spawned monsters, if they fire projectiles.

## Interactions

* Ace Cards: Monsters spawned by Friend Finder are still affected by Ace Cards.
* : Either angry version of Blood Puppy will target friendly enemies as well and can drag them along with it when it charges them. Blood Puppy cannot damage friendly enemies however friendly enemies can damage Blood Puppy despite not targeting it outright.
* : Broken Modem also affects friendly enemies and projectiles created by them.
* : If Friend Finder attempts to spawn an erased monster it will simply fail and waste the charge, instead of choosing a different monster.
* /  /  / : Explosions from ghosts can kill friendly enemies.
* : Each use of Glowing Hourglass that does not move Isaac to a different room than the one he is currently in (such as the starting room of a new floor) will duplicate friendly enemies. (This is possibly a bug)
* : Projectiles shot from charmed monsters will be repelled by the aura.
* : Friendly enemies start with less health if they have 60HP or more.

## Trivia

* There is a hidden multiplayer game mode for Co-op that allows a second player to control enemies and bosses in a way similar to Friend Finder, called Possessor.
Era Walk

"Savor the moment"

**Era Walk** is a special card added in *The Binding of Isaac: Afterbirth †*.

## Effects

* For the current room, enemies are slowed, Isaac's speed is increased by 0.50, and his shot speed is decreased by 1.00.

## Notes

* The card's effect does not stack if it is used multiple times in the same room.
* While the effect is active, Isaac will appear to have , although this is purely cosmetic.

## Trivia

* Era Walk has been added in Booster Pack #1, after the initial release of the DLC.
* Era Walk is based on this Steam Workshop mod by aeiou.
* Era Walk is a reference to the card Time Walk from Magic: The Gathering. The Pickup Quote is a reference to the card Savor the Moment which has a similar effect.
	+ Unlike  and , Era Walk's sprite is based on Time Walk's Vintage Masters reprint art instead of the original art.
Dream Catcher

**Dream Catcher** is a passive item added in *The Binding of Isaac: Repentance*.

## Effects

* During the transition between floors, Isaac's nightmare shows the item that will be found in the Treasure Room and what Boss will be at the end of the floor.
	+ Curse of the Blind items will be revealed, as well as the hidden second item on the alternate floors (Downpour, etc.)
* Grants a Half Soul Heart upon entering a new floor (this includes each floor of the Ascent).

## Notes

* On Curse of the Labyrinth floors, both items and bosses are shown.
* If the floor Isaac is going to has no Treasure Rooms, Dream Catcher will simply show the floor's boss. If there are no Treasure Rooms or bosses on the floor (i.e. in The Shop, Ultra Greed, and Home), the dream will instantly be skipped.
* Dream Catcher cannot show glitched items generated by . Instead, it will just show .
* Dream Catcher will show a poop in the Treasure Room if there are no item pedestals in the room.
* On Corpse II, the boss will appear as a blank space; on the special Mausoleum/Gehenna II floor that leads to Home, it will appear as Mom.
* On The Void, the Dream Catcher will show all the bosses that can be found in the various boss rooms, starting with Delirium.

## Interactions

* : Dream Catcher will show what the Treasure Room will have if Isaac chooses to enter the room without the crown.
* : The soul will receive half a soul heart for every new floor he follows Isaac to, allowing him to survive multiple hits and gather up to a maximum of 12 soul hearts. His health resets when the trinket is dropped.
* + Downpour/Dross, etc.: Dream Catcher will not show the third item if going to the alternate floors.
Eye

### Found In

**Eyes** are immobile and attack by rotating towards Isaac and firing a  laser towards his position. Non-Eye enemies hit by the lasers take 8 damage.

The battle against Mom's Heart/ It Lives begins with an Eye on either side of her.

## Variants

### Stage HP

 20
 0

### Found In

Chance to replace Eyes

**Bloodshot Eyes** behave similarly to Eyes but fires a wider  beam towards Isaac. Non-Eye enemies hit by the beam take 22 damage per tick.

### Notes

* They can spawn in unique Devil Room layouts if Isaac is holding the .

### Stage HP

 20
 5

### Found In

**Holy Eyes** are a unique variety of eye added in *The Binding of Isaac: Repentance*. They are only encountered on Cathedral.

The **Holy Eye** is a stationary enemy, much like other Eyes. Every few seconds, it summons four beams of light (similar to the beams summoned by ) near Isaac's position, with shadows telegraphing where the beams will strike. The first beam strikes where Isaac is, but the others will attempt to predict his movements, striking where Isaac would be if he kept moving in a straight line. Holy Eyes will always attempt to summon beams of light if they take damage and aren't already firing.

## Gallery

* Unused pre-release sprite/placeholder for the Bloodshot Eye found among the Room Editor files.
* Concept art for the Holy Eye.

## Trivia

* When Eyes spawn, they can be briefly seen opening their eyelids before they start turning towards the player.
* In the original Binding of Isaac, Bloodshot Eyes, despite using Brimstone as projectiles, had limited range. This does not apply to Rebirth.
* Eyes may be a reference of Mr. I from Super Mario 64, which is immobile and can rotate, although they shoot pink bubbles from their pupils instead of lasers.
* Afflicting fear to Eyes will cause them to look away from Isaac.
* Holy Eyes, Holy Bonies, and Holy Mulligans originated as cards from the card game **The Binding of Isaac: Four Souls**.
	+ They originally went by the card name "Holy Mom's Eye" as the card name for regular Eyes was "Mom's Eye".
Dark Ball

**Dark Balls** chase Isaac, flying at a moderate pace and take increased knockback from tears. They're most often encountered when spawned by Little Horn,  Big Horn and  Blisters but can be sometimes encountered in some rare rooms in the Caves or Flooded Caves as well as Mausoleum rooms with Bishops. The Dark Balls Big Horn can spawn are larger and can either behave normally or have different behavior where they travel diagonally bouncing off walls.

## Variations

### Found In

Spawned exclusively by Rag Mega and Cultists

**Purple Balls** behave similarly to regular Dark Balls, but are immune to all damage. 3 of them will always spawn orbiting Rag Mega and detach to chase Isaac as the boss's HP drops.  Cultists spawn a variant of Purple Balls that are indestructible but slowly transform into vulnerable Dark Balls.

Purple Balls can be destroyed by any instant kill effects such as  or .

### Stage HP

 50
 0

### Found In

Spawned exclusively by The Visage

**Visage Plasma** are similar to the Dark Balls summoned by Big Horn and slowly float diagonally around the room bouncing off walls. If The Visage's mask is deactivated one will travel towards it to revive the mask. If there are 3 alive at once they can be absorbed by The Visage's heart to heal it and cause it to perform a special attack.

### Stage HP

 200
 0

### Found In

Spawned exclusively by Ultra Pestilence.

**Ultra Pestilence Fly Balls** behave like regular Dark Balls and float towards Isaac dealing contact damage. Each time it takes enough damage it spawns an Ultra Pestilence Fly and can spawn multiple at once if it takes a large singular amount of damage. Upon death it leaves behind another Ultra Pestilence Fly.
Filigree Feather

**Filigree Feather** is an unlockable trinket added in *The Binding of Isaac: Afterbirth † (Booster Pack #2)*.

## Effect

* Angels drop items from the Angel Room item pool instead of key pieces when defeated.

## Notes

* Items are dropped even if both key pieces are already acquired.
* If one key piece was acquired before picking up Filigree Feather, the next time the angel that normally drops the key piece Isaac currently has is defeated, it will drop the other key piece even with Filigree Feather equipped. (E.g. defeating Uriel while holding Key Piece 1 and Filigree Feather will drop Key Piece 2, but defeating Gabriel with the same items will drop an angel item instead.)
* If both Angels are fought at the same time, only one item will be acquired.
	+ Both Angels will drop items if they're fought at the same time.
* Angels rarely found in closets in the Cathedral do not drop items, but ones found in Super Secret Rooms do.
* Angels spawned from Sacrifice Rooms will also drop items.
* The Fallen Angels that spawn during the Mega Satan fight do not drop items.
* The Angels that spawn during the Boss Rush do not drop items.

## Interactions

* Golden Trinket / : No effect.
* Jacob and Esau: Jacob must be the one holding Filigree Feather for the trinket to work properly.

## Gallery

* Filigree Feather's appearance prior to Booster Pack #5.
Death Scythe

**Death Scythes** are enemies spawned by Death that either stay stationary for a few seconds before accelerating toward Isaac or immediately home in on him. They have 50 HP in total but spawn with only 15 HP. They deal 1 full heart of damage. If Death is killed, any Death Scythes he summoned are immediately destroyed.

## Variations

### Stage HP

 100
 0

### Found In

Spawned by Ultra Death.

**Ultra Death Scythes** are enemies spawned by Ultra Death, they are larger than regular Death Scythes and travel in one direction towards Ultra Death's position a brief moment after spawning- continuing until they travel off-screen or are killed. Unlike regular Death Scythes they only deal half a heart of damage.

When spawned in manually they remain stationary and only deal contact damage if walked into.
Fistula

Degraded Boss
Main path
Small

Medium

Large

Alternate path
Large

**Fistula** is a boss that can appear:

* in the Cellar.
* in the Caves and the Flooded Caves.

The large Fistula has 60 HP, the medium forms have 15 HP, and the small forms have 8 HP.

## Behavior

* Moves around the room slowly, bouncing off the walls.
* When enough health is depleted, the one large Fistula breaks into four medium Fistulas.
	+ Medium forms behave identically but move slightly faster and can bounce off other enemies.
* Each of the four medium Fistulas breaks into two small Fistulas.
	+ Small forms behave identically but move very fast.
* Each of the smallest Fistulas spawns a Charger with 15 health points on defeat unless they are over a pit or other obstacle.
* Altogether, the pieces have a combined total of 184 HP (304 HP if including the 8 Chargers).
* All stages of Fistula deal a whole heart of contact damage.

## Champion Versions

**Grey**: 15% larger with 25% more HP (75). Spawns Boom Flies with 15 health points instead of Chargers unless the smallest Fistula piece is over a pit or other obstacle. Each piece travels much slower and splits into three medium Fistulas as opposed to the original's four, similar to Teratoma.
## Gallery

* Fistula in-game.
* Medium-sized Fistula.
* Small Fistula.
* Grey Champion Fistula.
* Medium-sized Grey Champion Fistula.
* Small Grey Champion Fistula.
* Fistula's appearance in the Mother fight and in Corpse.
* Fistula as one of Delirium's forms.

## Trivia

* Fistula appeared in the original *The Binding of Isaac*.
* A fistula is an abnormal connection between organs, intestines, and other tissues.
* Fistula’s splittings after taking enough damage is a reference to the game *Asteroids*, where asteroids would float diagonally and split after taking enough damage. This was confirmed by Edmund McMillen[*citation needed*].
* Fistula used to be a Caves / Catacombs boss in the original *The Binding of Isaac*, but as of *Rebirth*, it was a Cellar boss.
	+ It has been moved back into the Caves.
* Teratoma is the posthumous version of Fistula.
* Unlike the original *The Binding of Isaac*, Fistula doesn't bounce off of rocks.
* Fistula was inspired by a boss of the same name in another Edmund McMillen game, *C-Word*.
* Fistuloid is an enemy variant of this boss combined with what looks to be a Charger or Spitty.
* The Matriarch is a boss added in Booster Pack #5 that is simultaneously based of a Fistuloid, Chub, and this boss. The Matriarch will also spawn small Fistulas throughout the battle.
* Mother will spawn a unique Fistula with a rotten appearance during one of her attacks.
	+ A similar Looking Fistula can be encountered in the Corpse.
* Fistula is one of four bosses that can be spawned by It Lives, the other three being Chub, Polycephalus and Teratoma.
Eye Drops

This article is about **Eye Drops**, similar in appearance to Tropicamide.
**Eye Drops** is a passive item added in *The Binding of Isaac: Repentance*.

## Effects

* Increases the fire rate of tears fired from Isaac's left eye by 40%.
	+ The difference in fire rates causes Isaac's tears to be fired at a staggered rate.
	+ The first shot in a while is always a double shot.

## Notes

* The listed fire rate on found hud is x1.2 fire rate excluding any items that add to fire rate directly.
* Every type of attack that does not use both of Isaac's eyes benefits from the fire rate up, but will not have staggered attack rate. These include, for example:
	+ All charged attacks such as  and .
	+ All tear replacers such as  and .
	+ All one-eyed characters and item effects, such as  Cain and .
	+ Attacking via familiars, such as  and  Tainted Lilith.
* Multi-shot attacks such as  and  *do* have staggered firing.

## Synergies

* //: The bonuses these items give go to Isaac's left eye, making them more beneficial.

## Interactions

* //: Multiple copies of Eye Drops do not stack.
Famine

Degraded Boss

**Famine** is a Harbinger that can appear in all environments of Chapter 1 (Basement, Cellar, Burning Basement).

## Behavior

### Phase 1

* If Isaac is to the left or right of Famine, he charges horizontally across the screen. He continues this charge off-screen and reappears from the opposite end of the screen.
* Spawns a Pooter with a limit of 2.
	+ If this limit is reached Famine will move to try to position himself horizontally of Isaac so he can charge at him.
	+ Any Pooters caught in Famine's charge will be killed.

### Phase 2

When Famine takes a sufficient amount of damage, his body and horse explode and vanish while only his head remains.

* Famine's head behaves similarly to a Maw, slowly moving towards Isaac, and occasionally stops to fire three projectiles in a spread at Isaac.

Famine deals a whole heart of contact damage in both phases and during his charge.

## Champion Versions

**Blue**: Charges more often and veers towards Isaac (similar to the Dark One). He can do this attack regardless of whether Isaac is to his sides or not. He will shoot six bullets in all directions instead of summoning Pooters. In *Phase 2*, he will spit out a cluster of bullets instead of a triple shot, similar to Monstro's attack, with a lower shot speed than his non-champion version. Will always drop a Soul Heart upon death.
## Gallery

* Famine in-game.
* Famine in his second phase.
* Blue Champion Famine.
* Blue Champion Famine in his second phase.
* Famine as one of Delirium's forms.
* Famine as seen in Isaac's last will.
* Mini version of famine summoned with the 7 seals.

## Unlockable Achievements

* The Book of Revelations - Defeat a Harbinger.

* 7 Seals - Defeat all 5 Harbingers.

## Trivia

* Famine does a full heart of damage with his charge attack and contact damage under normal conditions.
* Famine appeared in the original *The Binding of Isaac.*
* Famine is one of the Four Horsemen of the Apocalypse mentioned in the Bible. However, in the Bible, Famine is depicted as riding a black horse rather than the tan horse seen in-game.
* A famine is the scarcity of food over a large area, which can explain Famine's emaciated appearance.
* Famine is shown with pupils in his Rebirth artwork, which is absent in his original artwork. This is slightly averted with his ultra form.
* Blue Champion Famine's cleft lip is a reference to Monstro's iconic cleft lip, as he uses a similar projectile cluster attack to Monstro in his second phase.
Everything Jar

**Everything Jar** is an unlockable activated item added in *The Binding of Isaac: Repentance*.

## Effects

* If the item is not fully charged, it spawns a pickup based on how many charges it had;
	+ 1: A Poop.
	+ 2: A Penny.
	+ 3: A Bomb.
	+ 4: A Key.
	+ 5: A full Red Heart.
	+ 6: A pill.
	+ 7: A card, rune, or soul stone.
	+ 8: A Soul Heart.
	+ 9: A Gold Heart.
	+ 10: A Golden Key.
	+ 11: A Golden Bomb.
* If the item is fully charged, it instead has one of the following effects:
	+ Spawns a random amount of various pickups, including coins, hearts, bombs, and keys, cards, pills, and trinkets.
	+ Spawns a Fly.
	+ Spawns an assortment of friendly dips, blue spiders, and blue flies.
	+ Spawns random enemies in front of every door and closes the doors.
		- Enemies also spawn in front of connected Secret Rooms and Super Secret Rooms if there are any next to the current room.
	+ Does nothing.
	+ Spawns an item pedestal that cycles between 9 different items 30 times per second. The item selection is from the current room's item pool.
	+ Spawns many colored beams of light around the room that deal damage to enemies. These beams of light varyingly scale with Isaac's damage.
	+ Fills the room with poop, similarly to
	+ Spawns 6 troll bombs around the room, similarly to .
	+ Flips all sprites to the side, gives Isaac random tear effects for the rest of the room, and permanently increases and decreases one of Isaac's stats, similarly to .
	+ Spawns many Shopkeepers around the room. These have a chance to be special/error shopkeepers.
	+ Spawns a Giga Bomb pickup that gives Isaac a bomb and converts his next bomb into a giga-bomb that deals 300 blast damage, spawns many rock projectiles that deal 15 damage, and creates 13 holes in a diamond shape around the blast zone that deal 99 damage to enemies that were in their areas. These holes cannot spawn if they would close Isaac's path around the room.
		- This bomb has a chance to be lit when it spawns.

## Synergies

* : Spawns a random wisp.
* : Using the first charge will always spawn a white poop.
* : Allows Isaac to consistantly produce high quality pickups or specific types of pickups for use in known recipies.
* + : Consistant spawning of golden bombs allows for Mama Mega to be reused repeatedly.

## Interactions

* : Fully recharges Everything Jar upon pickup. It also slowly recharges Everything Jar's first charge while Isaac is in an uncleared room.
* : Instead of doubling its effect, Everything Jar will spawn a poop alongside its normal drop.
* /  /  Tainted Isaac: The rapidly cycling item pedestal does not gain more items in its selection or slow down.
* : Consuming the Everything Jar will cause Void to spawn a poop when used, regardless of charge level.

## Notes

* Everything Jar can spawn gold hearts and bombs even before they are unlocked.

## Trivia

* **Everything Jar**, , , and  are the only activated items that can be used when not fully charged.
Darkness Falls

**Darkness Falls** is challenge #4.  Eve is the default character for this challenge, and she starts the challenge with , , , , , and . The goal is to defeat Satan.

## Difficulty

This challenge focuses on a high risk, high reward style of play. When low on health, Eve can inflict more damage. As a result, the majority of the challenge will be spent in a near-death state.

## Strategy

* Since the player is playing as Eve, Whore of Babylon will activate when having 1 Red Heart or less, rather than 1/2. Since she starts with 2 hearts, the Razor Blade can activate this effect immediately.
	+ Because the Razor Blade inflicts damage, using it will also activate the Dead Bird.
* Sacrificial Dagger and Dark Matter can be used together. The fear effect can drive enemies away, allowing Eve to chase and kill them with the dagger.
* Making one Devil deal can permanently activate Whore of Babylon. However, this can put Eve in a very dangerous position with only one Red Heart. A  can produce  Soul Hearts or  Black Hearts, which can allow Eve to maintain a buffer of health while maintaining the Whore of Babylon's effect.
* Since all of the starting items are from the Devil Room pool, Eve has a much higher chance to get some of the stronger items such as  or . As such, opening the Devil Room as often as possible should be a priority.
	+ Also, to prevent Angel Rooms from appearing later on in the run, it is advised to take the first Devil Deal encountered.

## Notes

* Killing Delirium will count as completing the challenge.

## Unlockable Achievements

* Rune of Dagaz - Complete **Darkness Falls (challenge #4)**.
Faceless

### Found In

The **Faceless** is a monster added in *The Binding of Isaac: Repentance*. It takes on the appearance of a Gaper with most of its head cut off, but with its entire spine still intact. Initially, it wanders around the room aimlessly, occasionally firing out 6 blood shots in a hexagonal shape. Once it takes damage or if Isaac gets close to it, it starts to chase him and fires shots much more frequently. Upon death, it may turn into a Pacer or Gusher but more often the latter.

## Variations

### Stage HP

 100
 0

### Found In

Found on the Ascent to Home

**The Tainted Faceless** appears to be a Fatty version of the Faceless, with its lower jaw including teeth still intact.

The Tainted Faceless walks towards Isaac while rapidly releasing volleys of 6 blood shots in a hexagonal shape. It essentially behaves like the Faceless with higher health and faster attack rate.

## Trivia

* Faceless originate from the *Antibirth* mod.
Fortune Cookie

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

## Effects

* Gives Isaac a fortune, Soul Heart, Card, Rune, or trinket, similar to a Fortune Telling Machine. Fortunes are much more likely to be given than anything else.

Loot Table
 Trinket | 3.5%

## Notes

* Ironically, this item is unaffected by Luck.
* On its own, this item is considerably worse at generating Cards, Runes, and Soul Hearts than ; Fortune Cookie produces 1 per 7.4 charges on average, while Crystal Ball produces 1 per 6 charges guaranteed. However, with , Fortune Cookie produces 1 per 3.7 charges on average, nearly twice as often as Crystal Ball.
	+ If you include the chance of trinkets generating, then Fortune Cookie will produce 1 per 6.6 charges, or 1 per 3.3 charges with 9 Volt.
* , , and  can be generated by this item.
* Using this item in a room with enemies, spikes, or other hazards can often make it difficult to see what is happening, as nearly half of the player's screen may be covered by a fortune. This can be circumvented by pausing the game and waiting for the fortune to disappear.

## Synergies

* : Spawns a green wisp on the middle ring. Each wisp gives Isaac +0.2 Luck.

## Trivia

* Fortune Cookie is from the *Antibirth* mod.
	+ Before *Antibirth*, this item originated in the *Binding of Isaac: Community Remix* mod.
* This item is a Fortune Telling Machine counterpart to , which behaves like a Slot Machine.
Decap Attack

**Decap Attack** is an unlockable activated item added in *The Binding of Isaac: Repentance*.

## Effects

* Throws Isaac's head while allowing to shoot from the spot it lands, blocking enemy shots as well as dealing contact damage to nearby enemies. Meanwhile, Isaac's body can no longer shoot tears.
	+ The head does 24 damage on impact and 4 damage per tick (12 damage per second) on contact when it's on the ground.
	+ The head can return by picking it up with the body, or by using the item again without requiring charges. Both the throwing and retaking of the head can deal damage to enemies passing through.

## Notes

* This item acts similarly to  Tainted Forgotten's birthright.

## Synergies

* +  as  Judas /  Dark Judas: Grants Judas +2 damage and x3 tears fired per second while his head is detached from his body.
* : A stationary wisp spawns where Isaac was when he threw his head that fires tears in the same direction Isaac does. The wisps do not persist between rooms.

## Interactions

* : No effect.
* The Forgotten: The head changes in sync when switching between The Forgotten and  The Soul. The Forgotten's bone attack still belongs to the body, while The Soul's tear attack belongs to the head as expected.
* Tainted Forgotten: Throws the head of Tainted Forgotten, but the bone attack still remains on his body. The head can only be recalled by reactivating the item or having the body touch the head.
* /: Isaac is invisible apart from his shadow while both items are active.

## Trivia

* The name, description and effect of this item is a reference to the Sega Genesis game of the same name from 1991.
E. Coli

**E. Coli** is a passive item.

## Effects

* Enemies that touch Isaac are transformed into Poop.
* This item belongs to the  set. Collecting three items from this set will transform Isaac into a walking pile of poop.

## Notes

* Bosses cannot be turned into poop.
* Enemies that are turned into poop do not count towards on kill effects such as health regeneration from   or the damage increase from .
	+ This is especially detrimental for  Tainted Keeper or  Tainted Magdalene which depend on pickups generated on enemy kills.
* Poop created by this item is not grid-aligned, and flashes red when hit, similar to damaging monsters.
	+ Poops produced by E. Coli crumble upon being attacked, identically to regular poops.
* If you touch the middle section of a Grub with E. Coli, it will then split and become two heads (rather than destroying and spawning Maggots).
* Mullibooms can be turned into poop without taking damage.
* The poops vanish if the room is left and then returned to.
* Turning Champion version of a monster into poop will forfeit the chance to get the champion's drop.

## Synergies

* /: Grants poops made from enemies a chance to drop pickups.
* : Enemies that die by being turned into poop do not disrupt the Death's List chain and clearing a room by turning all its enemies into poop still grants Isaac the Death's List reward.
* : Enemies that are turned into poop generate double the normal amount of Dips.
* : On-contact effect still applies to enemies if Holy Mantle negates the contact damage taken.
* : Isaac can turn enemies into poop without taking damage.
* : If an enemy is hit by a lodestone tear perfectly simultaneously with it being turned into poop, the resulting poop will be tinted black and have a lodestone aura that sucks in enemies. This poop will return to normal after a few seconds.
* : Enemies touched are turned into Golden Poop.
* : Isaac can heal by destroying poops created from enemies.
* Tainted Forgotten: The body will turn enemies into poop on contact.
* : Provides invincibility during which enemies can be touched.

## Interactions

* Any on kill effects do not include with
* : Bob's Brain will explode upon hitting an enemy that has been turned into poop.
	+ Bob's Brain no longer explodes upon hitting poops made from enemies.
* : The generated poops are affected and will explode when destroyed.
* /: Poops made from enemies still do not drop pickups.
* : The generated poops cannot be white.
* : The generated poops cannot be black.
* : Destroying poops created from enemies do not heal Isaac.
* / : The poops won't drop Black Hearts, negating the touch effect from these items on non-bosses.

## Trivia

* Escherichia coli is a type of intestinal bacteria present naturally in the human intestinal system. However, some harmful strains of E. Coli can cause food poisoning.
* This item is used in High Brow (challenge #2) and  Scat Man (challenge #36).
Free Lemonade

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

## Effects

* Spawns a pool of Lemonade similar to the Lemon Party pill effect underneath Isaac.
	+ The creep deals 8 damage per tick (24 per second) and lasts ~19 seconds.

## Synergies

* : Spawns large, yellow wisps on the middle ring. The wisps make small puddles of yellow creep every other shot, which last for 3 seconds and deal 7 damage per tick to enemies that walk over them (56 damage per second).

## Trivia

* Free Lemonade originates from the *Antibirth* mod.
* The appearance of the item is based off  from the original *Binding of Isaac*. When the item was picked up, its appearance would change from a lemon into a glass of lemonade.
* The pickup quote "Party time!" is a reference to the Lemon Party pill as well as the shock website the pill is named after.
Faded Polaroid

**Faded Polaroid** is a trinket added in *The Binding of Isaac: Afterbirth*.

## Effect

* Occasionally causes Isaac to blend into the ground, which briefly confuses all enemies in the room.
	+ Confusion is only applied once Isaac begins fading into the background. Any enemy that spawns while Isaac is already faded won't be confused until Isaac fades in, then out again.
* Can be used to open the Strange Door in The Depths instead of  or , destroying the trinket in the process.
	+ Faded Polaroid has the highest priority to open the door, and will always be taken first if Isaac is holding multiple items that open it.
	+ This won't work if the trinket was consumed by "Gulp!" pill, , or .

## Synergies

* Golden Trinket /  / : Each trinket copy stacks, lengthening the duration of the confusion and visual effect per stack.

## Trivia

* Faded Polaroid being used to open the Strange Door is a nod to a mechanic in the original *Binding of Isaac: Wrath of The Lamb* flash game, where  was a trinket in that game and was required to access the Chest after beating Cathedral.
Edmund McMillen

**Edmund McMillen** is the creator of *The Binding of Isaac* series, *Super Meat Boy*, and various other games.

Edmund is represented in-game as the Ultra Pride mini-boss.

For a full list of his games, see his Wikipedia article.

## External Links

* Edmund's twitter
* Edmund McMillen on Wikipedia
* Official blog
* Edmund's user page on Newgrounds
* Edmund's Dev Blog for Gay nerds
Delirious

**Delirious** is an unlockable activated item added in *The Binding of Isaac: Afterbirth †*.

## Effect

* Upon use, spawns Delirium in a form of a friendly boss for the current room.
* Changes the appearance of the current room so it looks like a different chapter.

## Notes

* Sometimes bosses don't spawn because of grid entities getting in the way. When this happens, the upper door appears to have friendly particles.
* Unlike , this item can be charged with a single Lil' Battery.
	+ Lil' Battery gives 6 charges.
* It is possible for Hush to spawn, despite Delirium not transforming into Hush during its boss battle.
* If a boss summons monsters, the monsters will be charmed and will follow Isaac out of the room.
* Delirious has a 60% decreased item pool weight, making it less likely to appear than other collectibles.
* Certain large bosses with high health like Hush can block projectiles while Isaac stays within their hitbox, with enemies often dying when they touch the boss. Very useful for bullet heavy bosses.
* Using Delirious in the Delirium fight is ill-advised, as the player may confuse which Delirium is the right one to attack, often causing more chaos in an already chaotic battle.
* Some bosses leave fires on the ground, such as the orange champion Little Horn, which can still hurt Isaac.

## Synergies

* : Generates a white wisp that resembles one random boss from this list:
	+ Monstro: Fires an inaccurate spray of 6-10 tears at a time, similarly to  but without the charge time.
	+ The Duke of Flies: Each wisp will create and can have up to 3 Blue Flies out at a time, similar to .
	+ Loki: The direction the tears are fired alternates between the cardinal and ordinal directions, similar to .
	+ The Haunt: Fires  lasers. The laser does not need to be charged to be fired, and can tick up to 8 times for a total of 8 damage.

## Interactions

* : Either angry version of Blood Puppy will target friendly bosses as well and can drag them along with it when it charges them. Blood Puppy cannot damage friendly bosses; however, friendly bosses can damage Blood Puppy despite not targeting it outright.
* : Broken Modem also affects friendly bosses and projectiles created by them.
* : The thrown Eraser can’t hit friendly bosses; however, if it erases their hostile variant, they too are erased. If Delirious attempts to spawn an erased boss, it will fail to do so, wasting a use.
* /  /  / : Explosions from ghosts can harm friendly bosses.
* : Friendly bosses start with less health if they have over 60HP.

## Trivia

* This item was most likely intended to be the "ultimate item" of *Afterbirth †*, similar to  of the *Afterbirth* DLC.
	+ and  are similar in unlocking complexity in the *Repentance* DLC.
Dark One

Degraded Boss
Main path

Alternate path

**Dark One** is a boss that can appear:

* In all environments of Chapter 2 (Caves, Catacombs, Flooded Caves).
* Only in the Catacombs.

## Behavior

* Sends out a ring of 12 projectiles.
* If Isaac is below him, fires a  laser downwards.
* Charges twice across the screen, veering slowly towards Isaac while charging. When going off-screen, he reappears from the opposite end of the screen. Dark One will do this attack more often if Isaac moves to one of his sides.
* Dims the room, causing the Curse of Darkness effect for a period of time.

## Gallery

* Dark One in-game.
* Dark One as one of  Delirium's forms before Repentance.
* Concept art of an early version of Dark One (named "Dark Boy") on the top left corner, with other concept arts of other Rebirth bosses.

## Notes

3DS If Dark One dims the room, pause the game and the dim will eventually go away while still in the pause screen.

## Trivia

* The Adversary is the posthumous version of him.
	+ One of Dark One's horns is cut off during his death animation, signifying his transformation into The Adversary.
		- The sprite can flip horizontally, making it look like the Dark One lost his right horn, even though the Adversary's left horn is broken
* Dark One is one of the three bosses that can dim the room (a temporary Curse of Darkness effect). The other bosses are The Adversary and The Lamb.
Fistuloid

### Found In

The **Fistuloid** flies towards Isaac in an erratic waving motion. When it gets close to Isaac, it fires a blood shot at him and propels itself in the opposite direction. Upon death, it fires a maggot that flies off-screen. The maggot is fired in the cardinal direction closest to Isaac and will do a full heart of damage if touched.

## Trivia

* Fistuloids were added in Booster Pack #4.
* Fistuloids appear to be small Fistulas with a Chubber's charger stuck inside.
* The Matriarch, added in the Booster Pack after which this enemy was added, is designed in a way that resembles a larger version of a Fistuloid.
Fate's Reward

**Fate's Reward** is an unlockable passive item added in *The Binding of Isaac: Afterbirth*.

## Effects

* Spawns a familiar that fires tears with the same damage and tear effects as Isaac's tears.
* Fires at half the normal fire rate of a familiar.
* The familiar is not affected by  range/ tear height, only tear falling speed.
	+ Since tear height and shot speed ups lower tear falling speed in order to adjust Isaac's range, increases to either stat will decrease the familiar's range, and decreases to either stat will increase the familiar's range.

## Notes

* Familiars that follow behind Isaac have a certain priority in how close their position is to him over other familiars, with Fate's Reward having 5th priority.

## Synergies

* : Familiar's tears will travel very far and then bounce once, traveling up and hitting the nearest wall.
* : Will fire tears that burst into split tears. Does not affect fire rate.
* : Will fire explosive tears. Does not affect fire rate.
* + : The tears fired by the familiar will eventually explode in a star-like pattern of Brimstone lasers if they don't hit anything.

## Interactions

* Following tear modifiers do not affect Fate's Reward, and the familiar will only fire normal tears:

* /  / : Fate's Reward only fires single tears. The items do not affect the fire rate of Fate's Reward.
* : Familiar's tears will turn a brown color but can not be charged.
* : Fate's Reward will only fire while the crosshair is being moved, and can only fire in cardinal directions.
	+ Fate's Reward will aim and fire at the crosshair, wherever it's pointed.
* : Does not affect fire rate, but does affect damage.
Fish Tail

**Fish Tail** is a trinket added in *The Binding of Isaac: Afterbirth †*.

## Effects

* Many items and trinkets that generate Blue Flies or Locusts will generate twice as many.

## Notes

* Flies may spawn on top of each other, appearing as a single fly initially.

## Synergies

Blue Fly sources with doubled flies:

* Berkano
* Black Rune
* Red Chest
* Friends Till The End!
* Rotten Heart

Other notable interactions:

* : Isaac will gain twice as many flies per use, meaning each fly will be tripled.
* : Flies generated will be doubled.
* : Blue flies generated will be doubled, but charmed flies will not be doubled.
* : Will spit two flies at a time with one being a copy. Will only spawn more flies when the original fly is destroyed.
* : The duplicated flies will spawn on top of the enemy and deal damage immediately.
* Tainted ??? / : Blue flies created by corny poops will be duplicated when spawned in, but not when the poop is broken.
* Keeper /  Tainted Keeper: Blue Flies created from hearts will be doubled.
* /  /  /  / : Spawn doubled despite locusts not usually being duplicated.

## Interactions

* : No effect.
* : No effect.
* Soul of Apollyon: No effect.
Devil Room (Item Pool)

This article is about the item pool. For the room, see Devil Room.

The **Devil Room** pool is the pool of items that can be found in the Devil Room and can be given from Hell Games. All items can be bought for some number of Red Heart containers (In the case of the Devil Room). If Isaac has no Red Heart containers, items can be bought for three Soul Hearts / Black Hearts.  Occasionally, items may cost Soul Hearts even if Isaac still has Red Hearts.

Any items outside of the Devil Room item pool will have a price of 1 Red Heart or 3 Soul Hearts/Black Hearts. This can be caused either by obtaining  or exhausting the item pool, making  appear.  The exceptions to this are items that cost 30 cents in Angel Shops from , and , which cost 2 Red Hearts, 1 Red Heart and 2 Soul Hearts, or 3 Soul Hearts.
Flat Stone

**Flat Stone** is an unlockable passive item added in *The Binding of Isaac: Afterbirth † (Booster Pack #5)*.

## Effects

* Tears bounce off the floor.
	+ Whenever a tear bounces, it deals splash damage to all nearby enemies for 25% of Isaac's tear damage.

## Notes

* The bounces increase effective range without affecting the stat, usually by around one third.
* Indirectly acquiring  through starting an  Eden run or the  and  counts towards unlocking the item.
* Should be avoided when going for The Beast fight, as tears will fall straight to the ground during the final fight.
* Should be avoided when going for Mother, as encountering Rotgut's 2nd phase becomes near impossible to hit.

## Synergies

* : Will now bounce once, causing two explosions and two gas clouds to appear.
* : Bone tears will bounce normally, and bone shards will only bounce once.
* /  / : Tears release smaller tears every time they bounce.
* : Bombs bounce, dealing damage to nearby enemies when they bounce.
* The Forgotten: The bone club bounces when thrown. Works even with  .
* : The explosive shot bounces, poisoning and dealing high damage to nearby enemies every time it bounces.
* : The tear constantly bounces.
	+ With , bone shards burst on every bounce.
	+ With , electricity sparks on every bounce.
* : The knife bounces as it flies away from Isaac. Each bounce splashes, dealing the current damage of Isaac's tears.
* : All tears bounce simultaneously, greatly increasing reach of the burst.
* : Tears leave a pool of creep with each bounce.
* : Eyeball tears bounce repeatedly against the floor when they are about to disappear, but can be knocked by other tears to reset their range, meaning tears can be kept in the air forever as long as they are hit when they are bouncing against the floor.

## Interactions

* ///: Overrides Flat Stone.
* : No split tears on bounces.
* : Each time the tear touches the ground, there is a chance for the damage bonus to reset, making it nearly impossible to stack or keep it.
* : The effective range of Incubus' tears is roughly doubled, with a single bounce in the middle of the flight.
* : No electricity on bounces.
* : The stone fired by Kidney Stone doesn't bounce.
* : Initial tears will act as normal for Lachryphagy but tears from burst will bounce.
* : Only the last two tears will connect via electricity.
* : Beams continually shrink and grow. Shrunken beams do roughly 75% of normal beams' damage.

## Trivia

* Flat Stone is based on this Steam Workshop item by Maddogs and Joe, originally known as Hydrophobicity.
* It seems as though originally, the lasers produced by the Technology items (, , and ) and  were meant to synergize, as seen in the concept art of Flat Stone.

## Gallery

* Flat Stone's appearance in the original Steam Workshop mod.
* Flat Stone Concept Art Made By \_Kilburn.
Dead Onion

### Collection Grid

*(page 4, column 1, row 4)**(page 3, column 11, row 5)**(page 3, column 12, row 5)*

This article is about **Dead Onion**, not to be confused with The Sad Onion.
**Dead Onion** is a passive item.

## Effects

* Grants piercing and spectral tears.
* +0.25 range.
* -1.5 range.
* -0.4 shot speed.
* -0.5 tear falling speed.
* Tear size multiplier: 1.5x.
* +0.22 tear size.

## Notes

* Although the description says "Toxic aura tears", the tears do not do toxic/poison damage.
* Using Dead Onion in a Crawl Space will cause tears to fall through the floor.

## Synergies

* : Does not affect shot speed or tear size, but still gives the piercing effect.
	+ : Shot speed, range, and tear size will be affected.
* : Tears will destroy enemy projectiles without being destroyed in the process.

## Interactions

* Azazel: Not recommended. Range penalty is the only effect.
* : Not recommended. Bombs are slow to fire and will pass through enemies, making it far more difficult to hit them with explosions.
	+ Bombs also deal 2.5x Isaac's damage to enemies when passing through them.
* : Overrides Dead Onion, although stat effects apply.
* : Overrides Dead Onion, although stat effects apply.
* : Not recommended. Tear moves very slowly making it hard to kill mobile enemies.
* : Overrides Dead Onion.
* : Fires a barrage of large tears that disappear at close range. Spectral and piercing effects make it very effective at close range.
* : Not recommended. Tears will travel a very short distance before they return to Isaac and eventually disappear.
* : Not recommended. While tears do massive damage at short range, it makes it a lot easier to be damaged by explosive enemies or enemies that do contact damage.
* : Edges of tears retain both piercing and spectral effects; however, the center of the tear will lose them and bounce.
* : Not recommended. Acid Tears no longer impact objects and can no longer open Secret Rooms.
	+ Acid Tears can break objects (but still can't open doors or Secret Rooms).
* : Laser size is increased.

## Trivia

* Dead Onion has the most stat downs out of any other item if tear falling speed is counted as a stat.
Dummy

**Dummy** is a special enemy available through the Debug Console's `spawn` command.

It is immobile, harmless, and visually identical to a normal Shopkeeper but has a damage counter overlaid on the face, adding up any and all damage taken. Touching the Dummy will reset the counter to 0.00.

Although the Dummy has the limited amount of 10000 HP, it is nearly impossible to kill as its health refills completely on every internal tick of the game; it must take 10000 damage in one frame to be destroyed.

The game considers the Dummy to be a boss, giving it resistance to status effects, immunity to instant kills from  and  and practical immunity to . However, this does allow the Dummy to be killed using a .
Dull Razor

**Dull Razor** is an unlockable activated item added in *The Binding of Isaac: Afterbirth †*.

## Effect

* Hurts Isaac without taking away health, activating any items that trigger upon taking damage.

## Notes

* The item will cost 10 cents if found in a Shop
* As using the Dull Razor will grant extra invincibility frames like normal damage, this item can be used to enter Curse Room for free, or, with proper timing, allow Isaac to avoid taking damage from an enemy or obstacle.
* The invincibility frames allow Isaac to use Blood Donation Machines and Devil Beggars for free.
* Dull Razor ignores shields granted by , and similar items.

## Synergies

* : Spawns a grey wisp on the middle ring. The wisp doesn't fire any tears. Whenever Isaac takes damage, there is a chance that the damage is negated and one of the wisps is destroyed instead. "Damage" taken from using Dull Razor does not count for this effect.
* : Dull Razor activates twice, triggering on-damage items twice.

## Interactions

For a full list of items that work with Dull Razor, see the list of damage triggered items. Note that any specific extra conditions the items may have for their activation still apply.

* /  / : Absorbs the "hit", wasting both items.
* : Dull Razor activates twice, but "damage" is only dealt once, not triggering synergies a second time.
* : Can block the "hit" Dull Razor inflicts, causing no effect.
* : Disables the effect for the current room.
* : Doesn't charge Dull Razor itself.
	+ **Habit** + : The secondary item will be charged.
		- **Habit** + **Schoolbag** + : If Dull Razor is copied into the second active item through an effect such as  or , the two Dull Razors can be switched between infinitely.
	+ **Habit** +  + : Dull Razor will be charged, allowing for infinite uses of the item.
* : Completely nullifies the effect of Dull Razor.
* : Is not destroyed by a use of Dull Razor, as it counts as self-damage.
* : Cancels the current effect of Purity, allowing a different aura to be gained instead.

## Trivia

* The item works almost identically to the Voodoo Pin in Antibirth.