recursal/Fanatic-Fandom huggingface dataset:
Lil Loki

### Collection Grid

*(page 4, column 10, row 4)**(page 4, column 10, row 4)**(page 4, column 11, row 4)*

**Lil Loki** is a passive item added in *The Binding of Isaac: Afterbirth*.

## Effects

* Spawns a familiar that looks like Loki and follows Isaac, firing tears in all four cardinal directions that deal 3.5 damage.
	+ Lil Loki shoots once per second.
	+ Lil Loki shoots once every 3/4ths of a second.
* This item belongs to the  set. Collecting three items from this set will transform Isaac into a three-faced version of himself.

## Notes

* If an enemy is standing inside of Lil Loki, all four shots will hit it for a total of 14 damage.
* Familiars that follow behind Isaac have a certain priority in how close their position is to him over other familiars, with Lil Loki having 5th priority.

## Trivia

* Despite having close resemblance to the average following attack familiar (e.g. ,  etc.), Lil Loki does not count towards the  transformation.
Marbles

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

## Effect

* Spawns 3 random trinkets.
* Taking damage has a 10% chance to swallow Isaac's currently held trinket, gaining its effect permanently, similar to .

## Notes

* If activated while carrying two trinkets, both will be swallowed.
* Trinkets swallowed via Marbles will not be removed or rerolled by items such as the .
* is still lost after Isaac takes damage from regular sources.
* cannot be used to open  A Strange Door if swallowed.

## Synergies

* : Allows a trinket to appear every time there's a room clear drop as long as the other room clear drop criteria aren't satisfied, as it empties the trinket slot.
* Tainted Eden: Absorbed trinkets are not rerolled by Tainted Eden's passive effect.
* Tainted Isaac: Absorbed trinkets do not take up an item slot.

## Trivia

* Marbles is based on this Steam Workshop item by FoksMachine and Bustin Blotch.
* This item is used in  Pica Run (challenge #41).
* This item is a reference to how marbles and small toys are sometimes swallowed by children.

## Gallery

* Marbles' appearance in the original Steam workshop mod.
MEAT!

**MEAT!** is a passive item.

## Effects

* Grants Isaac one full Red Heart container.
* +0.3 damage.
* Heals 1 additional Red Heart.

## Trivia

* This item is a reference to Bonk's Adventure.
* The throbbing vein on Isaac's head is commonly used in comics to display the emotion of anger on a character's face.
* , , , G FUEL! and  are the only **ALL CAPS** items in the game.
* The item functions identically to .
Little Chubby

**Little Chubby** is a passive item.

## Effect

* Spawns a Charger familiar that charges across the room when Isaac shoots, dealing damage to any enemies in its path until it hits an obstacle or wall.
	+ Little Chubby is fired directly from where Isaac is standing.
	+ Little Chubby is fired directly from where it is located in the chain of familiars behind Isaac.
	+ The familiar deals 3.5 damage per tick ( 52.5 damage per second /  105 damage per second).
	+ The familiar's attack is affected by momentum, just as tears are. Thus, it can be shot diagonally.

## Notes

* For Little Chubby to recharge, it must first get back to Isaac. Therefore, running away from Little Chubby after firing it will extend the time required to recharge it.
* The enemy Chubber can attack like this item, but they have limited range.
* Familiars that follow behind Isaac have a certain priority in how close their position is to him over other familiars, with Little Chubby having 5th priority.

## Interactions

* : Familiar will stay in place relative to Isaac, however, it will still charge across the room but will always return to the spot it first returned to after charging across a room.
* : Little Chubby will charge at the direction that is marked on the floor.

## Trivia

* According to Edmund McMillen, Little Chubby is a reference to one of his reoccurring comic book characters and is, in fact, a talking penis.
Mom's Contacts

**Mom's Contacts** is an unlockable passive item.

## Effects

* Adds a chance to shoot petrifying tears, which stop enemies in place and prevent them from moving or attacking.
* +0.25 range. ( not applied until the next time Isaac's range stat is updated).
* +1.5 range.
* +0.5 tear falling speed. ( not applied until the next time Isaac's tear falling speed is updated).
* This item belongs to the  set. Collecting three items from this set will transform Isaac into his mother.

## Notes

* Despite granting the Yes Mother? transformation, duplicated items will not contribute to unlocking Mom's Contacts. Three **different** items are required to unlock it.
* The chance to fire a petrifying tear depends on the luck stat, and the formula used to determine the chance is:

min
(

1

5
−

⌊

L
u
c
k

∗
0.15

⌋

,
50
%
)

{\displaystyle \min(\frac1 { 5 - \left \lfloor \mathit{Luck} \* 0.15 \right \rfloor},50\%)}

	+ At base Luck (0), the chance is 20%, maxing out at 50% at 20 Luck.
* Petrifying the Heart of a Mask + Heart also freezes the Mask bound to it.
* Petrifying an enemy with a weak zone ( Scolex or Carrion Queen) will make the enemy take damage anywhere while it is petrified, making combat significantly easier.

## Synergies

* ///: If the main tear causes petrification, split tears will too.
* : Finger can also apply the petrification effect.
* : If freezing tears are fed first when they burst, the split tears can also freeze enemies.
* : The tear flickers red, capable of petrifying enemies when it does.

## Interactions

* : The beam can occasionally freeze enemies with no visual difference.
* : Occasionally fires missiles that can freeze enemies. No visual difference.
* : Lasers can occasionally freeze enemies with no visual difference.
* : The electricity that is connecting tears has a chance to freeze enemies.

## Trivia

* Mom's Contacts' appearance was changed in Booster Pack#5.

## References

* The Binding of Isaac Item Trigger Testing
Key Piece 2

**Key Piece 2** is an unlockable passive item.

## Effect

* Combined with , unlocks the golden gate in the starting room of Chest and Dark Room to fight Mega Satan.
* Increases the chance of finding an Angel Room.
* Grants a 2.5% chance of converting Red Heart pickups into Eternal Hearts.
	+ This effect stacks with .

## Notes

* This item is a guaranteed drop from Gabriel if not already in possession.
* The Golden Gate can alternatively be opened using , , , , , or .
* This item, along with , can be rerolled into any item from the Angel Room pool.
* This item also counts as a familiar, meaning it takes up a familiar slot.
* Unlocking the Golden Gate with the combined key pieces and then restarting the floor with  or an I AM ERROR room will waste the key, which will not respawn.
* Will not be rerolled by , , or Dice Room effects.
* Will not be doubled by
* Familiars that follow behind Isaac have a certain priority in how close their position is to him over other familiars, with Key Piece 2 having the lowest priority at 6th and thus being farther from Isaac than familiars of different priorities.

## Unlockable achievements

* Dad's Key - Pick up both Key Pieces from the Angels in one run.

* The Family Man - Pick up both Key Pieces from the Angels in one run.

* Filigree Feather - Acquire both  and .

## Trivia

* This item is used in  I RULE! (challenge #26) and  Ultra Hard (challenge #34).
Huge Growth

"Become immense!"

### Unlock Method

 Increase in size 5 times in a single run via , "One makes you larger" pills, , etc.

**Huge Growth** is a special card added in *The Binding of Isaac: Afterbirth †*.

## Effects

* Grants the following effects for the current room:
	+ Makes Isaac much larger.
	+ +7 flat damage.
	+ +30 range.
	+ +3 range
	+ Allows Isaac to walk over obstacles to destroy them.

## Notes

* This effect doesn't stack if used multiple times in the same room.
* To unlock, Isaac must increase in size 5 times through , , or One Makes You Larger.
	+ Isaac's total size is taken into account in unlocking Huge Growth, any size downs such as One Makes You Small pills and  will hinder progression towards the unlock.
	+ will count towards this when the  effect is active.
* causes  to count for 2 size increases.

## Trivia

* Huge Growth has been added in Booster Pack #1, after the initial release of the DLC.
* Huge Growth is based on this Steam Workshop mod by aeiou.
* Huge Growth is a reference to the card Giant Growth from Magic: The Gathering. The quote is a reference to the card Become Immense, which has a similar effect to Giant Growth, both making a creature larger.
* Despite increasing size,  does not contribute towards unlocking Huge Growth.
Mom's Purse

**Mom's Purse** is a passive item.

## Effects

* Allows two different trinkets to be carried at once.
* Spawns one random trinket.
* This item belongs to the  set. Collecting three items from this set will transform Isaac into his mother.

## Synergies

* : Lets you gain the benefits of the item without losing your only trinket slot.
	+ You cannot replace the  with The  once it is picked up, as it will only occupy the second trinket slot.

## Interactions

* : No effect; Isaac can still only hold two trinkets.

## Trivia

* This item is used in  Pica Run (challenge #41).
Lil Dumpy

**Lil Dumpy** is a passive item added in *The Binding of Isaac: Repentance*.

## Effects

* Gives Isaac a Dumpy familiar, which follows behind him. When Isaac is about to take damage (as with ), Lil Dumpy farts, pushing nearby enemies and shots away. Enemies that collide with obstacles or walls take damage. Pushed shots that hit an enemy deal 7 damage.
	+ Lil Dumpy has a larger, hidden secondary radius that may randomly trigger its fart effect if an enemy projectile enters it.
* After farting, Lil Dumpy goes on cooldown and "falls asleep" until Isaac walks up to him to wake him up. Lil Dumpy resets upon entering a new room.

## Notes

* Does not prevent damage from environmental hazards, including spiked chests
* Lil Dumpy's position behind Isaac can overlap with other Familiars or other copies of itself.
* During the Mega Satan fight, Lil' Dumpy can get stuck at the top of the room and become unreachable for the rest of the fight.

## Synergies

* : Applies to Lil Dumpy and causes the fart to become much bigger and also deal 10 damage.
* : Can Duplicate Lil Dumpy, Practically adding an extra charge to Lil Dumpy's -like protection.
* : Will Copy Lil Dumpy for extra protection, this process can be repeated many times to make Isaac near-invincible in Greed mode, Greedier mode, Boss Rush or with .

## Trivia

* Lil Dumpy is from the *Antibirth* mod. In *Antibirth*, Lil Dumpy instead wandered around the room randomly and would fart when blocking a projectile, which could poison or confuse nearby enemies as well as knock them back and send Lil Dumpy flying.
	+ The design of this item is also based off of Dumplings, a common enemy present in *Antibirth* that does not appear in *Repentance.* Dumplings are a creature featured in multiple of Edmund McMillen's previous Flash games, and even having a game of their own.
* Prior to V1.7.8, Lil Dumpy would instead behave like its *Antibirth* version.
Mom's Wig

**Mom's Wig** is a passive item.

## Effects

* Isaac now spawns friendly Blue Spiders when firing tears.
* Heals Isaac for 1 Red Heart upon pickup.
* This item belongs to the  set. Collecting three items from this set will transform Isaac into his mother.

## Notes

* The spider spawning chance depends on the luck stat, and the formula used to determine the chance is:

1

20
−

⌊

L
u
c
k

∗
2

⌋

{\displaystyle \frac{1}{20 - \left \lfloor \mathit{Luck} \* 2 \right \rfloor}}

	+ At base luck (0), the chance is 5%, maxing out at 100% at 9.5 luck.
* The spiders are spawned when Isaac is shooting, and up to 5 spiders can be spawned at the same time. More spiders can be spawned if the previous ones died.
* This item does not work for Lilith since  tears do not count as her tears.
* Spiders can still be spawned in rooms without enemies.

## Synergies

* /  /  /  /  / : Charging an attack spawns spiders in rapid succession.
* /  / : Moving the tear/crosshair around will spawn spiders rapidly.
* : Doubles the total amount of spiders that can be spawned at the same time, up to a total of 10.
* : Doubles the limit to 10 spiders, in addition to boosting the damage of spiders per the item's base effect.
Lokii

Degraded Boss

This article is about **Lokii**, not to be confused with Loki.
**Lokii** is a boss that can appear:

* In the Womb and the Utero.
* In all environments of Chapter 4 (Womb, Utero, Scarred Womb).

Each half of Lokii has 350 HP.

## Behavior

The fight against Lokii resembles fighting two individual Lokis. Each half of Lokii teleports to random locations in the room and has the same attacks which they perform independently of each other:

* Shoots 4 projectiles in the four cardinal directions, followed by the four diagonal directions, and then the cardinal directions once again.
* Spawns a Red Boom Fly on top of himself. Only 1 Red Boom Fly can be alive at once.
* Shoots 8 projectiles in all directions.

Lokii deals a whole heart of contact damage.

## Gallery

* Lokii in-game.
* Lokii as one of  Delirium's forms.

## Unlockable Achievements

* Loki's Horns - Defeat **Lokii**.

* Glass Cannon - Beat The Family Man (challenge #19), defeat **Lokii**, and unlock  Judas.

## Notes

* Using the  on Loki has a unique interaction, splitting him into Lokii.

## Trivia

* Lokii was added in the *Wrath of the Lamb* DLC for the original *The Binding of Isaac*.
* They are the posthumous version of Loki.
* Lokii's name is a pun on the Roman numeral for two, II.
	+ It can also be a reference to the Latin plural suffix "ii" such as in "radii" and "virii" which is not commonly used.
* Lokii's battle sprite is depicted with no arms despite Lokii's sprite in-game having arms. Additionally, the boss's art is missing Lokii's mark on their foreheads.
* Both Lokii halves have the same sprite, just flipped horizontally.
* The only actual difference with Loki is that Lokii spawns Red Boom Flies instead of normal ones.
	+ Because of this, since Red Boom flies don't explode upon death, Isaac cannot damage Lokii by killing them.
* Lokii's design may be inspired by the Judgement of Solomon, a story from the Hebrew Bible in which King Solomon ruled between two women both claiming to be the mother of a child. King Solomon suggested that the baby should be cut in two, so the women will receive the two halves.
Keeper (Enemy)

**Keepers** (also known as "Greed Heads") are bodiless Hangers, commonly found in Catacombs and the Dank Depths. They can also be spawned by Super Greed and  Ultra Greed, or found alongside Hangers. They move like Hoppers and occasionally stop to shoot two projectiles in a V shape towards Isaac. If hit by these projectiles, Isaac will drop coins.
Little Gish

**Little Gish** is an unlockable passive item.

## Effect

* Spawns a familiar that follows Isaac around and fires slowing tears that deal 3.5 damage.
	+ Little Gish shoots once per second.
	+ Little Gish shoots 1.36 times a second.

## Notes

* Little Gish can drop by defeating Gish.
* Familiars that follow behind Isaac have a certain priority in how close their position is to him over other familiars, with Little Gish having 5th priority.
Mom's Eyeshadow

**Mom's Eyeshadow** is a passive item.

## Effects

* Gives a chance to shoot charming tears, causing enemies to temporarily fight on Isaac's side.
* This item belongs to the  set. Collecting three items from this set will transform Isaac into his mother.

## Notes

* The chance for a tear to be charming depends on the Luck stat. The activation rate is almost equal to

1

/

(
10
−
(
L
u
c
k

/

3
)
)

{\displaystyle 1/(10 - (Luck / 3))}

. With 0 Luck, the chance is 10%, maxing out at 100% at 26.95 Luck.
	+ Due to how this formula works, increases in activation rate are only seen with about every 3 points of Luck, as this formula rounds down after dividing Isaac's Luck by 3.

## Synergies

* : Beam will be colored pink and applies the charming effect.
* /  /  / : Split tears will retain the charm effect if main tear had the charm effect.
* : Finger can also apply the charm effect.
* : Tears produced by this item can charm.
* : If a charm tear is fed, all burst tears can charm. If a normal tear is fed, the burst tears cannot charm.
* : Tear flickers pink, capable of charming enemies when it does.

## Interactions

* : All rings become pink. Testing is needed to determine if all rings have a chance to charm
Magic Fingers

### Collection Grid

*(page 3, column 10, row 9)**(page 3, column 10, row 3)**(page 3, column 11, row 3)*

**Magic Fingers** is an activated item.

## Effects

* Uses 1 Penny to deal damage to all enemies in the room.
	+ Damage dealt is equal to twice Isaac's damage.
	+ Damage dealt is twice Isaac's damage +10.

## Notes

* The item will cost 10 cents if found in a Shop
* This item becomes more valuable once Shops stop appearing.

## Synergies

* +  as  Judas /  Dark Judas: Also has a chance to invoke the effect of .
* : Spawns wisps in the inner ring, looking like coins. The wisps have a chance to drop coins when destroyed.
* +  + : Allows for effectively infinite uses by switching to IV Bag when low on money, with Isaac's Heart preventing it from lowering the player's health.
* : Allows for effectively infinite uses with extreme patience - efficiency can be greatly increased with

## Interactions

* : No effect.
* : Damage boost is mostly ignored.

## Trivia

* The name is a reference to 'Magic Fingers' vibrating beds that could be found in hotels and motels during the mid-to-late 20th century. A person would insert coins into a slot on the device, which would cause pleasant vibrations in their beds for a certain amount of time. The device came to have connotations with sleaziness, as they were associated with seedy overnight locations where one-night stands and such were known to occur.

## Gallery

* 3DS The icon of Magic Fingers as seen on the lower 3DS screen.
Meatball

### Found In

**Meatballs** are grotesque enemies found only in Chapter 4. They slowly slide around the room aimlessly. If Isaac is in sight, they will stop to spew a fountain of short-range blood shots in all directions or spit a line of damaging Red Creep towards Isaac. Upon death, they spawn a Host, which can be faintly seen partially sticking out of the Meatball on one side.

## Gallery

* Unused pre-release sprite for the Meatball found among the Room Editor files.

## Trivia

* Meatballs are one of five enemies (four without Repentance, three without Afterbirth+) in the game that uses Creep as projectiles, the others are Conjoined Fatty,  Bloaty, Ultra Pride and  The Thing.
* Meatballs are one of two only enemies from the Afterbirth expansion that are entirely new enemies and not new variants of already existing enemies. The other is the Corn Mine. The Dukie is an exception as it's technically a smaller version of The Duke of Flies.
* Meatballs now make sounds when they attack.
* Prior to Booster Pack #5, Meatballs had a chance to spawn  Mushrooms upon death instead of Hosts.
Lil Chest

**Lil Chest** is an unlockable passive item added in *The Binding of Isaac: Afterbirth*.

## Effect

* Spawns a chest familiar that has a 25% chance to spawn a pickup and a 10% chance to spawn a trinket after clearing a room. The possible rewards are:
	+ Hearts
	+ Coins
	+ Bombs
	+ Keys
	+ Pills
	+ Cards
	+ Runes
	+ Batteries
	+ Trinkets

## Notes

* Familiars that follow behind Isaac have a certain priority in how close their position is to him over other familiars, with Lil Chest having the lowest priority at 6th and thus being farther from Isaac than familiars of different priorities.

## Synergies

* : The chance to spawn a pickup increases to 31.25%, and the chance to spawn a trinket increases to 12.5%.
Mom's Pearl

### Item Tags

This article is about **Mom's Pearl**, similar in appearance to Cursed Eye.This article is about **Mom's Pearl**, not to be confused with Mom's Pearls.
**Mom's Pearl** is a trinket.

## Effect

* Grants a 10% chance of any non-specific heart drop turning into a Soul Heart.

## Synergies

* Golden Trinket / : Chance of non-specific heart drop to chance into soul hearts increased to 20%.

## Gallery

* Mom's Pearl's original appearance before Booster Pack #5.
Mama Gurdy

**Mama Gurdy** is a boss that can appear:

* In all environments of Chapter 4 (Womb, Utero, Scarred Womb).
* Only in the Womb and the Scarred Womb.

## Behavior

Mama Gurdy resides inside the wall at the top of the room. She has four attacks:

* Creates temporary spikes in the boss room in random locations.
	+ These spikes can spawn under Isaac but have a small delay before they can deal damage.
* Spews a volley of large orange projectiles towards the bottom of the room, leaving slowing Orange Creep.
* Shoots 3, 4, or 7 waves of 5 spread projectiles at Isaac's location.
* Shoots a burst of disorganized projectiles at Isaac.
* Occasionally retreats upwards off-screen before executing her spike attack. Performs her orange projectile attack immediately upon re-entering the screen.

Mama Gurdy deals a whole heart of contact damage.

## Gallery

* Mama Gurdy in-game.
* Mama Gurdy as one of  Delirium's forms.
* Concept sketch of Mama Gurdy along with Dingle.

## Notes

* The  trinket does not protect Isaac from Mama Gurdy's spikes; though they can be avoided with flight.

## Trivia

* Mama Gurdy appears to be the final stage of the "Gurdy" boss line, with the first stage as Gurglings, second as Gurdy Jr., and third as Gurdy.
* Mama Gurdy is the only boss with boss art that doesn't directly display them, showing only a hand.
	+ She is also one of the only bosses not appearing as a degraded boss.
* Mother, the final boss of Corpse, appears to be a postmortem version of Mama Gurdy.
Money = Power

**Money = Power** is a passive item.

## Effects

* Adds 0.04 damage for every coin Isaac has.
	+ The more coins Isaac has, the less effective damage this item gives for picking up new coins.
	+ The damage caps at +3.96 Damage at 99 coins.
	+ Though Isaac can still collect coins if he already has 99, he will not gain any damage bonus from them.

## Synergies

* : Increases maximum damage bonus from Money = Power. The damage caps at +39.96 Damage at 999 coins.
* : Immediately maxes out damage bonus.
* : Increases damage by 1 per 25 coins.
* : Isaac will gain health and damage.

## Trivia

* The name of the item is a reference to the popular saying "Money is power".
* This item is used in  PAY TO PLAY (challenge #24).
* In the game's files, there's a hidden message under Money = Power's icon that says "where are you".
	+ The message was part of an alternate reality game and could be seen on the collection page for a few weeks, representing Isaac asking for his father.
* In the original *The Binding of Isaac*, Money = Power was unlocked by beating Mom's Heart eight times.
Holy Card

"You feel protected"

The **Holy Card** is a special card added in *The Binding of Isaac: Afterbirth †*.

## Effects

* Grants a one-time  effect.
	+ This only applies for the current room.
	+ The effect lasts until damage is taken.
* Has a 25% chance to display the message "You feel blessed!" and spawn another Holy Card.

## Notes

* The effect cannot be stacked by using multiple Holy Cards.
* Tainted Lost starts with this card. Additionally, Holy Cards are significantly more common when playing as this character and can be found even if they have not been unlocked.

## Interactions

* : Holy Card's effect takes priority over the shield from Blanket in Boss Rooms.
* : Effect stacks with Holy Card.
* : Stacks with Holy Card depending on the order of use. If Wooden Cross is picked up after Holy Card has been used, their effects don't stack. If Holy Card is used after Wooden Cross has been picked up, they do. The stacking only lasts for the current room.
* : Will make Isaac unable to find Holy Cards, as all cards turn into pills. If Holy Card is dropped after taking Little Baggy, the Holy Card will turn into a random pill.
Missing No.

**Missing No.** is an unlockable passive item.

## Effects

* Randomizes passive items and attributes on pickup and at the start of every floor.
	+ Stats gain a random modifier. These modifiers do not stack between levels and are instead rerolled every time.
		- Speed -0.2, 0 or +0.2.
			* Also affects maximum speed, may never exceed 2.0.
		- Range -0.5, 0 or +0.5.
		- Range -2.5, 0 or +2.5.
		- Tears -0.5, 0 or +0.5.
		- Fire rate -0.5, 0 or +0.5.
		- Shot speed -0.2, 0 or +0.2.
		- Damage flat -1, 0 or +1.
		- Luck -1, 0 or +1.
	+ Does not affect trinkets, cards, pills, Pretty Flies,  / ,  / ,  / , or active items.

## Notes

* See  for more details of the rerolling process.
* Due to losing all items every level, it is beneficial to try to gain permanent stat boosts if possible. These include using pills when equipped with  or , sacrificing health with  to gain damage or  to gain tears, or using up .
* Like other full-reroll effects, Missing No. has a small chance to not reroll every item.
* Can cause transformations.
	+ Transformations are lost when rerolling out of the items that caused them.
* Missing No. cannot be re-rolled or removed by most means after being picked up, including , , , or taking damage as  Tainted Eden.
* This item can be used to gain more health if desperately needed, as the randomization does often include items that grant you various types of hearts.
* If the player has already obtained a large number of items (such as during a run where they have gained infinite money in greed mode), it is highly recommended to avoid this item, as it will almost always end up rerolling all the items the player has thus far collected into .

## Synergies

* / : Provide the only available methods for getting rid of Missing No.
* : Using Glowing Hourglass to go back to the previous floor will keep the rerolled items, which will allow to reroll them again.

## Interactions

* : When getting the Stairway at the start of a floor, the ladder doesn't spawn. It will spawn at the start of the next floor even if rerolled.

## Trivia

* This item is a reference to the infamous Missing No. glitch occurring in the first Pokémon games. The glitch would often corrupt save files, and therefore randomize various parts of the game as it would use the incomplete index values attributed to entities not included in the final release of the game. Isaac's appearance when affected by Missing No. is based on this glitch which could cause the player's sprite to become scrambled.
* The item also resembles the painting "Composition II with Red, Blue, and Yellow" by Dutch painter Piet Mondrian.
* The background color for the Missing No. achievement has the same color as all the challenge unlocks. This implies that Missing No. was originally intended to be unlocked via a challenge. (Or, perhaps, it was intended to be looked at as an error.)
	+ The background color for the  Suicide King achievement has the same color as all the boss rush unlocks. This implies that potentially  Lazarus would have unlocked  for completing the Boss Rush and Suicide King (challenge #7) would have unlocked Missing No.
Locust of War

**Locust of War** is an unlockable trinket added in *The Binding of Isaac: Afterbirth †*.

## Effects

* Upon entering a room with enemies for the first time, spawns a Red Locust which detonates upon impact with enemies, dealing double tear damage for the impact of the Locust and 60 damage for the explosion.

## Notes

* This trinket can be dangerous to hold, as the locust will instantly target the nearest enemy as Isaac enters the room, which can be close enough to catch Isaac in its blast radius.
	+ The explosion from the locust is very small, on scale of a single tile, but can still hurt Isaac.
* The Locust will also spawn each time a wave starts in Boss Rush.
* The Locust will not spawn each time a wave starts in Greed Mode.
* The explosion takes most bomb effects from items that Isaac has, with some exceptions.

## Synergies

* : Additional smaller explosions will spawn in a tight cross formation.
* : The locust explosions fires thinner beams, dealing 4.8 damage per tick.
* : Locust explosions have a chance to spawn pickups or trinkets.
* : The locusts’ impact damage is doubled and the explosion damage is increased to 85.
* : A ring of 10 tears is shot outward upon detonation, which are affected by Isaac's tear modifiers, and deal damage equal to 15 + 0.6x, where x is Isaac's Damage.

## Interactions

* : The explosion damage is halved to 30 without additional explosions.
* : No ghost is spawned.
* : Pickups and trinkets will not spawn from locust explosions.
* : No additional explosion damage or radius.
* : Mini bombs are not spawned.
* : No spiders are spawned on enemy death.

## Trivia

* Before Booster Pack #3, Locust of War was named Locust of Wrath. Unlike other Locusts, the name of Locust of Wrath was from one of seven Deadly Sins instead of four Harbingers. (This is why the Steam achievement reads as such)
Key (Disambiguation)

**Key** may refer to:

## Enemies

* Ultra Greed Coin (Key), a monster spawned by Ultra Greed.

## Items

* , an activated collectible that opens all doors in the current room in almost all circumstances.
* , a passive collectible that spawns a familiar that collects keys and give random Chests in return.
* Key Pieces, passive collectibles that unlock the golden gate in the starting room of Chest and Dark Room when combined.
* , a passive collectible that grants keys and a Soul Heart, and increases luck.
* , a passive collectible that grants keys and makes chests drop additional pickups.
* , an activated collectible that creates a Red Room adjacent to a viable wall.
* , an activated collectible that brings Isaac back to the first floor of a new run, retaining all of his items.
* , a passive collectible that grants keys.
* , an activated collectible that grants keys and allows to throw keys to deal damage to enemies, destroy obstacles, and open doors.

## Pickups

* Keys, a type of pickup.
* Bombs Are Key, a pill effect that swaps the values of bombs and keys.
* , a consumable item that creates a Red Room adjacent to a viable wall.

## Trinkets

* , which unlocks locked door by adding an in-between room with a few monsters.
* , which gives a chance to open a neighboring Red Room when clearing a room.
* , which grants a key and replaces chests with Locked Chests.
* , which increases the chance of keys dropping after clearing a room and when opening a Chest.
* , which opens Shop doors.
* , which unlocks the passageway to ??? and the Hush fight.

## Environment

* Key Master, a beggar which asks for keys in exchange for Chests and items.
* Key Block, a Metal Block that can be unlocked with a key.
Lucky Foot

**Lucky Foot** is a passive item.

## Effects

* +1 luck.
* Increases chances of winning at Shell Game,  Hell Game, Slot Machine, Fortune Telling Machine, and  Confessional.
* Increases chances of getting a room-clearing drop (independent from the luck stat).
* Increases the chance of a reward from a Beggar or Devil Beggar after each of their first payouts.
	+ On Hard mode, reduces the minimum number of donations for each reward to 2 (from 3).
	+ Does not apply to Key Master,  Bomb Bum,  Battery Bum, or  Rotten Beggar.
* Converts all "bad" pills into their "good" counterparts but doesn't affect neutral ones, like . Pills remain unidentified.

## Interactions

* : Pills can both be good or bad again. Taking a bad pill still applies the benefits from False PHD.
* : The extra luck-independent chance of room clearing drops from Lucky Toe applies only in a diminished form, unless at zero or negative luck. This bonus from Lucky Foot is still retained.

## Trivia

* In the original *The Binding of Isaac*, Lucky Foot had the added effect of changing "bad pills" into "good pills".
	+ This was restored in *Repentance*.
* On the Character Select Screen, this item is mistakenly called the "Luck Foot".
* The Lucky Foot may be a reference to a rabbit's foot, which is carried as an amulet for good luck.
Level 2 Fly

### Found In

The **Level 2 Fly** is an enemy that moves towards Isaac somewhat erratically, dealing contact damage.

## Variants

### Stage HP

 10
 0

### Found In

The **Full Fly** behaves similarly to the Level 2 Fly and Red Boom Fly combined: it chases Isaac and shoots 6 blood shots in all directions upon death. Full Flies do not actively run into Isaac, but will orbit around him closely until he moves, which may end up causing him to run into the fly.

### Stage HP

 20
 0

### Found In

**Level 2 Willos** are stronger versions of the Willo that orbit enemies rather than Isaac; however, when there are no enemies left, they will chase Isaac and, upon catching up, attempt to orbit in a tight ring around him and maintain that distance from him while shooting at him, just like their weaker counterparts.

## Gallery

* Sketches of monsters for *The Binding of Isaac: Rebirth*, including the Lvl2 Fly in the first square of the third row.
Lil Spewer

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

## Effects

* Spawns a random pill.
* Spawns a small Spewer familiar that charges up and fires different types of creep.
* The familiar and his creep change randomly when Isaac uses a pill.
* Possible creep includes:
	+ A line of damaging green creep that deals 0.4 damage per tick (12 damage per second).
	+ A long line of slowing black creep.
	+ A line of short-lasting, damaging red creep, with a larger puddle of creep at the end that lasts longer. The creep will deal 1.2 damage per tick (36 damage per second).
	+ A short-ranged cone of damaging yellow creep that grows larger and deals more damage the further it travels. It deals 2 damage per tick at the lowest range, and increases to 15.2 damage per tick at the furthest (~6-47 damage per second, based on range).
	+ A large ring of long-lasting slowing white creep.

## Notes

* Lil Spewer always starts with green creep.
* The familiar does not do contact damage.
* Familiars that follow behind Isaac have a certain priority in how close their position is to him over other familiars, with Lil Spewer having 5th priority.
* The Ipecac shot created by Torn Card works for unlocking the Lil Spewer achievement.

## Interactions

* : Has no effect on Lil Spewer.
* : Increases Lil Spewer's size and creep pool length (but has no effect on damage).
* : Creates a random spewer rather than copying the current one.

## Trivia

* Lil Spewer is based on this Steam Workshop item by Strawrat and CupertinoEffect.
* The item originates from Edmund Mcmillen's previous game of the same name, in which Spewer could consume pills to give his vomit different effects.
* Lil Spewer was first revealed in a tweet made by Edmund McMillen as an official item for Booster Pack 5.
* In his black form, Lil Spewer resembles Gish, who creates similarly-slowing black creep.
* In his red form, Lil Spewer has a similar appearance to Super Meat Boy, from the Edmund McMillen game of the same name. In his title, Super Meat Boy also creates blood (the intended resemblance of red creep).

## Gallery

* Lil Spewer's item sprite in the original Steam Workshop mod.
* Lil Spewer's normal appearance (green creep).
* Lil Spewer's yellow appearance.
* Lil Spewer's white appearance.
* Lil Spewer's red appearance.
* Lil Spewer's black appearance.
Mom's Lipstick

**Mom's Lipstick** is a passive item.

## Effects

* +5.25 range.
* +3.75 range.
* +0.5 tear falling speed.
* Spawns one random Heart.
* This item belongs to the  set. Collecting three items from this set will transform Isaac into his mother.

## Notes

* As with all Heart Spawns,  adheres to the room's spawning conditions. For instance, the  could be used to transfer Mom's Lipstick to the Cathedral variation of the Super Secret Room to score an Eternal Heart spawn on picking it up.

## Trivia

* In Edmund McMillen's first post-Repentance Lore Stream he explained that Mom's Lipstick is red in order to resemble the lipstick worn by Edmund's own mother in real life.
Modding

**Modding** is the act of modifying graphics and/or gameplay elements of the base game (in other words, creating mods).

Modding for the Afterbirth+/Repentance and non-Afterbirth+ versions are very different, so they have been separated into two pages which are linked to above.

For more information regarding general modding and modding tools, see the two links above or the modding wikitable below.
Larynx

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

## Effects

* Isaac shouts, damaging and pushing away nearby enemies.
	+ The item can be used when not fully charged, but deals more damage and has increased range the more charges it has when used.
	+ The damage the shout deals is 20 + 28 per charge used.
		- The shout also deals extra ticks of damage to enemies that are close enough. These extra ticks deal damage equal to 2.5 + 3.5 per charge used, and can tick a number of times up to half the charges used (rounding up).
			* The range of the extra ticks also varies depending on the charges used: enemies that are closer to Isaac will receive more ticks of damage.
	+ The shout is able to destroy obstacles, such as rocks, Poops and Fire Places and open bombable doors, including Bedroom and Secret Room doors.
	+ The shout destroys enemy shots.
* Larynx gains 1 charge whenever Isaac takes damage, as well as through normal means.

## Synergies

* : Larynx can hold up to two full charges. Only up to 12 charges will be used at a time.
* : Spawns red wisps on the middle ring. The wisps deals contact damage equal to 30% of Isaac's damage \* Charges Used. Charges Used equals the number of charges Larynx had at the time it was used. Health = `1 * Charges Used`. Tear Damage = `1.5 * Charges Used`.
* : Both on-hit charge effects stack, charging 2 points per hit.
* : Fully recharges Larynx at the beginning of boss fights, giving Isaac a way to easily devastate several bosses.

## Interactions

* : The first bar gains an automatic timed recharge, but the further bars will not be affected.
* : **Very poor combination.** Absorbing Larynx and using it through Void will cause Isaac to only perform the 1-charge version regardless of how many times he has taken damage or how many charges Void has, resulting in minimal damage.

## Trivia

* Larynx is the medical term for the voice box, the organ that holds the vocal cords in mammals.
* **Larynx**, ,  and  are the only activated items that can be used when not fully charged.
Maggy's Bow

### Collection Grid

*(page 4, column 7, row 1)**(page 3, column 7, row 4)**(page 3, column 8, row 4)*

### Unlock Method

 Complete the Boss Rush as  Magdalene

**Maggy's Bow** is an unlockable passive item.

## Effects

* Adds one Red Heart Container.
* Red Hearts heal double their value. A Half Red Heart replenishes one Red Heart, a Red Heart or  Scared Heart replenishes two Red Hearts, and a Double Heart replenishes four Red Hearts.  Blended Hearts either replenish two Red Hearts or replenish one Red Heart and add one Soul Heart, depending on how many empty Red Heart Containers Isaac has.
* Heals 1 additional Red Heart
* Does not affect  Rotten Hearts.

## Synergies

* : Doubles the stat boosts from any picked up Heart. Half Red Hearts give two boosts, full Red Hearts give four, and Double Red Hearts give eight.
* Tainted Bethany: Doubles all blood charges gained from Red Hearts.
* : Allows for generation of infinite Red Hearts.

## Interactions

* : Due to doubled healing, extra hearts will be left on the ground to be used for later.
* Keeper /   Tainted Keeper: No effect.
* : No effect; will still only replenish one full Red Heart.
Magic 8 Ball

**Magic 8 Ball** is a passive item.

## Effects

* +0.16 shot speed.
* Upon pickup, drops a random tarot card near Isaac.
* Adds an additional 15% chance for the first Planetarium to appear.
	+ This effect doesn't stack with additional copies of the item.

## Trivia

* Isaac appears to be wearing a fortune teller's head-dress upon picking up the item. This most likely refers to the Magic 8 Ball's association with fortune-telling or advice seeking.

## Unlockable Achievements

* The Planetarium - Collect any 3 items with the 'stars' item tag in a single run.
Loki

Double Trouble

Degraded Boss

This article is about **Loki**, not to be confused with Lokii.
**Loki** is a boss that can appear in all environments of Chapter 3 (Depths, Necropolis, Dank Depths).

## Behavior

Loki teleports to random locations in the room away from Isaac and has the following attacks:

* Shoots 4 projectiles in the four cardinal directions, followed by the four diagonal directions, and then the cardinal directions once again.
* Spawns a Boom Fly on top of himself. A maximum of 4 Boom Flies can be alive at once.
* Shoots 8 projectiles in all directions.

Loki deals a whole heart of contact damage.

A Poky can accompany Loki during the fight, dealing contact damage and blocking Isaac's tears.

 Loki can also be accompanied by 4 Stone Grimaces in the corners of the room.

## Gallery

* Loki's appearance.
* Loki as one of  Delirium's forms.

## Notes

* Using the  on Loki has a unique interaction, splitting him into Lokii.

## Trivia

* Loki appeared in the original *The Binding of Isaac.*
* Loki has smaller eyes and different horns in his boss portrait.
* The Poky in the room does not damage Loki's Boom Flies as it did in the original game.
* Loki's "mark" (The numbers 666 on his forehead) is more noticeable than his appearance in the original game.
* Lokii is the posthumous version of him.
* Loki is based on the Norse trickster god of the same name.
* Edmund McMillen loved Loki's design so much that he made  Little Horn.
* The Horny Boys are a stitched amalgamation of Loki and  Hornfel.
* Loki and Hornfel are siblings.

## References

1. ↑ https://twitter.com/edmundmcmillen/status/1491311684144697345?t=HIqu902V3aUtJqXMP5Oz8A&s=19
Leech

### Collection Grid

*(page 3, column 5, row 7)**(page 3, column 5, row 2)**(page 3, column 6, row 2)*

This article is about the item. For the monster, see Leech (Enemy).
**Leech** is a passive item.

## Effect

* Spawns a crawling Leech familiar that follows Isaac. If an enemy comes near, the Leech will attack and chase it, doing 1.5 damage per tick or about 3.2 damage per second. If an enemy is killed by the Leech, Isaac will be healed by a Half Red Heart.

## Notes

* The Leech's healing effect does not affect characters that do not have Heart containers.
	+ Keeper/  Tainted Keeper will be healed by The Leech.
* Enemies that turn into flesh piles and regenerate when killed such as Globins and some dark red champions regenerate quicker than the Leech can kill them. Isaac will gain half a heart each time the enemies collapse, granting an easy way to regenerate all Red Hearts. This can also open up many powerful synergies with any item that provides a benefit or resource when Isaac takes damage.
* Like with  having a chance to drop from skulls, Leech can rarely drop from the buckets in Downpour.

## Synergies

* Arcades: The player can let the Leech eat Flies from the Shell Game and use the resulting health to gamble on the Blood Donation Machine.
* : Leech grows bigger and does double damage. Still only heals for a Half Red Heart.
* : Enemies can be turned into Poop at the cost of a Half Red Heart, then consumed by the leech to regain health. Utilization of temporary immunity when hit can allow multiple enemies to be turned into poop, resulting in a net gain of health. However, when combined with Gnawed Leaf (see below), the player can simply stand still and let Leech do the dirty work.
* : The leech still can attack the enemies turned into poop and gain health.
* : The player can stand still and allow the Leech to clear a room, granting simple clears and easy health.
* Tainted Bethany: The leech can grant blood charges by killing enemies.
* Tainted Magdalene: Leech restores a full Red Heart.

## Interactions

* /: Enemies that are turned into poop are now treated as regular poop and can't be damaged by Leech.
* : No effect on healing.

## Trivia

* This familiar is notorious for having bad tracking AI.
Mega Bean

**Mega Bean** is an activated item added in *The Binding of Isaac: Afterbirth*.

## Effects

* Petrifies all enemies in the current room for about 1.5 seconds.
* Deals 5 damage and poisons any enemies near Isaac.
	+ The poison deals Isaac's damage per tick and lasts for 6 ticks
* Sends out a wave of rocks across the room in the direction Isaac is facing, dealing 10 damage to any enemies it comes in contact with.
* The fart deflects enemy projectiles which deal 6 damage if they would've hurt Isaac for half a heart, and 7 for a full heart.

## Notes

* The rock wave can be used to open Secret Rooms.
* The rock wave can break rocks to fill in gaps.

## Synergies

* /: Whenever Mega Bean is used, a fire will be shot out behind Isaac. Two flames will be shot if Isaac also has .
* : Spawns tiny magenta wisps on the middle ring. The wisps send rock waves outward when Mega Bean is used. They also petrify and poison all enemies in a large radius when destroyed.
* : Deals double damage, but the status effect lasts for the same amount of time.

## Interactions

* : Doubles the petrification duration but not the poison duration.

## Trivia

 had the same sprite as Mega Bean albeit colored red. Repentance made the sprite of Kidney Bean sprite much smaller.
Dessert

**Dessert** is a passive item.

## Effects

* Grants one full Red Heart container.
* Heals 1 additional Red Heart.

## Synergies

* : When Isaac picks up Dessert it now grants: a permanent +1.0 Damage and +0.2 Shot Speed, a temporary +3.6 Damage (which diminishes to 0 in 30 seconds), heals 1 additional red heart, and takes a permanent -0.03 Speed reduction.
	+ Item pedestals can also cycle between the initial item and Dessert due to Binge Eater.

## Trivia

* Dessert’s sprites can be seen as part of .
Mom's Pad

**Mom's Pad** is an activated item.

## Effects

* Inflicts fear on all enemies in the room for 4 seconds.
* Grants 1 blue fly on use.
* This item belongs to the  set. Collecting three items from this set will transform Isaac into his mother.

## Synergies

* : Spawns a black wisp with a yellow fire in the middle ring. Wisps' tears have a 7.5% chance to inflict fear on enemies.

## Interactions

* : No effect.
* : Spawns two flies. No effect on the fear duration.

## Trivia

* Prior to *Repentance*, this item's description was "Gross..."

## Gallery

* 3DS The icon of Mom's Pad as seen on the lower 3DS screen.
Lil Delirium

**Lil Delirium** is an unlockable passive item added in *The Binding of Isaac: Afterbirth † (Booster Pack #1)*.

## Effects

* Grants a familiar that transforms into another random familiar every 10 seconds.
	+ The familiars it turns into are normal familiars that look white and melted like Delirium.
	+ Familiars deal the same damage as their normal non-Delirium counterparts.
	+ Familiars will not do contact damage.

## Notes

* Lil Delirium can transform into the following familiars:
	+ Acid Baby
	+ BBF
	+ Bob's Brain
	+ Dry Baby
	+ Headless Baby
	+ Hushy
	+ Incubus
	+ Lil Brimstone
	+ Lil Gurdy
	+ Lil Haunt
	+ Lil Monstro
	+ Little Chubby
	+ Little Gish
	+ Robo-Baby 2.0
	+ Rotten Baby
	+ Seraphim
	+ Super Meat Boy (Cube of Meat's 4th stage)
	+ Big Chubby
	+ Farting Baby
	+ Fruity Plum
	+ Isaac's Head
	+ Lil Loki
* Lil Delirium can transform into the same familiar multiple times in a row and therefore stay in the same form for more than 10 seconds.
* Every time Lil Delirium transforms from a free-floating familiar to a follower one, it positions itself at the end of the familiar train.
* Lil Delirium can damage Isaac when transformed into BBF or Bob's Brain.
* Familiars that follow behind Isaac have a certain priority in how close their position is to him over other familiars. Lil Delirium starts at 4th priority regardless of the familiar it transforms into as long as it starts as a familiar that follows behind Isaac. When Lil Delirium changes out of a familiar that follows behind Isaac; its priority resets and becomes equal to its next form (e.g. having 2nd priority when its next form is ). Changing from one following familiar to another will not change priorities.
* can spawn Lil Delirium, which functions as normal.

## Synergies

* : The copy of Lil Delirium will be a different random familiar.

## Trivia

* Lil Delirium is based on this Steam Workshop item by Ashkait and Scayze.
* One of only five items to appear in both the Angel and Devil item pools, the others being , , , and .