The Stain

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Boss The Stain name.png
Boss versus screen image
Base HPStage HP
400
0
Table dividing line 1.png
Ingame Appearance
In-game appearance

Entity ID
401.0
Table dividing line 2.png
Found In
Boss
Removed in Repentance
Stage The Caves icon.pngStage The Catacombs icon.pngStage Flooded Caves icon.png
Super Secret Room Icon.png
Added in Repentance
Stage The Caves icon.pngStage Flooded Caves icon.png
Super Secret Room Icon.png
Degraded Boss
Stage Sheol icon.png
Stage Dark Room icon.pngStage The Chest icon.png
Table dividing line 3.png
Dropped Items
Boss Boss
Unlock Method
Added in Afterbirth †Something wicked this way comes! Defeat ??? as 3 different characters
Added in Afterbirth

The Stain is a boss added in The Binding of Isaac: Afterbirth that can appear:

Behavior[edit | edit source]

The Stain burrows underground when Isaac is not within range. While burrowed it becomes invincible and follows Isaac's movements. When close to Isaac, it pops out and performs one of the following attacks:

  • Sends out 2 patterns of numerous projectiles in all directions. The first barrage consists of fast-moving bullets that slow down. The second barrage consists of slow-moving bullets that speed up.
  • Sends out tendrils to its left and right leaving small puddles of damaging Red Creep directly around The Stain and to its either side.
  • Spawns two Chargers and can have a maximum of two.

It will stay vulnerable for a brief moment after performing an attack before quickly burrowing underground again.

Champion Versions Needs to be unlocked[edit | edit source]

  • Added in Afterbirth † Grey: Continuously spawns Round Worms instead of Chargers, with a maximum of two at any time. Never fires barrages of bullets.

Gallery[edit | edit source]

Arena[edit | edit source]

When fighting The Stain following obstacles can sometimes spawn:

  • 2 red poops (near upper-right and bottom-left corners)
  • 2 red poops (near the center)
  • 4 red poops (in all corners)
  • 2x2 Pits in upper-right and bottom-left corners

Trivia[edit | edit source]

  • It is the posthumous version of Polycephalus.
  • 2 Stains can spawn for the nightmare wave for the 6th floor of Greed Mode.
  • A third head can be seen in the background in The Stain's boss art.
  • During the versus screen, The Stain's popping out sound can be heard. The Stain is one of seven bosses that can be heard in the versus screen; the other six are The Forsaken, Added in Afterbirth † Big Horn, Mom, Mom's Heart (pre-Repentance), It Lives (pre-Repentance), and Added in Repentance Mother.
  • Prior to Booster Pack #5, The Stain could spawn Drowned Chargers if it was fought in the Flooded Caves. This also applied to Chub.
  • Added in Repentance The Stain has an alternative more degraded form known as The Pile.


Bosses Boss Monstro.png
Chapter 1
Stage The Basement icon.pngStage The Cellar icon.pngStage Burning Basement icon.png
GeminiStevenBlighted OvumDingleThe Duke of FliesFamineGurglingsThe HauntLarry Jr.MonstroPinWidowThe FallenThe Headless Horseman
DangleLittle HornRag ManTurdlings
Baby Plum
Chapter 1.5
Stage Downpour icon.pngStage Dross icon.png
Lil BlubWormwoodThe RainmakerMin-MinClogColostomiaTurdlet
Chapter 2
Stage The Caves icon.pngStage The Catacombs icon.pngStage Flooded Caves icon.png
FistulaChubC.H.A.D.Carrion QueenDark OneGurdyGurdy Jr.The HollowThe HuskMega FattyMega MawPeepPestilencePolycephalusThe WretchedThe FallenThe Headless Horseman
The ForsakenThe FrailThe Stain
Big HornRag Mega
Bumbino
Chapter 2.5
Stage Mines icon.pngStage Ashpit icon.png
Reap CreepTuff TwinsHornfelGreat GideonSingeThe ShellThe Pile
Chapter 3
Stage The Depths icon.pngStage Necropolis icon.pngStage Dank Depths icon.png
The AdversaryThe BloatThe CageThe GateMonstro IIGishLokiMask of InfamyWarThe FallenThe Headless HorsemanMom
Brownie
Sisters Vis
Reap CreepThe Pile
Chapter 3.5
Stage Mausoleum icon.pngStage Gehenna icon.png
The SirenThe HereticThe VisageThe Horny BoysMomMom's Heart
Chapter 4
Stage The Womb icon.pngStage Utero icon.pngStage Scarred Womb icon.png
BlastocystThe BloatConquestDaddy Long LegsTriachnidDeathLokiiMama GurdyMr. FredScolexTeratomaThe FallenThe Headless HorsemanMom's HeartIt Lives
Sisters VisThe Matriarch
???
???
Hush
Corpse
Stage Corpse icon.png
ChimeraThe ScourgeRotgutMother
Chapter 5
Stage Sheol icon.pngStage Cathedral icon.png
SatanIsaac
Chapter 6
Stage Dark Room icon.pngStage The Chest icon.png
???The LambMega Satan
The Void
Stage The Void icon.png
Delirium
Home
Stage Home icon.png
DogmaThe BeastUltra DeathUltra FamineUltra PestilenceUltra War
Greed Mode
Ultra Greed
Ultra Greed
Ultra Greedier
The Binding of Isaac: Rebirth The Binding of Isaac: Rebirth The Binding of Isaac: Rebirth
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