Acid Baby

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Item icon
Item altar

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Item Pool Treasure Room.png Treasure Room
Item Pool Devil Beggar.png Devil Beggar
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(page 5, column 6, line 1)
Added in Afterbirth †

Acid Baby is a passive item added in Afterbirth †.

Effects[edit | edit source]

  • Drops a random pill every 2 rooms.
  • Upon using a pill, all enemies in the room will be poisoned, dealing Isaac's tear damage twice for a second.

Synergies[edit | edit source]

  • BFFS! BFFS!BFFS! Icon.pngIncreases the size and damage of familiars.: Acid Baby drops after clearing every room and increases in size. No damage increase on poison effect.
  • Little Baggy Little BaggyLittle Baggy Icon.pngIsaac can hold 2 pills at once and all cards are replaced by pills. / Deep Pockets Deep PocketsDeep Pockets Icon.pngAllows Isaac to carry two cards or pills (or a combination of both) at the same time.: Allowing Isaac to make good use on dropped pills by being able to carry an extra pill.
  • PHD PHDPHD Icon.pngConverts all bad pills into good pills, spawns one pill pickup and restores health. Identifies all pills upon pickup.: All "bad" pills will turn into "good" pills (except for "neutral" ones).
  • Placebo PlaceboPlacebo Icon.png4 roomsWhen used, copies the effect of the pill Isaac is currently holding without consuming it. Does not copy the effects of cards or runes.: Pill can be used repeatedly.
  • "Vurp!" pills: If Isaac's last used pill is a "Vurp!" pill and Isaac finds another "Vurp!" pill afterwards, he can infinitely generate "Vurp!" pills and repeatedly use them for mass poison damage.

Interactions[edit | edit source]

  • Starter Deck Starter DeckStarter Deck Icon.pngIsaac can hold 2 cards at once and all pills are replaced by cards.: All pills dropped by Acid Baby will turn into cards.

In-game Footage[edit | edit source]

The Binding of Isaac: Rebirth The Binding of Isaac: Rebirth The Binding of Isaac: Rebirth
MainPageAchievements.png Achievements MainPageAttributes.png Attributes MainPageBosses.png Bosses TarotCard.png Cards and Runes MainPageChallenges.png Challenges MainPageChapters.png Chapters
Isaac App.png Characters MainPageBabies.png Co-op MainPageItems Small.png Items Item Pools Item Pools MainPageMonsters.png Monsters MainPageObjects.png Objects
Red heart.png Pickups BlueBlue.png Pills MainPageRooms.png Rooms MainPageSeeds2.png Seeds Guppy App.png Transformations The Left Hand Icon.png Trinkets