Binding of Isaac: Rebirth Wiki
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(in Afterbirth † and Repentance)

Parasitoid is a passive item added in The Binding of Isaac: Afterbirth †.

Effects

  • Adds a chance to fire an egg sack which spawns slowing creep. If an egg sack hits an enemy, a Blue Fly or Blue Spider is spawned.
  • Egg sack tears have considerably higher tear height and consequently, range.
  • (in Repentance) Template:Transf
  • (in Repentance) Template:Transf

Notes

  • Egg sacks will also spawn blue flies or spiders if they hit Fireplaces or invincible enemies like Death's Head and Stoney.
  • The chance to fire an egg sack is affected by luck. It is 15% at base luck (0) but cannot reach 100% at high luck.

Synergies

Interactions

  • Azazel: Parasitoid has no effect.
  • Collectible Brimstone iconBrimstone: Overrides Parasitoid.
  • Collectible Dr. Fetus iconDr. Fetus: Overrides Parasitoid.
  • Collectible Epic Fetus iconEpic Fetus: Overrides Parasitoid.
  • Collectible Haemolacria iconHaemolacria: Tears retain Haemolacria appearance and only the main tear can spawn flies or spiders when damaging enemies.
  • Collectible Ipecac iconIpecac: Only extra range applies on egg sack tears and they will not spawn flies or spiders.
  • Collectible Mom's Knife iconMom's Knife: Overrides Parasitoid.
  • Collectible Tech X iconTech X: Overrides Parasitoid.
  • Collectible Technology iconTechnology: Overrides Parasitoid.
  • Collectible Trisagion iconTrisagion: Overrides Parasitoid.

In-game Footage

Trivia

  • Parasitoid is a term for when insects' larvae live inside their hosts as a parasite before eventually killing the host.
  • (in Repentance) Parasitoid is one of the only four items that count towards 2 transformations, the other three being Collectible The Bible iconThe Bible, Collectible Hive Mind iconHive Mind and Collectible Magic Mushroom iconMagic Mushroom.


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