Binding of Isaac: Rebirth Wiki

(in Afterbirth † and Repentance)

Ouroboros Worm is a trinket added in The Binding of Isaac: Afterbirth †.

Effects[ | ]

  • Tears travel in a large spiral pattern.
  • Grants spectral tears.
  • (except in Repentance) +4.0 range, +2.0 tear falling speed.
  • (in Repentance) +1.5 range, +0.4 tears.
  • A luck-based chance for a homing shot, reaching 100% at 9 luck.
    • The homing shots are not different in appearance.
    • The homing does not override the spiral pattern, meaning tears stay unreliable.

Notes[ | ]

  • (in Repentance) While in the Mirrored World, the spiral pattern will also be mirrored.

Synergies[ | ]

  • (in Repentance)Golden Trinket Golden Trinket / Collectible Mom's Box iconMom's Box: The spiral pattern is larger, tears travel faster and the stats increases are doubled.
  • (in Repentance)Collectible Aquarius iconAquarius: Creep has a chance to be homing.
  • Collectible Dr. Fetus iconDr. Fetus: Since the bombs don't follow the spiral pattern, only the extra range, spectral bombs, and chance for a homing bomb apply.
  • Collectible Tractor Beam iconTractor Beam: The tears follow a straight path, ignoring the spiral pattern; the tears also stall at a specific point, giving a greater chance to land tears.

Interactions[ | ]

  • (except in Repentance) Character Azazel iconAzazel / Collectible Brimstone iconBrimstone / Collectible Technology iconTechnology / Collectible Technology 2 iconTechnology 2: The spiral effect is overidden. All other effects still apply.
    • (in Repentance) The laser is shot in a spiral pattern. Homing does take effect, but is hardly noticeable.
  • Collectible The Ludovico Technique iconThe Ludovico Technique: The tear spirals around in a difficult to control manner, with the added homing chance further complicating things.
  • (except in Repentance)Collectible Mom's Knife iconMom's Knife: Overrides Ouroboros Worm.
    • (in Repentance) Works as intended. The homing, however, is questionable.
  • Collectible Proptosis iconProptosis: The curious pattern allows dealing full damage from a safer range.
  • Character Tainted Azazel iconTainted Azazel: His Brimstone laser is shot in a spiral pattern. Homing does take effect, but is hardly noticeable.
  • (except in Repentance)Collectible Tech X iconTech X: Overrides Ouroboros Worm.
    • (in Repentance) Tech X now inherits the homing chance benefit, without being affected by the pattern.

In-game Footage[ | ]

Trivia[ | ]

  • This trinket is a reference to Øuroboros, which was a prototype of the game "The End is Nigh" by Edmund McMillen and Tyler Glaiel.
  • The Ouroboros is an ancient symbol, showing a serpent or dragon eating its tail.