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(in Afterbirth † and Repentance)

Not to be confused with Collectible Sharp Plug iconSharp Plug.

Extension Cord is an unlockable trinket added in The Binding of Isaac: Afterbirth † (Booster Pack #4).

Effects[ | ]

  • Bolts of electricity arc between Isaac and his familiars, damaging any enemies between them.
    • The bolts do 6 points of damage per strike.
    • The bolts flow through each familiar in reverse order of acquisition, and reach Isaac last.
    • A bolt arcs every 2 seconds with one familiar. 3 of them arc per second with two familiars. 7.5 per second with three or more familiars.

Notes[ | ]

  • Character The Forgotten iconThe Forgotten acts as a familiar while controlling Character The Soul (Character) iconThe Soul, causing electricity to arc between them. (in Repentance) The same applies for Character Tainted Forgotten iconTainted Forgotten and Character Tainted Soul iconTainted Soul.
  • Does not affect temporary familiars or (in Repentance)Collectible The Swarm iconThe Swarm’s gray flies.
  • The bolts will damage destructible obstacles, such as TNTTNT and Fire PlaceFire Places, as a normal tear would.
  • (in Repentance) If taken as Character Jacob and Esau iconJacob and Esau, electricity will arc to familiars held by both characters, not just the familiars owned by the character holding it. It will also arc between Jacob and Esau, even if neither have any familiars.
  • (in Repentance) In co-op mode, electricity will arc to all of them, similar to Jacob and Esau. Their familiars will also be connected.

Interactions[ | ]

  • Extension Cord: Holding two copies or a golden version of this trinket, or having Collectible Mom's Box iconMom's Box has no effect.

In-game Footage[ | ]

Gallery[ | ]

Trivia[ | ]

  • Extension Cord is based on this Steam Workshop mod by Strawrat and CupertinoEffect, which was originally a passive collectible.

Bugs[ | ]

Bug Bug! (except in Repentance) When using Collectible BBF iconBBF, electricity will arc to its last location before exploding, until it respawns.
Bug Bug! (except in Repentance) When Collectible Holy Water iconHoly Water breaks, the sprite is temporarily stored just off the top-left of the screen, toward which electricity will still arc.
Bug Bug! (in Repentance) During the Siren fight in mausoleum if she converts any familiars Isaac will take constant damage.


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