Sharp Plug

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Sharp Plug is a passive item.

Effects[edit | edit source]

  • Damages Isaac in exchange for fully recharging Isaac's current activated item.
    • Sharp Plug costs two hearts of health to use.
      • Added in Repentance Sharp Plug's heart cost is one half-heart per charge slot filled. The health cost is not increased in later stages where half-heart damage is upgraded to full heart.
    • Removed in Repentance If the item has any charges, the Sharp Plug will not work.

Notes[edit | edit source]

  • Removed in Repentance If Isaac has less than two Black or Soul Hearts, it will remove them but will not remove any Red Hearts.
  • Added in Repentance Sharp Plug attempts to draw from Red Hearts first.
  • Added in Repentance Sharp Plug cannot deal fatal damage. If used at one half heart, it will not work.

Synergies[edit | edit source]

  • Added in RepentanceDamage-triggered items: Each half heart used up by activating Sharp Plug triggers damage effects separately, allowing multiple payouts.
  • Keeper Keeper: The Keeper takes only one heart of damage.
    • Added in Repentance Expends health for charges at the rate of 2 charges per 1 Coin Heart. If an item is 1-charge, removes 1 Coin Heart.
  • Added in Afterbirth15►Glowing Hour Glass Glowing Hour Glass: As long as Isaac has more than Removed in Repentance 2 full hearts or Added in Repentance 1.5 hearts, time can be rewinded indefinitely since the health used to recharge the item is refunded upon use.
  • Added in Afterbirth †15►Schoolbag Schoolbag: The active item in the main slot is fully charged as normal and the secondary slot gains as many charges as the main one did.
  • Removed in Repentance 15►The Wafer The Wafer: Reduces the health cost to half a heart (except for Keeper).
  • Added in RepentanceTainted Magdalene Tainted Magdalene: Tainted Magdalene's 15►Yum Heart Yum Heart can be used infinitely, allowing for infinite invincibility frames from taking damage. Paired with Tainted Magdalene's melee attack, this can easily win a run.

Interactions[edit | edit source]

  • 15►9 Volt 9 Volt: Renders the Sharp Plug unusable. Sharp Plug can only be used if the item is at 0 charges, but 9 Volt instantly gives 1 charge to the item upon activation.
    • Added in Repentance As Sharp Plug can now be used with charges and the cost is based on charges filled, 9 Volt now synergizes with Sharp Plug, lowering the cost of using it by half a heart on 2+ charge items.
  • Added in Repentance15►Alabaster Box Alabaster Box: Expends up to 6 full hearts if possible with no charges given.
  • Added in Repentance15►Eraser Eraser: Attempting to recharge the Eraser with the Sharp Plug fails and only hurts Isaac for half a heart.
  • 15►Holy Mantle Holy Mantle: Holy Mantle blocks the damage from Sharp Plug if the shield is active, but also keeps Isaac's active item from charging.
    • Added in Repentance Bypasses the Holy Mantle and gives charges as usual.
  • Removed in Repentance 15►Isaac's Heart Isaac's Heart: Renders the Sharp Plug unusable.
  • The Lost The Lost: No benefit from this item unless he has a respawn item because his active item's charge will not refill if the 15►Holy Mantle Holy Mantle effect activates. Sharp Plug only activates upon receiving actual damage.
    • Added in Repentance No effect, as The Lost doesn't have health.
    • Added in Repentance When turned into The Lost via the white fire, activating Sharp Plug will take the health cost from the original character's health. 15►Holy Mantle Holy Mantle will not block the health cost.
  • Added in Afterbirth15►Mega Blast Mega Blast: Sharp Plug will not work with Mega Blast.
    • Added in Repentance Works as intended, giving 1 charge per half a heart.
  • Added in RepentanceBethany Bethany / Tainted Bethany Tainted Bethany: Soul/blood charges are used before Sharp Plug when available.

In-game Footage[edit | edit source]

Seeds[edit | edit source]

PC BKXE 1ZBZ (First floor Shop; The Wafer and A Quarter in an urn in first-floor treasure room)

PS4 D1JR VDCR (First floor Shop; Secret Room with coins is left of spawn; second floor Treasure Room contains The Wafer.)


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