A Lump of Coal

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Tear appearance
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Added in Afterbirth Afterbirth

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Rebirth

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A Lump of Coal is an unlockable passive item.

Effect[edit | edit source]

  • Tears gain a flat damage bonus based on how far they travel. This starts at +0 and increases to about +6 at a standard room's width (but can go higher).

Notes[edit | edit source]

  • The item has the opposite effect of the item Proptosis Proptosis, which makes Isaac deal more damage at close range.

Synergies[edit | edit source]

  • Afterbirth-exclusive content Continuum Continuum - Combined with a good amount of range or shot speed, tears travel through the room walls back inside and deal even more damage.
  • Hook Worm Hook Worm - The extra distance traveled from zig-zagging increases Coal's damage.
  • The Ludovico Technique The Ludovico Technique: Increases the tear's damage and size the farther the tear is from Isaac. Even at close range it will still do about +3.5 damage.
  • Mom's Perfume Mom's Perfume - Fear shots cause enemies to run away allowing Coal's damage to increase longer.
  • My Reflection My Reflection - Coal's bonus is based on total distance traveled so it does benefit (slightly) from Reflection.
  • Tape Worm Tape Worm - The significant range up increases Coal's damage potential, despite the shot height being halved.
  • Afterbirth-exclusive content Tech X Tech X - Ring size and damage increases as ring travels further from Isaac.
  • Rubber Cement Rubber Cement - It gains more air time with the bouncing, allowing for every bounce to add damage.
  • Soy Milk Soy Milk - Coal's flat damage increase is applied after Soy's reduction, so you'll gain full benefit from Coal.
  • Tiny Planet Tiny Planet - This item drastically increases the screen time of tears because it makes them orbit around Isaac for a few seconds. The character's tears gain about +15 damage for a fully orbited tear.

Interactions[edit | edit source]

  • Anti-Gravity Anti-Gravity - Poor synergy - Despite the fact tears grow in size, they will still only deal bonus damage based strictly on how far they travel. If the enemy hits the tears by running into them, Coal will add no damage no matter how big the tears are.
  • Afterbirth-exclusive content Athame Athame - Damage of the Athame ring is halved.
    • Added in Afterbirth † This bug has been fixed; the ring deals normal damage.
  • Brimstone Brimstone + The Ludovico Technique The Ludovico Technique - Makes the Brimstone circle widen and deal damage based on how far away it is from your character. At very close ranges, damage is reduced to about 73% (unlike normal Coal effects).
  • Brimstone Brimstone - No benefit though the beam color is darker.
    • Added in Afterbirth Beam will gradually increase in size and damage the farther it travels, on a multiplier that is roughly +20% per tile of distance.
  • Afterbirth-exclusive content Diplopia Diplopia - No benefit.
  • Dr. Fetus Dr. Fetus - No benefit though the bombs appear darker.
  • Epic Fetus Epic Fetus - No benefit.
  • Ipecac Ipecac - Benefits exactly like normal tears.
  • Afterbirth-exclusive content Maw of the Void Maw of the Void - Damage of the Maw ring is halved.
    • Added in Afterbirth † This bug has been fixed; the ring deals normal damage.
  • Mom's Knife Mom's Knife - No benefit.
  • Proptosis Proptosis - Proptosis scales with Isaac's damage while the Coal does not. At base damage will approximately break even at any range; with increased damage does more damage up close.
  • Ring Worm Ring Worm, Wiggle Worm Wiggle Worm: No relevant additional benefit (either very minor or none at all).
  • Technology Technology - No benefit.
    • Added in Afterbirth Damage increases the further away the enemy is, on a multiplier that is roughly +20% per tile of distance.
  • Technology 2 Technology 2 - No benefit.
    • Added in Afterbirth Damage increases the further away the enemy is, on a multiplier that is roughly +20% per tile of distance.
  • Afterbirth-exclusive content Tech X Tech X - The laser ring will grow as the ring distances itself from the player, but will shrink as the player approaches it. Damage increases the further away the enemy is.

In-game Footage[edit | edit source]

Trivia[edit | edit source]

  • In Western culture, children are commonly told that if they behave badly during the year, they will receive a piece of coal for Christmas.
    • This makes A Lump of Coal a fitting item for Krampus to drop, based on his origins.


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