Lead Pencil is a passive item added in The Binding of Isaac: Afterbirth †.
Effects
- After every 15 tears fired, Isaac will fire a low range Monstro's Lung -like barrage of 12 tears.
Tears in the barrage deal double damage.
- Tears will fire only from Isaac's right eye.
Tears in the barrage deal double damage.Notes
- Lead Pencil gives characters other than Cain the same special properties that he has when it comes to one-eye items like Blood Clot.
- Tears fired from items that cause multiple tears to be fired at once e.g. 20/20, Monstro's Lung, etc. are counted.
Synergies
- Compound Fracture/Cricket's Body/The Parasite: All tears from the barrage split.
- Haemolacria: Fires a barrage of Haemolacria tears, all of which will burst.
- Lachryphagy: Tears tend to clump together, becoming one giant tear which splits into 8 large tears. When tears burst, they can also spawn barrages of tears that can be fed.
- Pop!: Causes burst tears to remain in the room for much longer, forming a soft barrier of sorts, which enemies must survive through to reach Isaac.
- Trisagion: Fires a barrage of beams.
Interactions
- Brimstone: Overrides Lead Pencil.
- The effect from Lead Pencil fires as separate tears from Brimstone.
- Dr. Fetus: Overrides Lead Pencil.
- The Lead Pencil tears fire alongside the bombs.
- Epic Fetus: Overrides Lead Pencil.
- Lilith: No effect, as Lilith is inherently Blindfolded.
- Loki's Horns: Lead Pencil can fire in any of the cardinal directions if it fires at the same time as Loki's Horns.
- The Ludovico Technique: The tear blinks red, but the effect is entirely cosmetic.
- Incubus: Fires red tears like Blood Clot with Cain, but without increased damage.
- Mom's Knife: Overrides Lead Pencil.
- A barrage of tears is fired alongside Mom's Knife every 15 Knife throws.
- Technology: Overrides Lead Pencil.
- A barrage of tears is fired alongside Technology every 15 shots.
- Technology 2: Overrides Lead Pencil and disables normal tears entirely, even if not playing as Cain.
- Tech X: Overrides Lead Pencil.
- Tiny Planet: The burst follows Tiny Planet's circular trajectory with minimal range, hitting the ground almost immediately.
The effect from Lead Pencil fires as separate tears from 
In-game Footage
Trivia
- Though the pencil is in Isaac's right eye, it blocks tears from firing out of his left eye.
Seeds
Switch R69K WMVV (Treasure room adjacent to spawn)
 The Binding of Isaac: Rebirth
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