Binding of Isaac: Rebirth Wiki
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(except in Rebirth)
This article is about the item. For the challenge, see Glass Cannon (Challenge).

Glass Cannon is an activated item added in The Binding of Isaac: Afterbirth.

Effects[ | ]

  • Fires a single high-damage piercing tear which can travel over obstacles.
    • The damage dealt by this tear is ten times Isaac's damage, plus a flat 10 damage.
    • The shot has an additional 1.5x size multiplier on top of damage-increased size.
  • (except in Repentance) Sets Isaac's health to half a heart with each use (half a Soul Heart if these are present but there are no Red Heart containers). This also removes any other Soul HeartSoul Hearts or Black HeartBlack Hearts, but not Eternal HeartEternal Hearts.
    • (in Afterbirth †) If Isaac has no Red Hearts and at least one Bone HeartBone Heart, only an empty Bone Heart remains.
  • (in Repentance) Upon taking damage, this item turns into Collectible Broken Glass Cannon iconBroken Glass Cannon, and Isaac will lose an additional 2 hearts of health on top of the damage he already took. Isaac gains 1.5 range and leaves a trail of red creep behind him for the rest of the current room, identical to the effects of Collectible Anemic iconAnemic.
    • If the damage from breaking Glass Cannon would result in death, Isaac will remain at half a heart, gaining half a soul heart if necessary. This does not apply if the damage Isaac took would be lethal before the extra damage is taken.
    • The damage from breaking Glass Cannon does not count as self-damage and will result in losing Angel/Devil Room chance if it is taken to Red Hearts.
    • Self-damage (e.g. from Blood Donation MachineBlood Donation Machines or Sacrifice Rooms) will not break Glass Cannon.

Notes[ | ]

  • Glass Cannon can be fired diagonally, (in Afterbirth † and Repentance)even without Collectible Analog Stick iconAnalog Stick.
  • Shooting the Glass Cannon gives a slight knockback effect to Isaac, which can be dangerous in rooms with obstacles like spikes or Fire Places.

Synergies[ | ]

  • (in Repentance) Collectible The Book of Belial iconThe Book of Belial + Collectible Birthright iconBirthright as Character Judas iconJudas / Character Dark Judas iconDark Judas: Grants Judas +2.67 damage up while Glass Cannon is broken.
  • (in Repentance)Collectible Book of Virtues iconBook of Virtues: Spawns white wisps on the middle ring. The wisps shatter in one hit and their tears deal 8 damage per shot, but if one of the wisps is destroyed, all the others are also destroyed. Does not affect wisps other than ones made by this item. Despite Glass Cannon having a timed charge, the wisps persist between rooms.
  • (except in Repentance) Collectible Chocolate Milk iconChocolate Milk: The current charge of Chocolate Milk affects Glass Cannon.
  • (in Afterbirth † and Repentance)Collectible Compound Fracture iconCompound Fracture / Collectible Cricket's Body iconCricket's Body / Collectible The Parasite iconThe Parasite: Tears fired by Glass Cannon will split.
  • Collectible Godhead iconGodhead: Creates a giant aura around Glass Cannon tears that almost fills up normal sized rooms.
  • (in Afterbirth † and Repentance)Collectible Lachryphagy iconLachryphagy: Glass Cannon will fire giant Lachryphagy tears. Tears are harder to feed as they will burst very quickly but they can be fed if you fire tears beforehand and then fire Glass Cannon into those tears.
  • Collectible Multidimensional Baby iconMultidimensional Baby: The Glass Cannon tears will be doubled by Multidimensional Baby.
  • Collectible Mysterious Liquid iconMysterious Liquid: Creates a large pool of creep when tears land.
  • Collectible Tiny Planet iconTiny Planet: Tears produced by Glass Cannon will orbit Isaac.
  • Collectible Lost Contact iconLost Contact: The Glass Cannon tears can block enemy shots.

Interactions[ | ]

In-game Footage[ | ]

Trivia[ | ]

  • Glass Cannon is a term used in video games for a character or entity that deals high amounts of damage but has very low defense.

Bugs[ | ]

Bug Bug! (except in Repentance) Glass Cannon can be used to steal Devil Room items by using it to set your health to (in Rebirth and Afterbirth) half of a Soul Heart or (in Afterbirth † and Repentance) no health at all before you die. In the latter case, picking up any item that isn't a health upgrade will kill Isaac.
Bug Bug! (in Repentance) If Character Tainted Forgotten iconTainted Forgotten takes damage with the cannon held above his head, he will be unable to fire and unable to attack. Exiting and continuing will fix this.


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