Binding of Isaac: Rebirth Wiki
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(in Repentance)

Spirit Sword is an unlockable passive item added in The Binding of Isaac: Repentance.

Effects[ | ]

  • Replaces Isaac's tears with a sword he can swing in front of him.
    • The swing does 3x Isaac's damage +3.5 and deals knockback to both enemies and Isaac if it hits.
    • The sword can be swung as rapidly as the fire button can be tapped.
    • The sword swing can collect pickups.
  • If Isaac's total health is equal to or greater than his number of Red HeartRed Heart Containers (same rule as regular Challenge RoomChallenge Rooms), the sword fires a projectile when swung.
    • The projectile deals damage equal to Isaac's damage +2, and has a cooldown equal to 2x Isaac's normal tear rate.
  • Holding an attack button charges a spin attack, ready when the sword flashes, which damages all enemies around Isaac. It also deflects enemy projectiles, which can damage enemies who get hit, and launches a projectile with higher shot speed regardless of Isaac's current health.
    • The circular swing deals 8x Isaac's damage +10, and the projectile created from it deals 4x Isaac's damage +4.
    • The charge time is based on Isaac's tears stat, at ~4x Isaac's normal tear rate.
    • While charging, the sword will damage the first enemy that contacts it. This will cancel the spin attack.

Notes[ | ]

  • Unlike most charge attacks, the direction of the attack can't be changed by pressing and holding a different attack button then releasing the old one. Instead, it will stay pointing the same direction until all attack buttons are released, either doing nothing or using the spin attack, or the sword touches and damages an enemy, dealing sword slash damage.
  • Spirit Sword can be used to open Spiked ChestSpiked Chests and Mimics without taking damage.
  • Range upgrades move the hitbox of the sword forwards, including the spin attack. Enough range upgrades can leave a large blind spot directly in front of the sword.
  • Only the projectile and spin attack are affected by tear rate, not the normal sword swing, meaning that items that increase damage but decrease tear rate, such as Collectible Polyphemus iconPolyphemus and Collectible Eve's Mascara iconEve's Mascara, are much more effective when only using the swing. Additionally, items that do the inverse, such as Collectible Soy Milk iconSoy Milk and Collectible Almond Milk iconAlmond Milk; are not as effective when only using the swing.
  • Spirit Sword will deflect Boss Mother secondphase ingameMother's Fistula attack and will send it right back at her, entering a short sequence that allows to deal bonus damage, if executed correctly; see this page for more details.
  • Spirit Sword is overridden by the Blindfolded effect, as seen while playing as Character Lilith iconLilith or in challenges like Cat Got Your Tongue (challenge #8).
  • Having 30 tears performs the swing attack automatically.

Synergies[ | ]

  • Collectible 20 20 icon20/20/ Character Keeper iconKeeper/Collectible The Inner Eye iconThe Inner Eye/Collectible Mutant Spider iconMutant Spider/ ConjoinedConjoined: Isaac spins one additional time for each extra tear, firing extra projectiles on each spin. No effect on the normal swing.
  • Collectible Cain's Other Eye iconCain's Other Eye: The eye holds its own sword that slashes in random directions whenever Isaac attacks.
  • Collectible C Section iconC Section: C Section has priority. Fetuses hold small swords and perform the charged spin attack as they travel.
  • Collectible Cricket's Body iconCricket's Body: The fired projectile will burst into multiple swords.
  • Collectible Decap Attack iconDecap Attack: The body holds the sword while the head will only block projectiles.
  • Collectible Euthanasia iconEuthanasia: Each swing of the sword has a chance to do 3x damage and instantly kill a non-boss enemy, causing a tear explosion.
  • Collectible Evil Eye iconEvil Eye: The fired eyes swing a miniature Sword instead of tears.
  • Collectible Eye Sore iconEye Sore: Random chance to swing extra swords in random directions.
  • Collectible Haemolacria iconHaemolacria: Sword becomes larger. The projectile is now fired in an arc and splits on collision with enemies and obstacles.
    • Haemolacria + Collectible Brimstone iconBrimstone: Arcing sword beams burst into Brimstone lasers in random directions.
  • Collectible Holy Light iconHoly Light: Both the sword swing and the projectile can trigger Holy Light.
  • Homing tears (e.g. Collectible Spoon Bender iconSpoon Bender): The projectile will be homing.
  • Collectible Isaac's Tears iconIsaac's Tears: The item fires normal tears but can be charged as fast as the sword can be swung. Doing a spin attack will fully charge Isaac's Tears.
  • Collectible Lachryphagy iconLachryphagy: The fired projectiles will combine and split.
  • Collectible Loki's Horns iconLoki's Horns: Random chance upon swinging to have a sword in all 4 cardinal directions. Performing a spin attack when this occurs results in a 4-way spin.
  • Collectible Lost Contact iconLost Contact: Sword swings reflect projectiles.
  • Collectible Maw Of The Void iconMaw Of The Void: An additional ring will appear upon fully charging it. Spin is delayed by a bit.
  • Collectible Mom's Eye iconMom's Eye: An additional sword is added to Isaac's back, and can be swung as normal.
  • Collectible Mom's Knife iconMom's Knife: When doing the spin attack, Isaac throws the sword a short distance, which spins as it travels.
    • Mom's Knife + Collectible Technology iconTechnology: A technology laser connects Isaac and the sword while it's being thrown.
    • Mom's Knife + Collectible Brimstone iconBrimstone: Launches a barrage of knives from Isaac's mouth after doing the spin attack.
    • Mom's Knife + Collectible Tech X iconTech X: Full charge launches a sword surrounded by Tech X that swings back to Isaac.
  • Collectible My Reflection iconMy Reflection: The fired projectile will return to Isaac.
  • Collectible Polyphemus iconPolyphemus: The sword and fired projectile become gigantic. Charge time is increased, but swing rate remains the same. Swings will also shake the screen.
  • Collectible Proptosis iconProptosis: The swing attack deals 9x Isaac's damage instead of 3x. Fired projectiles behave as expected.
  • Collectible Rubber Cement iconRubber Cement: The fired projectile bounces.
  • Collectible Technology iconTechnology: Sword becomes a lightsaber. Surrounds Isaac with a laser on every swing. Enemy projectiles are deflected by both normal and charged attacks.
  • Collectible Technology 2 iconTechnology 2: Laser fires when the sword is being swung or charged.
  • Collectible Trisagion iconTrisagion: The fired projectile is a Trisagion blast.
  • Collectible The Wiz iconThe Wiz: Beams and sword swings are fired straight instead of diagonally. Isaac spins an additional time on a charged attack.

Interactions[ | ]

Overridden by Spirit Sword:

Other interactions:

  • Collectible Anti-Gravity iconAnti-Gravity: Sword beams are affected normally by Anti-Gravity. Regular sword swipes are unaffected, but spin attacks freeze for a short time before firing.
  • Collectible Blood Clot iconBlood Clot/Collectible Chemical Peel iconChemical Peel: Sword swing has a 50% chance to become red and deal increased damage.
  • Collectible Chocolate Milk iconChocolate Milk: Increased knockback when fully charged, no effect on the regular sword swings.
  • Collectible Death's Touch iconDeath's Touch: Visual effect overridden by Spirit Sword including the ranged attack.
  • Collectible Explosivo iconExplosivo: The sword swing has a chance to stick Explosivo shots to enemies it hits. The beam can stick to enemies and explode.
  • Collectible Eye of the Occult iconEye of the Occult: The projectile can be controlled.
  • Collectible Fire Mind iconFire Mind: Sword strikes and beams can burn enemies, and beams have a chance to explode.
  • Character The Forgotten iconThe Forgotten: Spirit Sword will only work with The Soul, no changes to The Forgotten.
  • Collectible Gello iconGello/ Character Tainted Lilith iconTainted Lilith: The sword is held by the fetus.
  • Collectible Godhead iconGodhead: The fired projectile receives Godhead effects. No effect on the swing aside from stat changes.
  • Collectible Incubus iconIncubus: Incubus tears are replaced with a sword, identical to Isaac.
  • Collectible Ipecac iconIpecac: Sword beams are exploding shots that deal Isaac's damage. Does not apply Ipecac's +40 damage modifier to beams or sword swings.
  • Collectible Jacob's Ladder iconJacob's Ladder: Both the sword shots and sword swings create electricity.
  • Character Jacob and Esau iconJacob and Esau: Knockback from the sword will separate the brother carrying the sword from the other.
  • Collectible The Ludovico Technique iconThe Ludovico Technique: Overridden by Spirit Sword. Prevents the standard swing from being able to fire a projectile.
  • Collectible Marked iconMarked/Collectible Tractor Beam iconTractor Beam: Overridden by Spirit Sword. Stat upgrades still apply.
  • Collectible Mysterious Liquid iconMysterious Liquid: The charged sword attack spawns creep, the projectiles do not.
  • Collectible Playdough Cookie iconPlaydough Cookie: Every sword swing gains a different color and effect based on that color.
  • Collectible Pupula Duplex iconPupula Duplex: No effect.
  • Collectible Sinus Infection iconSinus Infection: The sword swing has a chance to stick boogers to enemies it hits. The beam can stick to enemies.
  • Collectible Sulfur iconSulfur: Overridden by Spirit Sword. Damage up on second and subsequent uses while in the same room still applies.
  • Character Tainted Forgotten iconTainted Forgotten: No effect.
  • Collectible Tech.5 iconTech.5: Fires as normal while charging and swinging the sword.
  • Collectible Technology Zero iconTechnology Zero: Sword shots are connected with electricity, swings are unaffected.
  • Collectible Terra iconTerra/Collectible Sulfuric Acid iconSulfuric Acid: Only the sword's beams can destroy rocks.

In-game Footage[ | ]

Trivia[ | ]

  • Spirit Sword is from the Antibirth mod. It was available from the start.
  • The item's name is a reference to the Sword of the Spirit, one of the many armaments that make up the Armor of God. This is further supported by the fact that it is an Angel Room item.
  • The function of this item mimics the Swords in many The Legend of Zelda games, particularly those that play top-to-bottom, such as A Link to the Past.
    • The sword's name is likely a homage to the Master Sword, which first appeared in A Link to the Past.
  • The sword becoming a lightsaber when combined with Collectible Technology iconTechnology is a reference to Star Wars.
  • This item is used in Isaac's Awakening (challenge #39).
  • Spirit Sword is the only item in the game that can override Collectible Epic Fetus iconEpic Fetus.
  • Although this item is normally only available in the Angel RoomAngel Room, it can be found as one of the Nintendo-themed Treasure RoomTreasure Room items in the 6th of December's Daily Run, which is an homage to the late CEO of Nintendo, Satoru Iwata.

Bugs[ | ]

Bug Bug! When reaching 30.00 Tear Rate or higher, Spirit Sword will continuously use the spin attack, only stopped by holding down a fire key. This is likely due to the fact that starting at 30.00 Tear Rate, the internal number is "0", and begins to go negative beyond that.
Bug Bug! In waterlogged rooms, the reflection of the sword swings in the opposite direction of the actual sword, when it should swing in the same direction.


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