Spirit Sword

 

"Divine blade"

Item ID
5.100.579

Item Pool

Angel Room

Collection Grid

(page 5, column 15, row 5)

Unlock Method
Complete Isaac's Awakening (challenge #39)

Spirit Sword is a 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 Heart containers (same rule as regular Challenge 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 and launches a projectile 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.

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 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 blindspot directly in front of the sword.

Synergies

• 20/20/ The Inner Eye/ Mutant Spider/ The Wiz: Isaac spins one additional time for each extra tear, firing extra projectiles on each spin. No effect on the normal swing.
• Cricket's Body: The fired projectile will burst into multiple swords.
• Decap Attack: The body holds the sword while the head will only block projectiles.
• Eye Sore: Random chance to swing extra swords in random directions.
• Godhead: The fired projectile receives Godhead effects.
• Loki's Horns: Random chance to swing a sword in all 4 cardinal directions.
• Lost Contact: Sword swings reflect projectiles.
• Mom's Eye: An additional sword is added to Isaac's back, and can be swung as normal.
• Mom's Knife: When doing the spin attack, Isaac throws the sword a short distance which spins as it travels.
  • Mom's Knife + Technology: A technology laser connects Isaac and the sword while it's being thrown.
  • Mom's Knife + Brimstone: Launches a barrage of knives from Isaac's mouth after doing the spin attack.
• Polyphemus: The sword and fired projectile become gigantic, swing rate and charge time remains the same.
• Rubber Cement: The fired projectile bounces.
• Technology: Sword becomes a lightsaber. Surrounds Isaac with a laser on every swing.
• Technology 2: Sword is additional to the laser and both can be used.
• Trisagion: The fired projectile is a Trisagion blast.

Interactions

• Brimstone: Overridden by Spirit Sword.
• Cursed Eye: Overridden by Spirit Sword.
• Dr. Fetus: Overridden by Spirit Sword.
• Eye of the Occult: The projectile can be controlled.
• The Forgotten: Spirit Sword will only work with The Soul, no changes to The Forgotten.
  • Tainted Forgotten: No effect.
• Incubus: Incubus tears are replaced with a sword, identical to Isaac.
• Kidney Stone: Overridden by Spirit Sword.
• The Ludovico Technique: Overridden by Spirit Sword.
• Tech X: Overridden by Spirit Sword.

Trivia

• The function of this item is a reference to the Master Sword in many The Legend of Zelda games.