Binding of Isaac: Rebirth Wiki

Luck Stat Icon.png Luck affects a variety of chance-based effects and is represented by a 3-leaf clover.

The large majority of characters have a base Luck of 0. The following characters are exceptions:

Character Luck
Keeper Keeper Dead Tainted Lazarus Dead Tainted Lazarus Tainted Keeper Tainted Keeper -2
Lazarus Lazarus Esau Esau -1
Jacob Jacob 1
  • Eden Eden and Tainted Eden Tainted Eden: varies between -1 and 1, inclusive (including decimal values).
  • Cain Cain's base Luck is technically 0, but he starts with Lucky Foot Lucky Foot, increasing his luck to 1.

Effects of Luck[]

Luck influences many different elements:

  • Room drops: For calculating room drops, luck is capped between 0 and 10, with higher luck not only resulting in higher amounts of drops but also higher quality drops such as chests.
    • Room drop rates are otherwise identical in Normal and Hard game modes, but Hard mode removes Removed in Repentance 66%/Added in Repentance 33% of heart-type drops, replacing them with nothing.
    • Added in Repentance For Jacob and Esau, the room drop rate depends on the total luck the 2 characters have.
  • Tear effect chance: The chance of shooting tears with status effects becomes more likely as Luck goes up. This scales up to 100% chance per tear in most cases with enough Luck.
    • Most of the status inflicting effects require high Luck to activate on every tear.
      • Since these effects persist on the enemies for a set amount of time regardless of the Tears stat, a fast rate of fire is often enough to affect an enemy indefinitely.
    • Certain tear effect chances scale linearly with luck, while others scale exponentially with luck, meaning that it can take a lot of luck to notice a significant increase in activation rates.
    • Tear items affected by Luck are:
    • Trinkets affected by Luck are:
    • Other items affected by Luck include:
      • Added in Afterbirth †Broken Modem Broken Modem: Higher luck increases the rate of freezing enemies and their shots.
      • Celtic Cross Celtic Cross: The Celtic Cross grants its invulnerability more often with higher Luck, topping out at 100% at 27 Luck.
      • Gimpy Gimpy: The Soul Heart/Black Heart drop chance upon taking damage increases with higher Luck, topping out at 50% at 22 Luck.
      • Midas' Touch Midas' Touch: Poops generated by Isaac's actions have a chance to turn into Golden Poop, starting at 10% with 0 Luck up to 100% at 18 Luck.
      • Added in Afterbirth †Mystery Gift Mystery Gift: Higher luck results in a lower chance of getting The Poop The Poop or A Lump of Coal A Lump of Coal.
      • Old Bandage Old Bandage: The Red Heart drop chance when you take a hit increases with higher Luck, topping out at 50% at 29 Luck.
      • Virgo Virgo: The shield activation chance increases with Luck, topping out at 100% at 10 Luck.

However, Luck doesn't affect:

Items that affect luck[]

Activated Items[]

Name ID Icon Quote Description Added in Repentance Quality
Added in Afterbirth Mom's Box 5.100.439
Mom's Box
4 rooms
What's inside? Increases luck by 1 and doubles the effects of trinkets while held. When used, drops a random trinket on the ground. 3
Added in Afterbirth † Dataminer 5.100.481
4 rooms
109 Displaces enemy sprites for the current room, randomly increases one stat and decreases another. 0

Passive Items[]

Name ID Icon Quote Description Added in Repentance Quality
Latch Key 5.100.343 Latch Key Luck up Grants 1 Soul Heart and +1 luck. Spawns 2 Keys. 2
Lucky Foot 5.100.46 Lucky Foot Luck up +1 luck. Increases chance of winning Shell Games and Fortune Tellers (independent from the luck stat).
Added in Repentance Converts all bad pills into good pills, without identifying them.
Magic Scab 5.100.253 Magic Scab HP + luck up Grants one full Red Heart container, +1 luck. 2
Missing No. 5.100.258 Missing No. Syntax error Randomizes all passive items and stats upon pickup and at the start of each succeeding floor. 1
Added in Afterbirth Mom's Pearls 5.100.355 Mom's Pearls Range + luck up +1.25 range, +0.5 tear height, +1 luck. Added in Repentance Grants one Soul Heart. 2
Added in Afterbirth † YO LISTEN! 5.100.492 YO LISTEN! Yo listen! +1 luck. Spawns a fairy familiar that points out Secret Room Secret Rooms, Crawl Space Crawl Space entrances, and tinted rocks. 2
Added in Repentance Candy Heart 5.100.671 Candy Heart Power of love Gives Isaac a permanent stat boost whenever he heals with Red Heart Red Heart pickups. 2
Added in Repentance Evil Charm 5.100.632 Evil Charm Luck up + you feel protected Increases luck by 2.0. Provides immunity to burn, confusion, fear, and poison. 2
Added in Repentance Glass Eye 5.100.730 Glass Eye DMG + luck up +0.75 damage, +1 luck. 3
Added in Repentance Sausage 5.100.669 Sausage All stats up Adds a Red Heart Container, fully heals Isaac, and gives +0.2 Speed, +0.5 Damage, +0.5 Tears, +1.5 Range, +0.2 Shot Speed, and +1.0 Luck. Increases the chance of encountering a Devil Room Devil Room, Angel Room Angel Room, and/or Planetarium Planetarium each by 6.9%. 3
Added in Repentance Sol 5.100.588 Sol Radiant victory Reveals the location of the Boss room. Upon defeating a boss, activates XIX - The Sun XIX - The Sun, fully recharges Isaac's active item, grants bonus damage and luck for the rest of the floor, and removes curses. 2
Added in Repentance Soul Locket 5.100.686 Soul Locket Power of faith Gives Isaac a permanent stat boost whenever he picks up a soul heart. 2


Name ID Icon Quote Description
Lucky Toe 5.350.42 Lucky Toe Luck up! +1 Luck. Adds a chance to drop an extra pickup when opening a Chest Chest, destroying a machine, or blowing up a tinted rock.
Added in Repentance Perfection 5.350.145 Perfection Luck way up. Don't lose it! +10 Luck. If Isaac takes damage, the trinket is destroyed and its effect is removed.


  • "Luck Up" pills increase luck by 1, and "Luck Down" pills decrease luck by 1.
  • Putting a coin in the Donation Machine has a small chance to increase luck by 1.
  • Added in Afterbirth Lucky Penny Lucky Pennies increase luck by 1.
  • Added in Afterbirth In co-op, Green Baby will occasionally briefly increase luck by 2. Dark Baby will occasionally briefly increase all stats, including luck.