Binding of Isaac: Rebirth Wiki

Habit is a passive item.


  • When Isaac is hit, his active item gains 1 room's worth of charge.


  • 9 Volt 9 Volt + Yum Heart Yum Heart: Isaac could potentially become invincible on early floors or with The Wafer The Wafer, losing only half a heart per three hits taken.
  • The Battery The Battery + Added in Repentance Sharp Plug Sharp Plug: Isaac gains one charge from Habit for every half-heart of damage that Sharp Plug deals, effectively granting double the charges when using Sharp Plug.
  • Added in Afterbirth †Dull Razor Dull Razor + Added in Afterbirth †Schoolbag Schoolbag: Using the Dull Razor activates the Habit, but this does not restore its charge, only that of the item in the Schoolbag.
  • Added in RepentanceLarynx Larynx: Both on-hit charge effects stack, granting Larynx 2 charges per hit.


  • Added in Repentance Added in AfterbirthGlass Cannon Glass Cannon: Upon taking damage, Added in RepentanceBroken Glass Cannon Broken Glass Cannon will be half-charged. However, taking damage before the last charge will break the cannon again.
  • Habit Habit Duplicates: Doesn't stack; will still yield one charge per hit.

In-game Footage[]


  • The Habit was significantly nerfed from the previous game. In the original game, it would restore half of Isaac's item's required charge rather than just one room's worth of charge. This could essentially make Isaac unkillable if it was used in conjunction with Yum Heart Yum Heart, The Nail The Nail, or Book of Revelations Book of Revelations and The Wafer The Wafer for The Womb Womb and beyond.
  • This item is used in When Life Gives You Lemons (challenge #12).