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Razor Blade item

Razor Blade is an unlockable active item in The Binding of Isaac.

Description

+1.2 damage for the current room.
-1 full red heart.

Subsequent uses in the same room will deal only half a heart of damage.

Note

This page shows the latest information as of the new Repentance+ (Online Co-op) DLC.
To see information about this item for the previous Repentance version, check this page instead.

How to unlock?

Defeat Satan as Eve.

Item pools

Razor Blade can be found in the following item pools:

Name Weight
Treasure Room
1.0/1.0
Demon Beggar
1.0/1.0
Curse Room
1.0/1.0
Greed Treasure Room
1.0/1.0
Greed Curse Room
1.0/1.0

Tags

The following tags are applied to this item:

Id Description
nolostbr Unavailable for The Lost after obtaining Birthright.

Special synergies

The following special synergies and interactions for Razor Blade have been documented.

Mod Item Synergy
--- Book of Virtues Spawns red wisps in the middle ring that have 8 HP.
--- The Book of Belial combined with Judas' Birthright Activates the effects of The Necronomicon alongside the original effect.

* Note that not all possible synergies and interactions are listed here.

External links