Razor Blade

On use, takes one heart of health and grants +1.2 damage for the current room.

Quote

"Feel my pain"

Effects

• On use, takes a full heart of health and grants +1.2 damage for the current room.

Synergies

• The Polaroid - Isaac takes no damage while invincible, allowing for repeated free uses of the item.
• The Wafer - Isaac loses half a heart instead of a full heart.
• Old Bandage - Isaac has a chance to drop a red heart while using the item.
• Shard of Glass - Isaac has a chance to drop a red heart while using the item.
• Whore of Babylon - The Razor Blade can be used to activate this item's effect by doing enough damage to get Isaac down to half a red heart (or one red heart as Eve), providing a big damage boost for the current room at the cost of health.

Found in

• Devil Beggar
• Devil Room