Mom's Razor is a familiar in The Binding of Isaac, added in the Afterbirth+ DLC.

Spawns an orbiting razor familiar that blocks shots and deals contact damage to enemies equal to 20% of Isaac's damage 7.5 times per second (150% per second).

The razor also makes enemies bleed for 5 seconds, taking damage at a rate that scales with their movement speed. The faster an enemy is moving, the faster it will take damage. These enemies will also leave behind red creep that damages other enemies for 2 ticks per second at a rapid rate.

Enemies that are standing still don't receive the extra damage.

The amount of damage dealt per tick is equal to 2.8 + 0.3 × CurrentFloor.

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.

This item contributes towards the Yes Mother? transformation. Collecting 3 items from this set will give Isaac a stationary knife that trails behind him and deals 2x contact damage.

Mom's Razor can be found in the following item pools:

The following tags are applied to this item:

The following special synergies and interactions for Mom's Razor have been documented.

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

Below is the Internal Item Description as shown in-game.
Note that some stat changes are not displayed here. Please see the main description for the full effects.

Mom's Razor

• Orbital familiar that blocks enemy shots, deals contact damage and applies a bleed effect to enemies it touches
• Bleeding enemies take damage over time based on their movement speed, and leave trails of damaging red creep
• Abyss: x1 bleeding locust .75x Isaac's damage

• Check out the item description on the external Isaac Wiki.