Athame is an unlockable passive item in The Binding of Isaac, added in the Afterbirth DLC.

Killing an enemy has a luck-based chance to spawn a black Brimstone ring that deals Isaac's tear damage to everything it touches, 15 times per second.

Enemies killed by the ring have a chance of spawning another ring, starting at 25% with 0 luck, and going up to 100% with 30 luck.

The ring lasts for 2 seconds and inherits Isaac's tear effects.

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.

Defeat Hush as Eve.

Athame can be found in the following item pools:

The following tags are applied to this item:

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.

Athame

• Chance to spawn a high damage ring when killing an enemy
• Chance increases with luck
• Abyss: x1 void locust 1.5x Isaac's damage

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