Obsessed Fan is a familiar in The Binding of Isaac, added in the Afterbirth DLC.

Spawns a fly familiar that follows Isaac's movement with a 0.66 second delay, dealing 2 damage per tick (30 per second).

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 Beelzebub transformation. Collecting 3 items from this set will grant Isaac flight, converts small enemy flies into Blue Flies, and permanently charms larger enemy flies.

Obsessed Fan can be found in the following item pools:

The following tags are applied to this item:

The following special synergies and interactions for Obsessed Fan 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.

Obsessed Fan

• Fly familiar that follows Isaac's movements on a delay
• Deals contact damage
• Abyss: x1 locust .5x Isaac's damage

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