???'s Only Friend - The Binding of Isaac

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???'s Only Friend is an unlockable familiar in The Binding of Isaac.

Spawns a familiar that can be controlled with the shooting buttons and deals contact damage to enemies.

The familiar deals 3.5 damage per tick (15 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.

Complete Boss Rush as ???.

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.

???'s Only Friend can be found in the following item pools:

Name	Weight
Treasure Room	1.0/1.0
Key Master	1.0/1.0
Greed Treasure Room	1.0/1.0
Baby Shop	1.0/1.0

The following tags are applied to this item:

Id	Description
summonable	Can be summoned via Lemegeton.
monstermanual	Can be summoned via Monster Manual.
offensive	Can appear for Tainted Lost.
fly	Contributes towards the Beelzebub transformation.

The following special synergies and interactions for ???'s Only Friend have been documented.

Mod	Item	Synergy
---	BFFS!	×2 damage.

* 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.

???'s Only Friend

• Controllable familiar that deals contact damage
• Abyss: x1 locust .75x Isaac's damage