Lil Portal is an unlockable familiar in The Binding of Isaac, added in the Repentance DLC.

Spawns a familiar that follows Isaac and launches itself in the direction Isaac is shooting, and deals contact damage to enemies.

The familiar will consume pickups and trinkets in its path, converting them into Blue Flies and increasing its size.

Damage dealt by the familiar is equal to 2 × ConsumablesDestroyed + 2 per tick, ticking up to 10 times per second.

Consuming 4 pickups will summon a portal that leads to an unexplored room, and will reset its damage. Portals persist after leaving the room.

The familiar does not deal damage or consume pickups while following behind Isaac.

This page shows information as of the latest Repentance release.
To see latest up-to date information about this item for the new Repentance+ (Online Co-op) DLC, check this page instead.

Defeat Mother as Apollyon.

Lil Portal can be found in the following item pools:

The following tags are applied to this item:

The following special synergies and interactions for Lil Portal have been documented.

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

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