Dark Bum is a familiar in The Binding of Isaac.

Spawns a familiar that follows Isaac and collects red hearts.

For every one and a half red hearts collected, it will spawn one of the following:
• Black Heart (40% chance)
• Card or rune (20% chance)
• Pill (20% chance)
• Blue Spider (10% chance)
• Enemy Spider (10% chance)

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 Super Bum transformation. Collecting 3 items from this set will transform Isaac's bums into Super Bum, a familiar that collects coins, red hearts and keys, and drops twice as many rewards.

Dark Bum 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.

Dark Bum

• Familiar that consumes red heart pickups and drops black hearts, pills, cards, blue spiders, or hostile spiders in return
• Abyss: x1 hungry locust 1.5x Isaac's damage

The following sounds are related to this item.

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