Rune Bag

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Rune   Bag
Item icon
Item altar
"Rune generator"
Table dividing line 1.png
Item ID
5.100.389
Table dividing line 2.png
Table dividing line 3.png
Collection Grid
Added in Afterbirth † / Removed in Repentance(page 4, column 4, row 2)
Removed in Afterbirth †(page 4, column 4, row 2)
Added in Repentance(page 4, column 5, row 2)
Unlock Method
Rune Bag Defeat Isaac as Lilith
Added in Afterbirth

Rune Bag is an unlockable passive item added in the Binding of Isaac: Afterbirth expansion.

Effects[edit | edit source]

  • Spawns a familiar that drops a random rune alternatingly every 5 or 6 rooms.
    • If there are no runes unlocked, it will drop cards instead.

Synergies[edit | edit source]

  • 15►BFFS! BFFS!: The familiar drops runes alternatingly every 4 or 5 rooms.

In-game Footage[edit | edit source]

Seeds[edit | edit source]

Switch Greed mode only 9XX3 HWL2 (First Golden Treasure Room)


Lilith Unlocks Lilith Unlocks Lilith Unlocks
Added in Afterbirth Added in Afterbirth † Added in Repentance
IncubusBox of FriendsBig BabyRune BagCambion ConceptionSerpent's KissSuccubusImmaculate ConceptionGoat Head BabyDark Baby EuthanasiaDuality Blood PuppyC SectionThe Harlot
The Binding of Isaac: Rebirth The Binding of Isaac: Rebirth The Binding of Isaac: Rebirth
Achievements Achievements Attributes Attributes Bosses Bosses TarotCard.png Cards and Runes Challenges Challenges Chapters Chapters
Characters Characters MainPageBabies.png Co-op Items Items Item pools Item pools Monsters Monsters Objects Objects
Pickups Pickups Pills Pills Rooms Rooms Seeds Seeds Transformations Transformations Trinkets Trinkets
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