Rune Bag

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

Effects

 * Drops a random rune every few rooms.
 * If there are no runes unlocked, it will drop cards instead.

Synergies

 * : Increases Rune Bag's size and increases the frequency of runes dropping.
 * : Rune Bag will stay in place relative to Isaac.
 * : Rune Bag and Isaac will occasionally be connected via electricity.

Seeds
9XX3 HWL2 (First Golden Treasure Room)