Expansion Pack

Expansion Pack is an unlockable trinket added in The Binding of Isaac: Repentance.

Effects

• Upon use of an activated item, activates the effect of another random activated item.
  • The random effect is any activated item with a charge time of 1 or 2 rooms (with the exception of Metronome and D infinity). View the page on activated items for a complete list.
  • Timed-recharge and infinite-use items trigger the effect once per room. Re-entering the room will allow Expansion Pack to trigger again.

Notes

• Effects from one-time-use, timed-recharge, and infinite-use items will not be produced by Expansion Pack.
• Dead Sea Scrolls qualifies for Expansion Pack as its charge time is 2 rooms. This may result in activations of items not normally selectable by Expansion Pack.
• If an item like Bob's Rotten Head or Shoop da Whoop! is selected, firing it will be counted as another item use and activate Expansion Pack a second time.

The Binding of Isaac: Rebirth
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