Ultimate Vault Hunter and Vault progression
Budget Eridium for Weekly Big Encore challenges
Eridium pays for weekly Big Encore challenges, which offer tougher boss fights and rarer loot. Regular boss rematches use…
WHERE & HOW TO FARM
Budget Eridium for Weekly Big Encore challenges
The Weekly Big Encore boss arena shown on the ECHO Map, at Moxxi’s machine near the arena.
Before you go
- Finish the campaign and unlock weekly activities.
- Unlock the featured boss’s arena through its relevant mission.
- Have Eridium for the displayed weekly challenge fee; regular rematches require cash instead.
- Have access to endgame Eridium sources such as UVH1 Vile Bounties if you need to replenish.
Farming steps
- Open the ECHO Map and identify the Weekly Big Encore boss.
- Confirm the boss matches your loot goal and that its arena is unlocked.
- Travel to its arena and find Moxxi’s Big Encore machine.
- Read the activity name and displayed currency cost before starting.
- For the weekly challenge, pay the Eridium fee and defeat the tougher boss.
- Collect and inspect the loot, then decide whether another attempt is worth the cost.
- If your Eridium reserve is low, complete available purple Vile Bounty contracts before returning.
- Treat the listed 100 Eridium as a historical reference, not a fixed price; use the machine’s displayed fee.
- Save Eridium for the weekly challenge when that featured boss is useful to you; choose a regular cash rematch if you only need an unlocked boss retry.
Repeat, collect and use
The weekly Big Encore can be repeated while it remains active and you can pay its displayed Eridium fee. The weekly target rotates. Regular Moxxi rematches are a separate cash-paid activity.
Common mistakes
- Paying cash or Eridium without checking which rematch is selected: verify the activity name and fee at the machine.
- Assuming every Big Encore attempt costs Eridium: regular rematches use cash; the weekly challenge uses Eridium.
- Spending on a featured boss unrelated to your goal: check the ECHO Map before traveling and paying.
When to stop or switch
Stop when you get the drop you want, reach your Eridium budget, or the weekly boss changes. For another unlocked boss, consider its regular cash rematch.
Sources & fact checks
What you can get here
Open a guide to find other locations and see what the item is used for.