Nightmare Boss
Group altar purification for Nightmare progression
Coordinate altar clears with other players to contribute effectively to the shared Nightmare progression.
WHERE & HOW TO FARM
Group altar purification for Nightmare progression
Corrupted altar summons in the active Monoliths of Madness zone.
Before you go
- Level 20 or higher and campaign access to the active region.
- The correct lure count for the selected altar: three Lesser for the first or three Greater for the second.
- Nearby players or a group willing to fight the summon.
Farming steps
- Confirm the active region and locate its corrupted altar objective.
- Check your inventory for the altar’s required lure tier and quantity.
- Ask nearby players to join or join an existing group before activating.
- Use the altar to summon the nightmare encounter.
- Fight the summon while following its visible combat cues and supporting the group.
- Complete the purification and collect Shards and any displayed lure reward.
- Check the event interface to confirm your contribution to Nightmare progression.
- Coordinate the first and second altar attempts so players know which lure tier is needed.
- Altar purification is a high-value shared-progress activity; use it during the active zone week.
Repeat, collect and use
Repeat while altars and lures are available in the active region. The region rotation limits access; this is not an always-available global encounter.
Common mistakes
- Activating before assembling help: gather players first for the summon.
- Bringing the wrong lure tier: verify the altar number and item name.
- Leaving without collecting credit: confirm Shards and shared bar progress in the interface.
When to stop or switch
Stop when the intended altar reward is credited and the shared bar reflects contribution; switch to another event objective if no further lures remain.
Sources & fact checks
What you can get here
Open a guide to find other locations and see what the item is used for.