Combat challenge
Fight Cave Guide
Quick answer
The Fight Cave is an Umbral Sands combat challenge at the end of the region questline. Clearing it earns the right to challenge Fuzan, and the activity can be repeated for additional rewards including rare materials.
Before entering
- Finish required region quests before assuming the arena is available.
- Repair your primary weapon and armour.
- Bring food, drink and a backup damage option.
- Clear unnecessary inventory slots for rewards.
- Set a nearby recovery route before the attempt.
Fight Cave versus Nightmare Crucible
These are separate Umbral Sands activities. The Fight Cave gates the Fuzan confrontation. The Nightmare Crucible is a boss-rush style challenge unlocked with Engrams and rewards Ascension Cores. Searching for one activity should not land players on a generic dungeon page that merges both progression paths.