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Clear the final Arbiter for a Legendary reward — guide illustration
Tarya Gratar bosses and Expeditions

Clear the final Arbiter for a Legendary reward

Defeating the Trial’s final boss completes its major encounter and grants a Legendary reward opportunity.

PC / Global, base game; Worldslayer expansion routes labeled
WHERE & HOW TO FARM

Where to farm

Final Trial arena in Tarya Gratar.

This route is for players who want to complete the Trial and claim the final Arbiter’s Legendary reward. The fight requires clearing the route first, so plan for a full Trial run. The final encounter has been documented as offering a guaranteed Legendary, but check the current reward presentation in game.

GET STARTED

How to farm

Before you go

  • Own Worldslayer and finish its campaign to unlock Tarya Gratar.
  • Start a Trial run and reach the final encounter through its route.
  • Bring a build capable of surviving the chosen tier’s arenas and boss.
  1. Start the Trial at a tier that your current gear can handle.
  2. Read the Crossroads map and follow the route toward the final Trial arena.
  3. Clear the required skirmishes and boss rooms along the way.
  4. Use pauses between encounters to check equipment and adjust your approach as needed.
  5. Engage and defeat the final Arbiter.
  6. Collect the reward and inspect the Legendary options presented.
  7. Return to camp, equip the best fit, and use or dismantle other pieces only after checking their mods.

Farming tips

  • If repeated attempts fail before the boss, lower the tier so a complete clear is achievable.
  • A selectable reward is still a choice among offered items; weigh the build benefit of each option.

Repeat, collect and use

The Trial can be started again after a run. Each repeat requires progressing through the route to the final arena; the reward is tied to each completed encounter.

Common mistakes

  • Entering at an unsustainable tier: choose a tier where you can finish the full route.
  • Confusing a reward choice with a guaranteed specific item: select only among what the game offers.
  • Leaving gear unreviewed: compare its mods and attributes before dismantling or replacing equipment.

When to stop or switch

Stop when the offered Legendary no longer improves your character, or switch to a slot Trove if you need a more focused armor target.

Sources & fact checks
REWARD DETAILS & CONDITIONS

Sources & rewards

Farming route

Clear the final Arbiter for a Legendary reward

Final Trial arena in Tarya Gratar.

  • Own Worldslayer and finish its campaign to unlock Tarya Gratar.
  • Start a Trial run and reach the final encounter through its route.
  • Bring a build capable of surviving the chosen tier’s arenas and boss.
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