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Memorial Arena eight-clear Crystal milestone — guide illustration
Recurring weekly rewards

Memorial Arena eight-clear Crystal milestone

Earn the Memorial Arena challenge-clear Crystal reward by reaching its weekly boss-clear milestone.

PC / Global English client; v9.1 live October 22, 2026
WHERE & HOW TO FARM

Where to farm

Challenge > Memorial Arena > current weekly boss lineup and challenge-clear rewards.

Memorial Arena has two reward tracks: challenge-clear rewards and ranking rewards. This route targets the documented 100-Crystal reward for clearing eight boss difficulties during the weekly lineup. The needed clears can be distributed across the available bosses and difficulty tiers, so check your progress in the current event rather than aiming for a fixed boss sequence. Ranking placement is a separate reward track and is not required for this clear milestone. After each successful clear, claim the challenge reward when the interface makes it available. The lineup changes, and the number of bosses depends on account level, so use the current lineup and its displayed progress to plan the remaining clears.

GET STARTED

How to farm

Before you go

  • Memorial Arena unlocked.
  • A current weekly lineup with challenge-clear progress visible.
  • Teams able to clear the available boss tiers.
  1. Open Memorial Arena and inspect the current bosses, tiers, and challenge-clear progress.
  2. Choose a boss and tier your team can reliably clear.
  3. Complete the challenge and confirm that the clear registered toward the weekly milestone.
  4. Repeat on an available tier or another boss, tracking the total registered clears.
  5. If team assignments are locked for a boss, plan the remaining teams before committing them.
  6. Once the counter reaches eight clears, open the challenge rewards and claim the 100 Crystals.
  7. Check the reward inventory to confirm the Crystals were received.

Farming tips

  • Spread clears across bosses and tiers according to the counter; the example clear combinations vary with the lineup.
  • Treat ranking rewards separately: a lower score can still contribute to challenge-clear progress.

Repeat, collect and use

The milestone is available with each weekly Memorial Arena lineup. It requires new clears in that lineup; it is not an unlimited Crystal farm.

Common mistakes

  • Chasing ranking placement before completing the clear milestone: check challenge-clear progress first.
  • Assuming last week’s boss count or tier plan still applies: inspect the current lineup and counter.
  • Locking teams into bosses without planning later attempts: review the remaining lineup before finalizing assignments.

When to stop or switch

Stop when the eight-clear challenge reward is claimed, or when the remaining available tiers exceed what your roster can reliably clear.

Sources & fact checks
REWARD DETAILS & CONDITIONS

Sources & rewards

Farming route

Memorial Arena eight-clear Crystal milestone

Challenge > Memorial Arena > current weekly boss lineup and challenge-clear rewards.

  • Memorial Arena unlocked.
  • A current weekly lineup with challenge-clear progress visible.
  • Teams able to clear the available boss tiers.
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