Tower of Saviors Event Expiration and Mission Priority Guide

When event cycles and maintenance deadlines approach in Tower of Saviors, clear non-repeatable Joint Operation progress first, claim any unearned first-clear Diamonds from Biweekly stages second, and collect pending rewards from your event mission tabs before spending stamina on duplicate card farming. Failing to claim these milestone rewards or finish active rooms before the scheduled cutoff permanently locks you out of the current rotation's free Diamonds, milestone cards, and upgrade materials.

Deadline Triage and Objective Priority

When stamina and remaining event time are limited, focus strictly on one-time and group-dependent rewards. Grinding skill-level fodder or standard enhancement items can wait, as standard enhancement dungeons rotate frequently, while event-specific milestones vanish entirely at reset.

Finishing Joint Operation Milestones

Joint Operation (Subjugation) battles distribute rewards through two separate channels: your personal clear contribution and overall room clearance. If a room remains incomplete when the event closes, you lose access to the final completion rewards regardless of how much individual stamina you invested.

To secure your rewards without wasting entry resources:

• Deploy burst-oriented teams: Use reliable offensive teams featuring pierce or nullification mechanics to bypass boss gimmick shields quickly. Avoid testing experimental defensive teams during the final hours of a cycle.
• Check room timers before entering: If you join a cooperative room hosted by another player, confirm that the room timer has sufficient time remaining. If the battle or room expires while you are mid-run, network verification can fail and forfeit your clearance credit.
• Hit individual contribution thresholds: Aim for personal damage benchmarks that lock in top personal reward tiers so that you secure valuable card copies even if host activity slows down.

Sweeping Biweekly Stages for Diamonds and Harpies

Every Biweekly dungeon awards a free Diamond upon clearing all standard difficulty tiers. Check all tiers—from Apprentice up through Master and Extra—to ensure no first-clear bonuses were skipped earlier in the event window.

Beyond basic completion, review stage achievements. Specific achievement criteria—such as beating a stage with a team of four or fewer monsters, using an all-attribute team, or clearing within a specified turn count—frequently award Harpies or Souls.

If you only need monster copies for collection or future pantheon skill leveling, secure a single copy for your archive. Refrain from burning stamina refill potions for skill-level farming unless the featured card provides an immediate active role in your primary teams.

Claiming Mission Board and Special Event Rewards

Completing stage requirements does not always automatically deliver rewards to your inventory. The Tower of Saviors Special Mission and Event tabs require manual redemption before scheduled server maintenance begins.

Before logging out ahead of the deadline, verify these sections:

• Daily Event Missions: Ensure all daily clear counters and associated reward chests have been collected.
• Cumulative Clear Counters: Check whether running event stages reached targets (such as 5, 10, or 20 runs) that grant Black Keys, Neon Stones, or Harpies.
• Challenge Checkpoints: Tap into event sub-banners to claim final-tier reward chests that require manual confirmation.

Managing Stamina and Temporary Items Before Reset

Review your in-game mailbox and temporary inventory for time-limited stamina refills. Some event reward potions carry expiration timers tied to the maintenance window; use these temporary items to cover your final Biweekly clears rather than dipping into your permanent Diamond or potion reserves.

Calculate the exact stamina required for your remaining first clears. If you need 50 stamina for an Extra stage that awards a Diamond, prioritize that clear immediately. Do not activate large stamina refill items right before server maintenance unless you have adequate time to spend the surplus energy before the game goes offline.