Arknights Endfield Echoes of War Season of Fervor begins on November 5, 2026 at 12:00 server time. The next season of the permanent Echoes of War challenge mode has three cycles with three stages apiece and introduces three new stages, with rewards including 300 Oroberyl for clearing the new stages on Normal.
Season of Phantasia runs until November 5 at 11:59 server time. Echoes of War remains available as a mode; it’s the seasonal challenges that rotate. Here’s what to finish first and what Fervor adds at the changeover.
Arknights Endfield Echoes of War Season of Fervor start time
When does Season of Fervor begin?
The current Season of Phantasia finishes November 5 at 11:59 server time. Season of Fervor starts the following minute, at 12:00 server time on November 5, and continues until the next version update and maintenance.
Those are server-time dates. Your actual local clock depends on whether you play on the Asia or Americas/Europe server. GRYPHLINE has not specified a fixed public end date for Fervor beyond the next version maintenance.
How many stages and cycles are there?
Arknights Endfield Echoes of War Season of Fervor contains three cycles, and each cycle includes three stages. The update explicitly says three new stages are being added for the season.
Three cycles with three stages each describes the format. The update confirms three newly added stages for Fervor, not nine new stages. Check the current cycle’s selection when the season opens.
What rewards come from Normal difficulty?
GRYPHLINE confirms rewards including 300 Oroberyl for clearing all the new stages on Normal difficulty. You need to complete the relevant content to earn the reward; the 300 Oroberyl are not a free login claim.
The announcement doesn’t list each new stage’s enemies or high-difficulty rewards. Check those details in the challenge screen when Fervor opens, rather than relying on guessed boss teams.
What should you do before November 5?
If you are still working on Season of Phantasia, review its current stage rewards and finish any objectives you want from that rotation before November 5 at 11:59 server time. Then return once Fervor opens and identify the three new Normal stages first.
It makes sense to start with the confirmed Normal clear reward before spending time chasing unverified higher-difficulty objectives. If your account hasn’t unlocked Echoes of War yet, follow the progression instructions displayed in-game rather than a speculative level requirement.
How does Echoes of War differ from Umbral Monument?
Echoes of War is a permanent mode with rotating seasons. Umbral Monument’s Murmurs of the Deep Forest is a separate four-stage challenge addition, and Monumental Etching: Forest of Maras has its own limited event ending November 5 at 04:00 server time.
Contingency Contract: Indigo Experimental Operation is another distinct challenge event, beginning November 5 at 12:00 server time. The Arknights Endfield Echoes of War Season of Fervor guide is about the rotating Echoes season, not the rewards or criteria of either other mode.
Arknights Endfield Echoes of War Season of Fervor: what to prioritise
Check any unfinished Phantasia stages before the season change. When Fervor becomes available, work through its three new Normal stages for the confirmed 300 Oroberyl reward, then use the live stage panel to plan further attempts.
Fervor opens November 5 at 12:00 server time. Clear the new stages on Normal for the confirmed Oroberyl reward, then use the live challenge panel to plan harder attempts.
Official source: GRYPHLINE’s Sanctuary of Ink version update notes.
