Stygian Onslaught

Stygian Onslaught is a permanent challenge event.

Overview

In this mode, the player must fight three powerful enemies, either a Normal Boss or Local Legend equivalent in three separate battlefields. The player must also defeat the enemy within a specific amount of time.

There are six difficulties that the player can access:

Players have 10 minutes to clear each individual boss on Hard and lower, reduced to 2 minutes at Menacing and higher.

On Menacing, Fearless and Dire difficulties, the player will not be able to select a single character to be deployed multiple times. If the stage was already cleared and the player attempts to swap a character that participated in that stage into another or a character is using a weapon or artifact(s) that another character that cleared a stage had used, the game will warn the player beforehand, and confirming the selection after the warning will cause the previous record to be wiped. One-time rewards can still be claimed provided that the difficulty was already cleared before the change occurred.

At Fearless and Dire difficulties, the enemy will be granted a new and/or modified mechanic. In most cases, these mechanics are usually a boon to the player, as dealing with them will provide benefits such as dealing a large amount of DMG back onto them or providing large amounts of energy for the team in spite of the higher health.

At all difficulties except Dire, a few characters are offered as Exalted Ones, which increases their HP, ATK and DEF by 20%. Up to sixteen characters can be given the status of Exalted One, and several are provided at the start of each season. This bonus stacks alongside that from the Imaginarium Theater.

When a stage is attempted, the player is temporarily locked in a small box. Their characters will additionally have no Energy/Special Energy.

The player can attempt the challenge in Co-Op Mode with other players. Hard and lower can be Co-Op'ed through normal matchmaking, while Menacing and higher requires the player(s) to be invited by the host into their world before doing so, and players will be unable to obtain rewards from Fearless or Dire in Co-Op, as they must be completed solo.

Although Stygian Onslaught is fought in a domain and may contain bosses, they do not count towards the respective Battle Pass tasks regarding bosses and domain counts.

When completing the challenge, no menus can be opened. When in the rewards claiming and preparation stage, only the Character Menu and Inventory > Artifacts can be accessed.

After completing Dire difficulty alone, the parties used in the stages will be granted "Eminence." If attempting Dire challenges with the party, they will obtain "Enduring Eminence" instead, though they do not stack and will replace each other out depending on which comes first. When a character has obtained enough Eminence from many players using them, they will become an Exalted One, granting them the HP, ATK and DEF buffs for lower difficulties. These are checked every day on reset, and are accounted separately for each server.

As with the Imaginarium Theater and Spiral Abyss, the higher stages of Styigan Onslaught require well-built and synergized teams. On Fearless and Dire, well-built and invested teams are essentially mandatory in order to meet the reward targets on time. Particularly strong teams can clear Fearless without much issue, however meeting all reward requirements on Dire usually require team members to have most if not all Constellations unlocked because of the significant jump between it and Fearless.

Rewards

Disturbance Outbreak

For the first ten days of the Stygian Onslaught, it will be in a Disturbance Outbreak state in which players can obtain artifacts similar to completing a Domain of Blessing if a stage is completed on Hard or higher difficulty. They may select the artifacts that they wish to acquire by selecting the "Rewards Settings" option. Players can use Original Resin, Condensed Resin, Fragile Resin or Transient Resin to claim rewards. In order to claim rewards in this manner, the player must have an Adventure Rank of 45 or higher. Additionally, players must have visited the corresponding domain at least once before it can be selected as a reward option.

During the outbreak, players gain Dire Prestige when claiming rewards from the outbreak. 20 is given for Original Resin and 60 for Condensed, Transient or Fragile Resin. When the player has obtained 120 Dire Prestige, an additional artifact will be rewarded. There is no limit to Dire Prestige. Players who have the resin are highly recommended to farm artifacts through disturbance outbreaks, as with ideal teams, players can complete the stage and reset it much faster compared to their original source, especially when it comes to those released before Version 2.0 due to the distance between the challenge and reward points. Once the player has obtained 1200 Dire Prestige, a one-time reward of Dust of Enlightenment is given.

The player's best attempt will also be listed on their profile, prioritizing difficulty over the time it took to clear them.

Challenge Rewards

These can be claimed at any point during the Onslaught's duration.

The Radiant Phantasm are not permanent rewards, instead only available until next iteration of Stygian Onslaught is released. These are purely cosmetic rewards which override the appearance of a character's wielded weapon.

	Mission	Rewards
	Complete the challenge on Normal or higher difficulty	150 Primogem 100,000 Mora 5 Hero's Wit
	Complete the challenge on Advancing or higher difficulty	150 Primogem 100,000 Mora 5 Hero's Wit
	Complete the challenge on Hard or higher difficulty	150 Primogem 100,000 Mora 5 Hero's Wit
	Complete the challenge on Menacing or higher difficulty	1 Dust of En­light­en­ment 100,000 Mora 5 Hero's Wit
	Complete the challenge on Fearless or higher difficulty in single-player mode	1 Dust of En­light­en­ment 100,000 Mora 5 Hero's Wit
	Complete the challenge on Dire difficulty in single-player mode	1 Radiant Phantasm
	Complete the challenge on Dire difficulty in single-player mode within 180s	1 Radiant Phantasm: Sublimation

History

Stygian Onslaught has 11 occurrences:

Image	Name	Start	End	Version
	Stygian Onslaught: Incursion Repeller	June 25, 2025	July 29, 2025	5.7
	Stygian Onslaught: Savage Onslaught	August 6, 2025	September 9, 2025	5.8
	Stygian Onslaught: Terrorshock Blitz	September 17, 2025	October 21, 2025	Luna I
	Stygian Onslaught: Sweeping Assault	October 29, 2025	December 2, 2025	Luna II
	Stygian Onslaught: Tremorfall Trial	December 10, 2025	January 13, 2026	Luna III
	Stygian Onslaught: Blightpurge Battle	January 21, 2026	February 24, 2026	Luna IV
	Stygian Onslaught: Crush and Obliterate	March 4, 2026	April 7, 2026	Luna V
	Stygian Onslaught: Battle of Shattered Jade	April 15, 2026	May 19, 2026	Luna VI
	Stygian Onslaught: Battle of the Howling Cyclone	May 27, 2026	June 30, 2026	Luna VII
	Stygian Onslaught: Savage Tremors	July 8, 2026	August 11, 2026	Luna VIII
	Stygian Onslaught: Battle of the Starburst	August 19, 2026	September 22, 2026	7.0

Gameplay Notes

• At Menacing and higher difficulties,‍^{[only verified for Menacing]} when the player enters any battlefield that is currently displayed in their records, the character attributes (characters' levels and Constellation Levels as well as the Traveler's current element) that are displayed there will update as follows:
  • All characters' attributes will update to what they were when the player enters Stygian Onslaught.
    • This applies even if the player then exits or fails the attempted fight.
    • This applies even if the player makes no changes to any of their teams.
    • Upgrades made after entering the Stygian Onslaught domain are not included in this particular update to characters' attributes.
  • If the player then successfully clears the battlefield such that it results in a better clear, then the characters who were used in that particular battlefield will have their attributes fully updated, including any upgrades that were made after the player entered Stygian Onslaught.
  • As a result, characters' levels and Constellation Levels as well as the Traveler's current element as displayed in players' records may not match what they actually were when each battlefield was cleared.

Tutorials

Stygian Onslaught

You must select a difficulty for Stygian Onslaught challenges. As the difficulty increases, the challenges will start featuring Ley Line Disturbances, which affect combat. Your opponents will also grow trickier to deal with.

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Completing a more difficult challenge will also let you obtain the rewards from the difficulties below that one.

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After you enter a challenge, you must head to 3 separate battlefields and complete 3 time-limited battles. The challenge is considered complete for this difficulty once all opponents in the 3 battlefields are beaten.

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After all players complete challenges on Dire in Solo mode, their current party will be granted "Eminence," and when they complete Dire challenges while completing Perilous Objectives, the current party will be granted the more powerful "Enduring Eminence." Every player cannot have a single character repeatedly receive "Eminence" or "Enduring Eminence" from the same source, and any of the latter a character receives will replace the former if the character previously had it. A character with sufficient "Eminence" will become an "Exalted One," granting them "Eminent Boons" in Normal, Advancing, Hard, Menacing, and Fearless challenges, which will assist players in completing them quickly.

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Two hours after Stygian Onslaught challenges unlock, data on "Exalted Ones" will be updated based on all Travelers' challenge results. After this, that information will update every day at 04:00 AM (GMT+8/GMT+1/GMT-5).
There can be a maximum of 16 "Exalted Ones" at any one time, and when data updates occur, characters with the most "Eminence" will become the new "Exalted Ones."

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You can invite teammates to take part in Co-Op challenges while in Co-Op Mode. When multiple players enter the challenge, your opponents' combat power will change to that of the corresponding Co-Op difficulty, and will not continue to change based on the number of players doing the challenge.
Co-Op challenge results will be recorded separately, and you can check said records at any time. However, only Single-Player Mode challenge records can be displayed.

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The first 10 days after the challenge becomes available will be a period of "Outbreak". During this time, players with Adventure Rank 45 and above can challenge stages at "Hard" difficulty onwards, and upon completing them, can consume Original Resin, Condensed Resin, Fragile Resin, or Transient Resin to revitalize special disturbance-affected Ley Line Blossoms and earn 1×/2×/3× the rewards from their chosen Domains of Blessing.

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Consuming Original Resin, Condensed Resin, Fragile Resin (or Transient Resin) will award 20/40/60 "Dire Prestige" respectively. When you accumulate 120 "Dire Prestige", an additional random 5-star Artifact will be obtained as a phase reward from the two sets available in the Domain of Blessing you selected.
When you accumulate 1,200 "Dire Prestige," you will also obtain an additional "Dire Commendation."

Normal, Advancing, and Hard

In Normal, Advancing, and Hard challenges, you can adjust your party composition before every battle, and there are no character restrictions.

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In Co-Op Mode, the leader shall select and start the challenge.

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Press the button on the left side of the minimap to review challenge information.

Menacing, Fearless, and Dire

In Menacing, Fearless, and Dire challenges, characters that take part in one battle will not be able to participate in the following ones, along with their equipped Weapons and Artifacts.

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In Single-Player challenges, you can adjust your party composition before every battle. However, if you modify a composition that already has challenge records, you will have to reset that corresponding record.

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Additionally, when you complete a battle, if you have a character in your current party who is using Weapons or Artifacts used in other battlefields, you will have to reset any conflicting challenge records if you wish to save the current one.

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In Co-Op Mode, the leader shall select and start the challenge, and no one will be able to adjust their party composition or their characters' Weapons and Artifacts during the challenge.

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Press the button on the left side of the minimap to review challenge information.

Descriptions

Gallery

Loading Screen Icon

Event Menu - Go to Quest

Event Menu - Challenge Unlocked

Permanent Combat Event "Stygian Onslaught": Defeat Powerful Foes and Uncover Hidden Treasures!

Announcement

Basic Rules

Rewards

Dire Prestige

Difficulties

Event Duration

Dust of Enlightenment

Permanent Combat Event "Stygian Onslaught" Is Now Available! Here Are Some Tips for You~

Announcement

Dire Prestige

Characters, Co-Op Mode

Battle Preparation

Challenge Reward

Eminence, Exalted Ones

Dust of Enlightenment

Other Languages

Change History

References