Genshin 6.1 Luna II Stygian Onslaught Guide | D6 To Get Weapon Skins!

Hello Travelers! The new Stygian Onslaught in Version 6.1 “Luna II” has officially begun on October 29, 2025, and many players are calling it the toughest challenge yet. This cycle pushes coordination, reaction timing, and team setups to the limit, demanding precision and strong investment to secure full-star clears.

In this guide, we’ll cover boss mechanics, elemental reactions, and the most effective team strategies to help you overcome every stage of the Stygian Onslaught and claim all the rewards with ease!

 

Basic Rules

This game mode will be added in this update and features 6 Difficulty Levels (I–VI). Each challenge requires defeating 3 consecutive bosses. Starting from Difficulty Level IV, players must form three teams with no overlapping characters to undertake the challenge.

Teams & Time Limit：

• Levels 1~3 Each Boss 10min. You can use a character more than once, and you can Co-Op by Matching.
• Levels 4~5 Each Boss 120s. You cannot use a character more than once.
• Level 6 Each Boss 120s. If total time is below 180s, you get a better reward.

Dust of Enlightenment is a new item that will be added to the game onceGenshin lmpact 5.7 goes live. This item can be used to re-roll artifactsubstats so that you can turn a mediocre artifact into a good one. You can also choose which substats you want to prioritize before re-rolling.

Artifact Rewards：You can choose an Artifact Domain and claim rewards from it via the following methods:

• After completing Level 3 or above, use Resin to claim reward once.
• Every phase there is a 10 day Burst Period, when you can spend an extra 20/40/60 Resin to claim 1/2/3 rewards.

For every 120 Resin spent via the 2nd method, you obtain 1 extra 5-star artifact, and after spending 1200 Resin, you will get an Artifact Reroll material.

Difficult Summary

For those seeking Primogems, clearing the D3 is straightforward, as enemies cap at Level 90 with no enhanced mechanics. Fractured D4 increases the challenge but allows Co-Op mode; if you cannot clear it solo, you can call for backup from experienced players to secure victory. Since the rewards include Dust of Enlightenment, it's worth pursuing. Fractured D5 offers the same rewards as Level IV but is solo-only, pitting you against Level 105 bosses with enhanced mechanics. However, if you aim to obtain the Weapon Skins, prepare for a significant challenge!

Simply put:

D3: Open world level difficulty and coop; timer 10 min, able to get all gems

D4: 11-1 abyss difficulty

D5: 12-3 abyss difficulty or slight higher

D6: even whales would struggle

D6 Rewards: Weapon Skins

Clearing the challenge rewards a full set of limited-time Weapon Skins, applicable to all weapon types and all elemental visual effects. Players can individually enable/disable these skins per character. Completing the stage within 180 seconds upgrades the skins to 5-Star quality, granting them enhanced visual effects.

*Note: These skins purely alter appearance and provide no stat bonuses or gameplay advantages, functioning similarly to Character Outfits.

For example. Observe how the recolored "The Unforged" greatsword perfectly complements Marvuika's aesthetic! This harmonious pairing is truly visually stunning

Recommend Comps

Let's be honest: D6 poses a significant challenge. It requires three fully independent teams (no shared characters) capable of defeating bosses each possessing over ten million HP. This demands considerable investment, placing it firmly within reach of dedicated players with well-developed rosters. Below are our recommended team compositions and key Constellations to help you claim the radiant Weapon Skins!

Floor 1	Floor 2	Floor 3
Frostnight Herra: Hatred and Rage	Battle-Hardened Lightkeeper: Mourning Echoes	Veteran Frost Operative: Bloodsoaked Blade

For Chamber 1

Enemy Mechanics:

Frostnight Herra: Hatred and Rage is a boss that periodically enters a Gloomveiled state, increasing all of its RES by 120%. It will only exit this state after taking 50 instances of damage, with Lunar Reaction damage counting as 6 instances each time. Once the Gloomveiled state ends, Herra will absorb the Element that dealt the most damage to it, gaining immunity and permanent infusion of that Element. However, if the highest source of damage was Lunar Reaction or Physical, this absorption effect will not occur.

Combat Mechanics:

Both Lunar Reaction and Physical setups work great for this boss. For Lunar teams, Flins and Nefer are top picks. For Physical, Zhongli with Crescent Pike excels thanks to rapid multi-hit attacks and extra damage instances for faster shield breaks. If you don’t have Zhongli, Xiangling with Crescent Pike is a solid alternative—just cast her Skill and keep attacking; each hit counts twice for efficient shield-breaking.

Alternatively, Burning Reactions are also a strong option. Since the boss frequently gains Pyro attachment, using Dendro-based main DPS characters ensures fast shield removal and steady elemental damage.

Once the shield is broken, you’ll have around 55 seconds of pure damage time before the next shield phase begins. With each chamber lasting about 120 seconds, that means only two shield cycles per run — so optimizing your shield-breaking speed and damage rotation is crucial for a full-clear score.

Recommended Team Compositions:

D6 Recommended Teams
Flins	Ineffa	Yelan	Sucrose
Nefer	Lauma Nahida	Aino	Sucrose
Neuvillette	Furina	Lauma	Mavuika
D1-D5
Mavuika	Xilonen	Citlali	Bennett
Nahida	Xingqiu	Kuki Shinobu	Yelan
Kinich	Emilie	Xiangling	Bennett

For Chamber 2

Enemy Mechanics:

The Battle-Hardened Lightkeeper: Mourning Echoes is a fast-moving boss with 90% Cryo RES. When its HP first reaches zero, it enters the Wild Hunt state instead of dying. Using Ascendant Gleam-enhanced abilities forces it into Grief-Stricken, where it permanently loses 65–90% of the damage taken from Max HP and can finally be defeated. During the fight, Wild Hunt Exiles appear—if not cleared quickly, the boss absorbs their HP to heal itself.

Combat Mechanics:

To tackle the Wild Hunt effectively, your team should aim for full Ascendant Gleam—meaning at least two Nod-Krai characters in the party. When the Wild Hunt is hit by Ascendant Gleam-enhanced abilities, both its red HP and gray HP can be reduced simultaneously. Key skills that trigger this include: Aino’s Elemental Burst, Lauma’s Elemental Skill, Flins’ Electro-triggered attacks after Overload, and Nefer’s Elemental Skill and Charged Attack.

Once the boss’s red HP is cleared, it enters a 10-second Critical State, during which gray HP can be targeted. Using Ascendant Gleam abilities also triggers this state, letting you chip away at both red and gray HP at the same time. Teams without full Ascendant Gleam will only deal 65% of damage to gray HP, while full Ascendant Gleam converts 90% of damage into gray HP reduction. Prioritizing full Ascendant Gleam maximizes efficiency.

The Wild Hunt has 90% Freeze RES and numerous movement abilities, so positioning is important. Meanwhile, the Lightkeeper summons Wild Hunt Exiles throughout the fight. If these minions aren’t eliminated quickly, the boss absorbs their remaining HP to heal itself, making the fight more difficult.

For smooth progression, use either a full Ascendant Gleam team or a strong AoE-focused party. Otherwise, the boss’s mechanics will put heavy pressure on your DPS and make the battle significantly harder.

Recommended Team Compositions:

D6 Recommended Teams
Nefer	Lauma Nahida	Aino	Sucrose
Flins	Ineffa	Yelan	Sucrose
D1-D5
Skirk	Furina	Escoffier	Yelan Xingqiu
Mavuika	Xilonen	Citlali	Bennett
Neuvillette	Furina	Xilonen	Kaedehara Kazuha

For Chamber 3

Enemy Mechanics:

The Chamber 3 boss, Veteran Frost Operative: Bloodsoaked Blade – Mourning Echoes, has +90% Frozen RES and high interruption resistance, making its rapid abilities hard to stop. When its Shield is down, it uses Hunt Down, generating a Shield equal to 22.5% HP, which also costs it HP when broken. While Shielded, it applies Bond of Life to all characters (27,100 / 29,028 initial + 8,130 / 8,708 per second), so timing attacks to break the Shield is key for effective damage.

Combat Mechanics:

Characters affected by Bond of Life take 2.5× damage from certain attacks of the boss. In addition, affected characters continuously lose HP based on a percentage of Bond of Life plus a fixed amount. When off-field, this bleed does not cause death, leaving roughly 5% HP; on-field, it can lead to lethal damage. This bleed persists until the Bond of Life is removed.

Healing alone can remove the Bond of Life, but the required healing is very high and difficult to achieve. It’s often more reliable to use character-specific mechanics to clear it — for example, Arlecchino or Clorinda, who can interact with or utilize Bond of Life effectively. Shields can mitigate some of the negative effects, reducing HP loss significantly, though affected characters will still steadily lose health. Managing Bond of Life properly is key to surviving this boss.

Recommended Team Compositions:

D6 Recommended Teams
Arlecchino	Yelan Xilonen	Bennett	Citlali Lan Yan
Clorinda	Fischl	Chevreuse	Thoma
Chasca	Mavuika	Iansan	Bennett Furina
D1-D5
Neuvillette	Furina	Xilonen	Citlali
Mavuika	Xilonen	Citlali	Bennett

Conclusion

This cycle of Stygian Onslaught in Version 6.1 has just refreshed, and many players are calling it the toughest one yet! Unlike the previous run, this phase pushes team coordination and reaction timing to the limit — making it one of the most challenging updates in recent memory.

Securing the luminous special-edition weapon skins requires well-invested C6 DPS characters, while supports need only their essential Constellations unlocked. With this preparation, clearing the challenge becomes achievable!

Worried about insufficient Primogems? Looking to effortlessly conquer the Stygian Onslaught with full stars? For the best deals on Genshin top-ups, visit LDShop—your trusted source for secure transactions and exclusive bonuses. And don't forget to follow LDShop for updates!