Genshin Impact 6.3 Ultimate Stygian Onslaught Guide

2026-01-23

Hello, Travelers!

Get ready! The next phase of the Stygian Onslaught arrives in Genshin Impact Version 6.3 this Wednesday. Eager to know the schedule, enemies, and rewards? Your trusted guide from MEmu has you covered with all the details!

What Is Stygian Onslaught?

Stygian Onslaught is a permanent endgame combat challenge in Genshin Impact. Located in Sal Terrae, Liyue, it tasks players with conquering powerful bosses across three battlefields, requiring multiple prepared teams to maximize rewards. Introduced in Version 5.7, its standout feature is the “Dust of Enlightenment,” a special item that allows for artifact substat redistribution, adding a new layer of customization and a social/co-op dimension to progression. Participants can also earn Primogems, character/weapon materials, and other valuable rewards.

Genshin 6.3 Stygian Onslaught Stage 1

Lord of the Hidden Depths: Whisperer of Nightmares — Ravager’s Edge

Lv.105 / 110

HP: 12437830 / 13614572

Mechanics:

• Will create a Deepdark Shield equal to 45% HP. It takes 300% of the original DMG when hit by Lunar Reaction DMG, but is immune to Physical DMG. When the Shield takes Lunar reaction DMG for the first time, generates Elemental Orbs that revive 36 energy.

• When the Shield is destroyed, loses 20% HP and becomes Weakened, all RES dropping to -60%.

• Will summon Anglers when charging Ult (each 18% HP). Every Angler defeated reduces Shield by 25%.

Quick take:

The best counter-strategy revolves around the Lunar-Reaction system, specifically Lunar Electro Charge, Lunar Bloom, and Lunar Crystallize. Without these lunar reactions, a high-damage Main DPS is mandatory.

Best Team：

Columbina+Flins+Ineffa+Jahoda

Columbina+Lauma+Nefer+Nahida

Columbina+Zi Bai+Illuga+Zhongli

Mavuika+Citlali+Xilonen+Bennett

Genshin 6.3 Stygian Onslaught Stage 2

Battle-Hardened Fireblade Shock Trooper: Forlorn Hope

Lv.105 / 110

HP: 9232639 / 17195518

Mechanics:

• Will gain 3 layers of Shields, each 4.5% Max HP. The Shield takes 600% increased Electro-Charged DMG and 200% increased Lunar-Charged DMG, and increases all RES except Electro by 60%.

• Shield increases all RES except Electro by 60%, and self-repairs very quickly. After taking Electro-Charged or Lunar-Charged DMG, self-repair almost pauses.
• Break all Shields within a certain time to weaken the Boss: All RES decreases by 50%. After recovery, Electro RES decreases by 60%.

• When each layer is broken, loses 6% HP and generates Elemenral Orbs: Regenerates 18 Electro Energy and 6 other Energy.

Quick take:

Bring Electro + Hydro to proc (Lunar) Electro-Charged, stop the regen, and after 3 layers enjoy a −110% Electro RES nuke window with free team energy.

Best Team：

Columbina+Flins+Ineffa+Jahoda

Skirk+Escofier+Furina+Shenhe

Varesa+Xilonen+Xianyun+Iansan

Chasca+Furina+Iansan+Ororon

Genshin 6.3 Stygian Onslaught Stage 3

Emperor of Fire and Iron: Ordained Conquest

Lv.105 / 110

HP: 8552749 / 14042886

Mechanics:

• Has 64U Pyro horns that increase all RES by 150%. Will lose 10% HP when horns are destroyed.

• Will summon Sternshield Crabs that have 12U Pyro. When their Pyro is depleted, will lose control and hit the Boss, making it lose 12U Pyro.

• When the Boss is hit, it will also lose HP based on the DMG the Sternshield Crab took, equal to 60% Hydro DMG taken + 10% other DMG taken, not exceeding 15% Boss HP.

Quick take:

Hydro characters are highly recommended, while Pyro characters are not advised for this encounter.

Best Team：

Furina+Neuvillette+Kazuha+Xilonen

Furina+Citlali+Ayato+Xilonen

Mavuika+Mualani+Xilonen+Sucrose

FAQ: Stygian Onslaught in Genshin Impact Version 6.0

Q1: Is the Stygian Onslaught a permanent game mode?
A1: No, it is a limited-time, high-difficulty combat event. It is refreshed with each new version and becomes unavailable once the update period concludes.

Q2: How many teams do I need to prepare?
A2: You must prepare three separate teams—one for each battlefield. Characters (along with their gear) cannot be reused across teams, regardless of the difficulty tier you choose.

Q3: What are the main rewards?
A3: Total rewards include approximately 450 Primogems, along with Mora, Character EXP Materials, and the unique Dust of Enlightenment. Additionally, completing the highest Dire difficulty grants an exclusive weapon skin.

Q4: Can I play this event in co-op mode?
A4: Co-op is available but restricted by difficulty. The event has six tiers: Normal → Advancing → Hard → Menacing → Fearless → Dire. Only the first three (Normal, Advancing, and Hard) support cooperative play; Menacing, Fearless, and Dire are strictly solo challenges.

Conclusion

The three chambers present unique hurdles: Stage 1 punishes inflexible teams, Stage 3 tests precision and burst, and Stage 2 poses the greatest challenge with relentless shield-breaking demands. The overall difficulty ranks Stage 1 < Stage 3 < Stage 2, requiring careful team planning. As a universal solution, C6 Chasca effectively counters all stages.