Stygian Onslaught Luna 4 / 6.3 Best Characters and Teams in Genshin Impact
This is our guide for Stygian Onslaught in version Luna 4 / 6.3 of Genshin Impact. Read on to learn about the best teams available for the current cycle of Stygian Onslaught.
Stygian Onslaught Luna 4 Best Characters and Boss Advice
Stygian Onslaught is the hardest endgame content available in Genshin Impact facing against 3 different bosses with harder mechanics. Stygian Onslaught proves to be a challenge for all types of players. Here you can see an overview of the boss mechanics, some general combat advice as well as our recommended team compositions to clear Stygian Onslaught in version Luna 4.
But first, some general gameplay advice.
Co-Op Is Your Friend!
Stygian Onslaught can be cleared in Co-Op to an extent with some limitations. Difficulty 1/2/3 support matchmaking-based Co-Op allowing you to farm artifacts easily at Hard III difficulty while still being able to build up Dire Prestige.
Difficulties above that however require you to Co-Op with people inside your world. Furthermore, Fearless V and Dire VI's rewards are solo only. But you can therefore still gain the Dust of Enlightenment from Menacing IV.
Make Sure to Use Exalted Ones
2 Hours after each phases reset, Exalted Ones become available. These are the 16 characters based on the entire server's completion of Dire VI and grants a buff to your characters too. Providing increases to ATK, DEF and HP if you own that character. Exalted Ones do not give you access to that character!
Exalted ones can change daily too so if a character you own is not currently listed, they may change tomorrow.
Stygian Onslaught Luna 4 Current Duration
- Event Duration: 2026/01/21 10:00 ~ 2026/02/24 03:59
- Disturbance Outbreak: 2026/01/21 10:00 ~ 2026/01/31 03:59
Stygian Onslaught Luna 4 Bosses and Best Team Compositions
Click below to see each of the 3 available bosses in the current patch Luna 4 Stygian Onslaught phase as well as weaknesses, and the best team compositions to clear easily.
Battle-Hardened Fireblade Shock Trooper 6.3 Stygian
Enemy Details
Multi-Shield
In battle, the opponent will deploy a special Experimental Multi-Shield to protect themselves while they prepare to activate Thundering Suite. The Shield will repair itself by a certain amount at regular intervals. Destroying all 3 layers of the Shield will prevent Thundering Suite's activation and paralyze the opponent. Electro-Charged and Lunar-Charged DMG are more effective at destroying the Shield. Each layer of the Shield that is destroyed will cause a single instance of massive damage to be dealt to the opponent, while generating additional Elemental Orbs.
Multi-Shield
In battle, the opponent will deploy a special Experimental Multi-Shield to protect themselves while they prepare to activate Thundering Suite. The Shield will repair itself by a certain amount at regular intervals. Destroying all 3 layers of the Shield will prevent Thundering Suite's activation and paralyze the opponent. Electro-Charged and Lunar-Charged DMG are more effective at destroying the Shield. Each layer of the Shield that is destroyed will cause a single instance of massive damage to be dealt to the opponent, while generating additional Elemental Orbs.
Thundering Barrage
When Thundering Suite is activated, it will deal Electro DMG over a large AoE and then unleash continuous Electro attacks for a period of time. If you successfully prevent the suite's activation, the opponent's equipment will malfunction, causing their Electro RES to be greatly decreased.
Emergency Power Surge
Affected by the Ley Line disturbance, the Experimental Multi-Shield increases All RES except Electro, and its self-repairing abilities are boosted. However, after taking Electro-Charged or Lunar-Charged DMG, its rate of self-repair will be greatly reduced. Once activated, the DMG dealt by Thundering Suite is greatly increased, as is the duration of its attacks.
Combat Advice
- Boss gains 3 shield layers which takes 600% increased Electro-Charged DMG and/or 200% increased Lunar-Charged DMG with massive RES increases for everything but Electro.
- Use Electro-Charged/Lunar-Charged to stop shields from regenerating.
- When shields are broken, boss will be weakened. Losing HP, generating energy for the team and decreasing the bosses RES significantly.
Recommended Team Compositions
This is not a comprehensive list of teams. The inclusion or exclusion of any specific team that matches the advantageous elements does not necessarily reflect their strength in the meta.
| Team Suggestions | |||
|---|---|---|---|
| Arlecchino | Durin | Chevreuse | Fischl |
| Varesa | Durin | Chevreuse | Iansan |
| Flins | Ineffa | Columbina | Sucrose |
Lord of the Hidden Depths: Whisperer of Nightmares 6.3 Stygian
- Has Advantage:Lunar Reaction DMG
- Has a Disadvantage: None
Enemy Details
Deepdark Shield
The Lord of the Hidden Depths: Whisperer of Nightmares gathers Abyssal energy to create a protective Shield. Lunar Reaction DMG is more effective at destroying this Shield. When the Shield is destroyed, the Lord of the Hidden Depths: Whisperer of Nightmares takes a single instance of immense DMG and temporarily enters a weakened state.
Riftscar Devour
During battle, the Lord of the Hidden Depths: Whisperer of Nightmares will unleash Rift Assaults, forming a Shield as it begins to charge while summoning multiple Fishers of Hidden Depths. Once it has fully charged, it will deal DMG over a large AoE and devour all Fishers. Defeating Fishers will cause the Shield to take DMG. Destroy the Shield to interrupt the Lord of the Hidden Depths: Whisperer of Nightmares' charging.
Deepdark Shield: Deeproot Blight
Affected by the Ley Line disturbance, the Lord of the Hidden Depths: Whisperer of Nightmares gathers Abyssal energy to create an extremely durable protective Shield. Lunar Reaction DMG is more effective at destroying this Shield. When the Shield is destroyed, the Lord of the Hidden Depths: Whisperer of Nightmares takes a single instance of immense DMG and temporarily enters a weakened state.
Rift Assault
Affected by the Ley Line disturbance, the Lord of the Hidden Depths: Whisperer of Nightmares will enter a lengthy charging state and summon multiple Fishers of Hidden Depths. Once it has fully charged, it will deal DMG over a large AoE and devour all Fishers. Defeat Fishers before this happens to destroy the Shield and interrupt the Lord of the Hidden Depths: Whisperer of Nightmares' charging.
Combat Advice
- Shield takes more damage against Lunar Reactions but 0 damage against Physical DMG specifically.
- The first instance of Lunar Reaction DMG on the shield will generate a lot of energy.
- Adds spawned will reduce shield by 25%.
- Boss loses 20% of their HP when shield is destroyed and RES decreased to -60% making them very vulnerable to all elements.
Recommended Team Compositions
This is not a comprehensive list of teams. The inclusion or exclusion of any specific team that matches the advantageous elements does not necessarily reflect their strength in the meta.
| Team Suggestions | |||
|---|---|---|---|
| Flins | Ineffa | Columbina | Sucrose |
| Nefer | Lauma | Columbina | Kuki Shinobu |
| Varesa | Ineffa | Columbina | Xilonen |
| Mavuika | Bennett | Xilonen | Citlali |
Emperor of Fire and Iron 6.3 Stygian
Enemy Details
Molten Crown
The twin molten horns located high up on the body of the Emperor of Fire and Iron are Pyro-aligned organs that enable it to unleash more vicious elemental attacks and grant it even stronger defensive capabilities. When unleashing certain attacks, its twin molten horns will stay close to the ground, providing an opportunity to use Elemental Reactions to destroy them. Once the Pyro element stored within the twin molten horns is exhausted, they will be destroyed, causing the powerful foe to take a single instance of immense DMG. Once destroyed, the horns cannot be restored for a period of time.
Shield Bearers
Affected by the Ley Line disturbance, the Emperor of Fire and Iron will summon Sternshield Crabs to assist during battle. Sternshield Crabs continuously channel Pyro to the twin molten horns. Once their Pyro is exhausted, the Sternshield Crabs will be defeated. Once a Sternshield Crab is defeated, it will lose control and collide with the Emperor of Fire and Iron, overloading the Pyro element within its twin molten horns and damaging them, causing the Emperor of Fire and Iron to take DMG proportional to the DMG the Sternshield Crab itself has received. A maximum of three Sternshield Crabs can be on the field at once.
Radiant Coronation
Affected by the Ley Line disturbance, the Emperor of Fire and Iron will perform Radiant Coronation in battle, charging briefly before dealing DMG over a large AoE. Destroy the twin molten horns to interrupt its charging.
Combat Advice
- Pyro Horns increase all RES by 150% not just Pyro and will lose HP when horns are destroyed.
- Adds will spawn and when their Pyro is removed, will hit the boss, decreasing the bosses Pyro.
- This will also make the boss lose HP based on how much DMG the crab adds took. Based primarily on the amount of Hydro DMG taken to a max of 15% of the bosses HP.
Recommended Team Compositions
This is not a comprehensive list of teams. The inclusion or exclusion of any specific team that matches the advantageous elements does not necessarily reflect their strength in the meta.
| Team Suggestions | |||
|---|---|---|---|
| Skirk | Furina | Escoffier | Yelan |
| Neuvillette | Escoffier | Furina | Citlali |
| Mualani | Mona | Sucrose | Xilonen |
| Skirk | Furina | Escoffier | Yelan |
Changelog
- 21 Jan. 2026: Luna IV Stygian Onslaught guide updated.
- 10 Dec. 2025: Luna III Stygian Onslaught guide updated.
- 28 Oct. 2025: Luna II Stygian Onslaught guide updated.
- 13 Sep. 2025: Luna I Stygian Onslaught guide updated.
- 01 Aug. 2025: 5.8 Stygian Onslaught teams added.
- 25 Jun. 2025: Guide added.
This guide has been written by Shikhu (Discord - Shikhu), an avid Genshin Impact player who has been exploring Teyvat since the game has launched. He has experienced all the game has to offer from building his favorite characters, exploring the world to clearing Spiral Abyss each rotation. His favorite character being his C6 Furina.