Introduced in Version 3.6 and updated again in Version 3.7, Anomaly Arbitration is Honkai: Star Rail’s newest—and most challenging—endgame mode. In this mode, you must overcome three encounters before facing a final boss, with each stage featuring its own unique mechanics that push you to think creatively about your team-building. This guide will walk you through the most effective strategies, recommended lineups, and key tips to help you conquer Honkai: Star Rail Version 3.7 Anomaly Arbitration.
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What is Anomaly Arbitration?
Anomaly Arbitration is a series of extremely difficult challenges. In Anomaly Arbitration, you will play against powerful enemies to bring equilibrium back to the world. Each period of Anomaly Arbitration will feature 3 Knight stages and 1 King stage.Protected by the Knight stages, the King's strength will be greatly enhanced, making it difficult to defeat. Completing the 3 Knight stages will return the Kingstage to its regular difficulty.
Knight 1
Enemies
Version 3.7 Anomaly Arbitration Knight 1 consists of the following enemies.
| Enemies | In-game model |
| Howling Casket x2 | |
Aurumaton Spectral Envoy x2 | |
Dreamjolt Troupe's Bubble Hound x4 |
Stage Info
| Enemy Traits | Taunting: Enemy target takes immediate action after being attacked 6 time(s). This tally resets at the start of the enemy target's turn. |
| Recommended Types |
Recommended Teams
As for the Knight 1 stage, as long as your sustain has a cleanse ability, a wide range of team compositions can handle this stage. And the following are some recommended team:
| Team Name | Team Lineup |
| Phainon | |
| Castorice | |
| Mydei | |
| Hysliens /w Kafka |
The Phainon team excels in this stage because Phainon resists all crowd control in his ultimate state. If you also have Cyrene, he can maintain his Ultimate indefinitely, meaning you won’t need to worry about the rest of the team being CC’d.
Even though they are off-element, the Castorice team can brute-force their way through the encounter. Hyacine provides reliable cleanses, and the action-advanced enemies generate additional Newbud for Castorice, increasing her damage output. Evernight is likewise a strong Main DPS option for Remembrance teams.
Mydei benefits from being attacked to charge his Godslayer attacks and is naturally resistant to CC, making him another strong pick.
Lastly, damage-over-time (DoT) teams featuring Hysliens + Kafka perform exceptionally well. Since enemies frequently advance in action, they rack up more DoT ticks, greatly boosting your overall damage.
Knight 2
Enemies
Version 3.7 Anomaly Arbitration Knight 2 consists of the following enemies.
| Enemies | In-game model |
Ichor Memosprite: Winged Serpent | |
Howling Casket | |
Borisin Warhead: Hoolay |
Stage Info
| Enemy Traits | Interference: After the enemy uses an attack, randomly causes 5% or 10% action delay to the attacked target. |
| Energy Absorption: After an enemy receives an attack, reduces the attacker's Energy by 2 points, except when the attacker's Energy is maxed. When an enemy target is defeated, the attacker regenerates 10 Energy. | |
| Recommended Types |
Recomended Teams
Like Knight 1, a variety of teams are viable for clearing Knight 2, and here are some recommended lineups:
| Team Name | Team Lineup |
| Phainon | |
| Castorice | |
| Anaxa Hypercarry | |
| Feixiao |
Due to their unique ways of charging their ultimates, Castorice and Phainon both do well in this stage because they are unaffected by the Energy Absorption mechanic.
Anaxa as a solo carry can perform well on this boss, as he can attack up to 4 times with Cerydra's skill and generate enough energy to offset any loss from Energy Absorption, Cyrene can consistently action advance him which mitigates any action value lost.
Feixiao’s team is particularly strong in this Knight fight because she also doesn’t rely on Energy. Besides, much of her damage also occursoutside of her own turns through Follow-Up Attacks, so action-value delays caused by enemy hits have minimal impact on her output. With Robin on the team providing teamwide action advancement, any remaining action delays are effectively negated.
Knight 3
Enemies
Version 3.7 Anomaly Arbitration Knight 3 consists of the following enemies.
| Enemies | In-game model |
Senior Staff: Team Leader | |
Abundance Sprite: Malefic Ape | |
Wonder Forest's Banacademic Office Staff |
Stage Info
| Enemy Traits | Resilient Armor:Enemy target initially has 2 stacks of "Resilient Armor," and each stack reduces DMG taken by 15%. Enemy targets lose 1 stack of "Resilient Armor" each time their Toughness is reduced to 0. |
| Recommended Types |
Recomended Teams
| Team Name | Team Lineup |
| Firefly Superbreak | |
| Rappa Superbreak | |
| The Herta | |
| Evernight Main DPS |
Due to the enemy’s traits, Superbreak team is effective for dealing Knight 3 stage. Both Firefly and Rappa teams generally have no major issues clearing the encounter.
If you do not have a Superbreak option, The Herta is also a strong choice. Her consistent AoE damage, combined with Anaxa as a sub-DPS, makes it easy to break enemy Toughness bars.
For players who prefer a Remembrance lineup, Evernight works well as a Main DPS. Her AoE Ice damage is effective in this encounter, and additional Ice support from Remembrance Trailblazer and Cyrene further improves the team’s performance.
King in Check
Enemies
The final boss for the Version 3.7 Anomaly Arbitration is Sublime, Radiant, Avatar of the Sky, whichhas 3 phases.
| Enemies | In-game model |
Sublime, Radiant, Avatar of the Sky |
Stage Info
| Enemy Traits | Energy Absorption+: After an enemy target receives an attack, reduces the attacker's Energy by 2 points, except when the attacker's Energy is maxed. When an enemy target is defeated, the attacker regenerates 10 Energy. |
| Sunder: When ally targets are being attacked by enemies, the "Sunder" effect will be inflicted on them. Each stack additionally causes the holder to lose HP equal to 0.8% of their Max HP. This effect can be stacked indefinitely and cannot be dissipated. After targets with ''Sunder'' received a Shield from an ally target other than themselves or healing, all ''Sunder'' effects are dispelled on both targets. | |
| Recommended Types |
Extra Buff
Unlike the previous Knight stages, the King stage gives you a choice of three buffs to select before entering the fight:
| Buff | Description |
| Sanguine Vitality | Increases CRIT DMG of all ally targets by 50%. When using "Healing Rainbow", the increased Max HP is further raised by 60%. |
| Power Surge | Increases all allies' Basic ATK, Skill, and Ultimate DMG by 80%. When using "Healing Rainbow," additionally increases all allies' ATK by 2000 points. |
| Fluid Dash | Increases all allies' DoT All-Type RES PEN by 40%. When using "Healing Rainbow," additionally increases all allies' SPD by 30%. |
The first buff greatly favors HP scaling teams while the 2nd is a generic buff for any ATK based carry and the final buff favors DOT teams. Do note that you don't receive the 2nd part of the buff until the final phase of the fight when Hyacine assists you (just like in the story).
Recomended Teams
The following are the recommended lineups for King in Check stage!
| Team Name | Team Lineup |
| Phainon | |
| Castorice | |
| Evernight | |
| The Herta | |
| Hysliens /w Kafka |
Conclusion
Anomaly Arbitration is one of the toughest endgame modes in Honkai: Star Rail. However, with the right team setups, you’ll have a solid chance of clearing it and earning rewards such as Lone Stardust and Self-Modelling Resin. And if you're looking to obtain new characters or 5-star Light Cones to make this mode easier, remember to top up Honkai: Star Rail through Lootbar.gg.
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