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Anomaly Arbitration 4.5 "Return of the Legion" Stage Guide

Review the stage mechanics, enemy waves, recommended types, and King buffs for Honkai: Star Rail Anomaly Arbitration 4.5 "Return of the Legion," covering Knight 1, Knight 2, Knight 3, King in Check, and King in Check: Plight.

Version: 4.5Aug 26, 2026 - Expected Sep 30, 2026

Knight 1

Knight 1 Stage Guide

Recommended Types

FireFire
QuantumQuantum

Stage Effects

Unwavering Enemy targets' Toughness cannot be reduced, and Break DMG taken is reduced by 50%.

Scales Enemy targets initially have 20 stacks of this effect. Each stack reduces enemy targets' DMG taken by 2%. Enemy targets lose 1 stack each time they are attacked. Stacks of this effect will reset during boss enemy phase transitions.

Knight 1 Recommended Teams

Knight 1 Team 1

Mortenax Blade

Mortenax Blade

Ashveil

Ashveil

Tribbie

Tribbie

Hyacine

Hyacine

Knight 1 Team 2

Himeko • Nova

Himeko • Nova

Sparkle

Sparkle

Tribbie

Tribbie

Dan Heng • Permansor Terrae

Dan Heng • Permansor Terrae

Knight 1 Team 3

Archer

Archer

Rin Tohsaka

Rin Tohsaka

Sparkle

Sparkle

Dan Heng • Permansor Terrae

Dan Heng • Permansor Terrae

Knight 1 Team 4

Acheron

Acheron

Mortenax Blade

Mortenax Blade

Welt

Welt

Hyacine

Hyacine

Knight 2

Knight 2 Stage Guide

Recommended Types

ImaginaryImaginary

Stage Effects

Flow Break Each time after an enemy target is attacked by allies, DMG taken by them decreases by 2% and CRIT DMG taken decreases by 4%, stacking up to 10 time(s). This effect changes to decreasing by 5 stack(s) after the enemy target receives a Follow-Up ATK or when Aha Instant ends.

Knight 2 Recommended Teams

Knight 2 Team 1

Silver Wolf LV.999

Silver Wolf LV.999

Sparxie

Sparxie

Yao Guang

Yao Guang

Huohuo

Huohuo

Knight 2 Team 2

Evanescia

Evanescia

Yao Guang

Yao Guang

Elation Trailblazer

Elation Trailblazer

Huohuo

Huohuo

Knight 2 Team 3

Phainon

Phainon

Cerydra

Cerydra

Cyrene

Cyrene

Dan Heng • Permansor Terrae

Dan Heng • Permansor Terrae

Knight 2 Team 4

Firefly

Firefly

Fugue

Fugue

The Dahlia

The Dahlia

Lingsha

Lingsha

Knight 3

Knight 3 Stage Guide

Recommended Types

IceIce
QuantumQuantum

Stage Effects

Joint Forces DMG taken by enemy targets is reduced by 60%. When there are more than 4 ally targets currently on the field, this effect is reduced by 20% for each additional target.

Knight 3 Recommended Teams

Knight 3 Team 1

Castorice

Castorice

Evernight

Evernight

Cyrene

Cyrene

Hyacine

Hyacine

Knight 3 Team 2

Evernight

Evernight

Cyrene

Cyrene

Robin • Summeretto

Robin • Summeretto

Hyacine

Hyacine

Knight 3 Team 3

Aglaea

Aglaea

Cyrene

Cyrene

Robin • Summeretto

Robin • Summeretto

Hyacine

Hyacine

Knight 3 Team 4

The Herta

The Herta

Anaxa

Anaxa

Robin • Summeretto

Robin • Summeretto

Hyacine

Hyacine

King in Check

King in Check Stage Guide

Recommended Types

IceIce
LightningLightning
QuantumQuantum

Stage Effects

Hemovore At the start of ally targets' turns, they lose 500 HP. This effect can be fatal.

Scales Enemy targets initially have 20 stacks of this effect. Each stack reduces enemy targets' DMG taken by 2%. Enemy targets lose 1 stack each time they are attacked. Stacks of this effect will reset during boss enemy phase transitions.

King Buff Overview

Marvelous Laughter

Increases all ally targets' Elation by 40%, and increases the All-Type RES PEN of Elation DMG dealt by 20%. This effect is doubled when using an Elation Skill.

Finale's Kiss

At the start of any ally target's turn, all ally targets regenerate 25% Energy. This effect can only be triggered 1 time per battle. Increases Skill and Ultimate DMG dealt by all ally targets by 40%.

Memoria Swarm

When the number of ally memosprites is 1/2/3/4, DMG dealt by all allies increases by 20%/25%/30%/50%.

King in Check Recommended Teams

King in Check Team 1

Castorice

Castorice

Evernight

Evernight

Cyrene

Cyrene

Hyacine

Hyacine

Memoria Swarm

King in Check Team 2

Mortenax Blade

Mortenax Blade

Ashveil

Ashveil

Tribbie

Tribbie

Hyacine

Hyacine

Finale's Kiss

King in Check Team 3

Himeko • Nova

Himeko • Nova

Sparkle

Sparkle

Tribbie

Tribbie

Dan Heng • Permansor Terrae

Dan Heng • Permansor Terrae

Finale's Kiss

King in Check Team 4

Silver Wolf LV.999

Silver Wolf LV.999

Sparxie

Sparxie

Yao Guang

Yao Guang

Huohuo

Huohuo

Marvelous Laughter

King in Check: Plight

King in Check: Plight Stage Guide

Recommended Types

IceIce
LightningLightning
QuantumQuantum

Stage Effects

Hemovore+ At the start of ally targets' turns, they lose 1000 HP. This effect can be fatal.

Scales+ Enemy targets initially have 20 stacks of this effect. Each stack reduces enemy targets' DMG taken by 3%. Enemy targets lose 1 stack each time they are attacked. Stacks of this effect will reset during boss enemy phase transitions.

King Buff Overview

Marvelous Laughter

Increases all ally targets' Elation by 40%, and increases the All-Type RES PEN of Elation DMG dealt by 20%. This effect is doubled when using an Elation Skill.

Finale's Kiss

At the start of any ally target's turn, all ally targets regenerate 25% Energy. This effect can only be triggered 1 time per battle. Increases Skill and Ultimate DMG dealt by all ally targets by 40%.

Memoria Swarm

When the number of ally memosprites is 1/2/3/4, DMG dealt by all allies increases by 20%/25%/30%/50%.

King in Check: Plight Recommended Teams

No teams yet