Honkai Star Rail Guide

Acheron Build Guide

Last update 18 April 2024
18 April 2024 Update Log:
Update suggested relics and light cones

Acheron Story

A drifter claiming to be a Galaxy Ranger. Her true name is unknown.
She walks the cosmos alone, carrying with her a long sword.

Acheron Stats at Lv. 80

Acheron Abilities

Acheron conditions to stack “Slashed Dream” and “Crimson Knot”

Debuffs inflicted by the Nihility character

	Normal ATK	Skill	Ultimate	Talent	Technique
Black Swan	Arcana (65%)	Arcana	Epiphany	Arcana (65%) triggers when each wave inflicts DOT on the enemy.	Arcana
Silver Wolf	Random Bug (Talent 72%)	Reduce the All-Type RES	Reduce DEF	-	-
Kafka	-	-	Shock	follow-up attack inflict Shock (1 time per turn)	Shock
Welt	-	Reduce SPD (75%) *3	Imprisoned	-	Imprisoned
Guinaifen	Burn (80%) by Trace	Burn	-	Firekiss	Firekiss
Luka	-	Bleed	DMG received	-	Bleed
Sampo	Wind Shear (Talent 65%)	Wind Shear(Talent 65%) *4	Increase DOT DMG	-	-
Pela	-	-	Reduce DEF	-	Reduce DEF

Conditions to stack "Slashed Dream" for Acheron's Ultimate:

(Technique) Enter battle: +1
(Trace) at the start of battle: +5 (only once)
(Normal Attack): +1
(Skill): +2
(Talent): Enemy falls into a debuff after teammate or enemy attack: +1
The Preservation Character, when utilizing LightCone's ability "Trend of the Universal Market": +1

Conditions to stack "Crimson Knot" on enemies:

(Technique): Enter battle: +1 on a random enemy
(Trace) at the start of battle: +5 on a random enemy
(Normal Attack): +1 on the specified enemy
(Skill): +2 on the specified enemy
(Talent): Enemy falls into a debuff after teammate or enemy attack: +1 This effect triggers up to 1 time per action: (Welt's skill -> 1 stack of "Crimson Knot" will be inflicted on the enemy with the most "Crimson Knot" stacks.)
The Preservation Character, when utilizing LightCone's ability "Trend of the Universal Market": +1

Equipping the following LightCone situation on the Nihility character before using their Ultimate: After using one normal attack, followed by using the Ultimate, will grant Acheron 2 stacks of "Crimson Knot".

Nihility Light Cone	Debuff
Patience Is All You Need	If the wearer hits an enemy target that is not afflicted by Erode, there is a 100% base chance to inflict Erode to the target
Resolution Shines As Pearls of Sweat	When the wearer hits an enemy and if the hit enemy is not already Ensnared, then there is a 60% base chance to Ensnare the hit enemy. Ensnared enemies' DEF decreases by 12% for 1 turn(s).
Incessant Rain	After the wearer uses their Basic ATK, Skill, or Ultimate, there is a 100% base chance to implant Aether Code on a random hit target that does not yet have it. Targets with Aether Code receive 12% increased DMG for 1 turn.

Conditions to stack "Slashed Dream" for Acheron's Ultimate:

(Technique) Enter battle: +1
(Trace) at the start of battle: +5 (only once)
(Normal Attack): +1
(Skill): +1
(Talent): Enemy falls into a debuff after teammate or enemy attack: +1
(E2) At the beginning of Acheron's turn: +1
The Preservation Character, when utilizing LightCone's ability "Trend of the Universal Market": +1

Conditions to stack "Crimson Knot" on enemies:

Use technique: Enter battle: +1 on a random enemy
(Trace) at the start of battle: +5 on a random enemy
(Normal Attack): +1 on the specified enemy
(Skill): +1 on the specified enemy
(Talent): Enemy falls into a debuff after teammate or enemy attack: +1
This effect triggers up to 1 time per action:
(Welt's skill -> 1 stack of "Crimson Knot" will be inflicted on the enemy with the most "Crimson Knot" stacks.)
(Silver Wolf Skill + LC "Incessant Rain")
(Pela Ultimate + LC "Resolution Shines As Pearls of Sweat")
(E2) At the beginning of Acheron's turn: +1 on the enemy with the most "Crimson Knot" stacks.
The Preservation Character, when utilizing LightCone's ability "Trend of the Universal Market": +1

Nihility Light Cone	Debuff
Patience Is All You Need	If the wearer hits an enemy target that is not afflicted by Erode, there is a 100% base chance to inflict Erode to the target
Resolution Shines As Pearls of Sweat	When the wearer hits an enemy and if the hit enemy is not already Ensnared, then there is a 60% base chance to Ensnare the hit enemy. Ensnared enemies' DEF decreases by 12% for 1 turn(s).
Incessant Rain	After the wearer uses their Basic ATK, Skill, or Ultimate, there is a 100% base chance to implant Aether Code on a random hit target that does not yet have it. Targets with Aether Code receive 12% increased DMG for 1 turn.

E0 & Along the Passing Shore S1

Conditions to stack "Slashed Dream" for Acheron's Ultimate:

(Technique) Enter battle: +1
(Trace) at the start of battle: +5 (only once)
(Normal Attack): +1, +1 [LightCone Effect]
(Skill): +1, +1 [LightCone Effect]
(Talent): Enemy falls into a debuff after teammate or enemy attack: +1
The Preservation Character, when utilizing LightCone's ability "Trend of the Universal Market": +1

Conditions to stack "Crimson Knot" on enemies:

(Technique) Enter battle: +1 on a random enemy
(Trace) at the start of battle: +5 on a random enemy
(Normal Attack): +1, +1 [LightCone Effect] on the specified enemy
(Skill): +1, +1 [LightCone Effect] on the specified enemy.
Adjacent targent: +1 [LightCone Effect]
(Talent): Enemy falls into a debuff after teammate or enemy attack: +1
This effect triggers up to 1 time per action:
(Welt's skill -> 1 stack of "Crimson Knot" will be inflicted on the enemy with the most "Crimson Knot" stacks.)
The Preservation Character, when utilizing LightCone's ability "Trend of the Universal Market": +1

Nihility Light Cone	Debuff
Patience Is All You Need	If the wearer hits an enemy target that is not afflicted by Erode, there is a 100% base chance to inflict Erode to the target
Resolution Shines As Pearls of Sweat	When the wearer hits an enemy and if the hit enemy is not already Ensnared, then there is a 60% base chance to Ensnare the hit enemy. Ensnared enemies' DEF decreases by 12% for 1 turn(s).
Incessant Rain	After the wearer uses their Basic ATK, Skill, or Ultimate, there is a 100% base chance to implant Aether Code on a random hit target that does not yet have it. Targets with Aether Code receive 12% increased DMG for 1 turn.

E2 & Along the Passing Shore S1

Conditions to stack "Slashed Dream" for Acheron's Ultimate:

(Technique) : Enter battle: +1
(Trace) at the start of battle: +5 (only once)
(Normal Attack): +1,+1 [LightCone Effect]
(Skill): +1, +1 [LightCone Effect]
(Talent): Enemy falls into a debuff after teammate or enemy attack: +1
(E2) At the beginning of Acheron's turn: +1
The Preservation Character, when utilizing LightCone's ability "Trend of the Universal Market": +1

Conditions to stack "Crimson Knot" on enemies:

Use technique: Enter battle: +1 on a random enemy
(Trace) at the start of battle: +5 on a random enemy
(Normal Attack): +1, +1 [LightCone Effect] on the specified enemy
(Skill): +1, +1 [LightCone Effect] on the specified enemy.
Adjacent targent: +1 [LightCone Effect]
(Talent): Enemy falls into a debuff after teammate or enemy attack: +1
This effect triggers up to 1 time per action:
(Welt's skill -> 1 stack of "Crimson Knot" will be inflicted on the enemy with the most "Crimson Knot" stacks.)
The Preservation Character, when utilizing LightCone's ability "Trend of the Universal Market": +1
(E2) At the beginning of Acheron's turn: +1 on the enemy with the most "Crimson Knot" stacks.

Nihility Light Cone	Debuff
Patience Is All You Need	If the wearer hits an enemy target that is not afflicted by Erode, there is a 100% base chance to inflict Erode to the target
Resolution Shines As Pearls of Sweat	When the wearer hits an enemy and if the hit enemy is not already Ensnared, then there is a 60% base chance to Ensnare the hit enemy. Ensnared enemies' DEF decreases by 12% for 1 turn(s).
Incessant Rain	After the wearer uses their Basic ATK, Skill, or Ultimate, there is a 100% base chance to implant Aether Code on a random hit target that does not yet have it. Targets with Aether Code receive 12% increased DMG for 1 turn.

Acheron Abilities Priority

Trilateral Wiltcross

Acheron Normal Attack

Single Target : 30

Level: 1

Deals Lightning DMG equal to 50% Acheron’s ATK to a single enemy.

Slashed Dream Cries in Red

Acheron Ultimate

AoE ATK
Single Target: 15 / AoE: 15
Energy Cost : Slashed Dream 9

Level: 1

Sequentially unleash Rainblade 3 times and Stygian Resurge 1 time, dealing Lightning DMG up to of Acheron’s ATK to a single target enemy, as well as Lightning DMG up to of Acheron’s ATK to other targets.

Rainblade:

Deals Lightning DMG equal to of Acheron’s ATK to a single target enemy and removes up to 3 stacks of Crimson Knot from the target. When Crimson Knot is removed, immediately deals Lightning DMG equal to of Acheron’s ATK to all enemies. For every stack of Crimson Knot removed, the DMG Multiplier for this is additionally in creased, up to a maximum of .

Stygian Resurge:

Deals Lightning DMG equal to of Acheron’s ATK to all enemies and remove all Crimson Knots.
Crimson Knot cannot be applied to enemies during the Ultimate.

Enhance

Acheron Talent

Atop Rainleaf Hangs Oneness

Level: 1

When Slashed Dream reaches 9 point(s), the Ultimate can be activated. During the Ultimate, reduces enemies’ Toughness regardless of Weakness Types and reduces all enemies’ All-Type RES by , lasting until the end of the Ultimate.

When any unit inflicts debuffs on an enemy target while using their ability, Acheron gains 1 point of Slashed Dream and inflicts 1 stack of Crimson Knot on the target. If debuffs are inflicted on multiple targets, then the 1 stack of Crimson Knot will be inflicted on the enemy target with the most Crimson Knot stacks. This effect can only trigger once per every ability usage.

After an enemy target exits the field or gets defeated by any unit while Acheron is on the field, their Crimson Knot stacks will be transferred to the enemy target with the most Crimson Knot stacks on the whole field.

Quadrivalent Ascendance

Acheron Technique

Immediately attacks the enemy, and gains Quadrivalent Ascendance at the start of every wave, dealing Lightning DMG equal to 200% of Acheron’s ATK to all enemies and reduces Toughness of all enemies irrespective of Weakness Types. When inflicting Weakness Break, triggers the Lightning Weakness Break effect.
Quadrivalent Ascendance: The next time Acheron uses her Ultimate, she gains 1 points of Slashed Dream and inflicts 1 stack(s) of Crimson Knot on a single random enemy.
If a normal enemy is attacked, they will be immediately defeated and will not enter combat. The Technique Point is not spent if the attack does not hit an enemy.

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AcheronTraces

Acheron Max Trace Lv Ascension Materials

Red Ogre

First Tier

When battle starts, immediately gains 5 point(s) of Slashed Dream and applies 5 stack(s) of Crimson Knot to a random enemy. When Slashed Dream reaches its upper limit, for every point of Slashed Dream that exceeds the limit, gains 1 stack of Quadrivalent Ascendance. Increases the maximum stackable count for Quadrivalent Ascendance to 3.

Second Tier (Ascension 2)

Thrid Tier (Ascension 3)

The Abyss

First Tier

When there are 1 or 2 Nihility characters other than Acheron in the team, the DMG dealt by Acheron’s Basic ATK, Skill, and Ultimate increases to 115% or 160% of the original DMG respectively.

Second Tier (Ascension 4)

Thrid Tier (Ascension 5)

Thunder Core

First Tier

When the Rainblade from Acheron’s Ultimate hits enemy targets with Crimson Knot, her DMG increases by 30%, stacking up to 3 time(s) and lasting for 3 turn(s). And when Stygian Resurge triggers, additionally deals DMG for 6 times. Each time deals Lightning DMG equal to 25% of Acheron’s ATK to a single random enemy and is viewed as part of the Ultimate DMG.

Second Tier (Ascension 6)

Thrid Tier (Lv. 75)

Other Traces

Lv.1

Lv. 80

Acheron Eidolon

Silenced Sky Spake Sooth

Acheron Eidolon Level 1

CRIT Rate increases by 18% when dealing DMG to debuffed enemies.

Mute Thunder in Still Tempest

Acheron Eidolon Level 2

The number of Nihility characters required for the Trace “The Abyss” to achieve its highest possible effect is reduced by 1. When this unit’s turn starts, gains 1 point of Slashed Dream and inflicts 1 stack of Crimson Knot on the enemy with the most Crimson Knot stacks.

Frost Bites in Death

Acheron Eidolon Level 3

Ultimate Lv. +2, up to a maximum of Lv. 15.
Basic ATK Lv. +1, up to a maximum of Lv. 10.

Shrined Fire for Mirrored Soul

Acheron Eidolon Level 4

When enemy targets enter combat, makes them Vulnerable to the Ultimate DMG, increasing the amount of DMG they take from the Ultimate by 8%.

Strewn Souls on Erased Earths

Acheron Eidolon Level 5

Skill Lv. +2, up to a maximum of Lv. 15.
Talent Lv. +2, up to a maximum of Lv. 15.

Apocalypse, the Emancipator

Acheron Eidolon Level 6

Increases the All-Type RES PEN for the Ultimate DMG dealt by Acheron by 20%. The DMG dealt by Basic ATK and Skill will also be considered as Ultimate DMG and can reduce enemy toughness regardless of Weakness Types. When Weakness is broken, triggers the Lightning Weakness Break effect.

Acheron Key Eidolons

➜

Acheron Build, Best Light Cone & Best Relic

Acheron Best Light Cone

Light Cone Name	Along the Passing Shore
Rarity
Light Cone Type	The Nihility

Along the Passing Shore Overview

Steerer

Increases the wearer’s CRIT DMG by 36%/42%/48%/54%/60%. When the wearer hits the enemy target, there is a 100% base chance of inflicting Empty Bubbles to the enemy, lasting for 1 turn. This effect can be triggered 1 time against each target for every attack the wearer launches. The wearer deals 24%/28%/32%/36%/40% more DMG to targets afflicted with Empty Bubbles, and DMG from Ultimate additionally increases by 24%/28%/32%/36%/40%.

Other Light Cones can be used

Boundless Choreo

Incessant Rain

Patience Is All You Need

Good Night and Sleep Well

Acheron Best Relics

DPS Relics Set

Main Stats

Sub Stats

Relics can be use

Izumo Gensei and Takama Divine Realm

Pioneer Diver of Dead Waters

Inert Salsotto

Band of Sizzling Thunder

Pioneer Diver of Dead Waters (4 Set)

2 Set Effect – Increases DMG dealt to enemies with debuff by 12%.

4 Set Effect – Increases CRIT Rate by 4%. The wearer deals 8%/12% increased CRIT DMG to enemies with at least 2/3 debuffs. After the wearer inflicts a debuff on enemy targets, the aforementioned effects increase by 100%, lasting for 1 turn(s).

Izumo Gensei and Takama Divine Realm (2 Set)

2 Set Effect – Increases the wearer’s ATK by 12%. When entering battle, if at least one other ally follows the same Path as the wearer, then the wearer’s CRIT Rate increases by 12%.

IInert Salsotto (2 Set)

2 Set Effect – Increases the wearer’s CRIT Rate by 8%. When the wearer’s current CRIT Rate reaches 50% or higher, the wearer’s Ultimate and follow-up attack DMG increases by 15%.

Note for “Pioneer Dirver of Dead Waters”

1. “Crimson Knot” is not counted as a debuff, which means it cannot trigger the 100% bonus of the 4 set effect.
2. Debuffs from light cones “Along the Passing Store”, “Incessant Rain”, “Patience Is All You Need” and “Resolution Shines As Pearls of Sweat” can trigger the 4 set’s bonus.
3. Don’t worry if you don’t have the light cones mentioned. The debuff of reducing “All-Type RES” of enemies when Acheron is using ultimate is counted as a debuff and can trigger 4 set’s bonus.

Acheron (E0) Best Team

Acheron is a Main DPS in the team. Acheron’s build is used

Acheron
Main DPS

When an unit inflicts debuffs on an enemy, Acheron gains a point of “Slashed Dream”, and inflicts 1 stack of “Crimson Knot” on the target. When “Slashed Dream” reaches 9 points, the Ultimate can activated. The overall dmg of the Ultimate depends on the stacks of “Crimson Knot” on main target.

Pela
Support

Pela’s ultimate skill is capable of lowering the defense of all enemies. In addition, her passive technique allows her to take the initiative in battle by lowering the enemy’s defense.
(Ultimate : reduced DEF)

Guinaifen
Support

Guinaifen’s normal attacks or skill can inflict enemies with Burn. While using Ultimate, a direct DMG based on the DoT of Burn will be done on enemies. When Burn DMG is done, a debuff which increases DMG taken is inflicted on enemies which increases overall DMG of the team.|
(Normal Attack / Skill : brun)

Gallagher
Healer

Gallagher’s Ultimate increases the damage inflicted by Break DMG on enemies and allows allies to restore HP while attacking. It also enhances Gallagher’s next Normal Attack and reduces the enemy’s ATK.
(Normal Attack : reduces ATK)

Acheron (E2) Best Team

Acheron is a Main DPS in the team. Acheron’s build is used

Acheron
Main DPS

Sparkle
Support

Sparkle can both recover skill points for allies and increase their maximum skill point capacity.
To use Sparkle’s ultimate ability, allies must have already used some of their skill points to avoid exceeding their maximum capacity. The skill of Sparkle increase ally’s CRIT DMG and and advance ally’s action.

Pela
Support

FuXuan
Support

FuXuan’s ultimate skill can deals damage to all enemies while simultaneously restoring the heal of her allies. As enemies’ HP decreases, Seele’s Talent is triggered more frequently.

Acheron Ascension Material

Acheron Lv
Ascension Materials

Level: 0

Honkai Star Rail Guide

Acheron Build Guide

Acheron Story

Acheron Stats at Lv. 80

Acheron Abilities

Acheron conditions to stack “Slashed Dream” and “Crimson Knot”

Acheron Abilities Priority

AcheronTraces

Acheron Max Trace Lv Ascension Materials

Acheron Eidolon

Acheron Key Eidolons

Acheron Build, Best Light Cone & Best Relic

Acheron Best Light Cone

Along the Passing Shore Overview

Other Light Cones can be used

Acheron Best Relics

DPS Relics Set

Relics can be use

Pioneer Diver of Dead Waters (4 Set)

Izumo Gensei and Takama Divine Realm (2 Set)

IInert Salsotto (2 Set)

Acheron (E0) Best Team

Acheron (E2) Best Team

Acheron Ascension Material

Acheron Lv Ascension Materials

Acheron Lv
Ascension Materials