What are the best builds for Acheron in Honkai: Star Rail? Acheron is a Lightning character who claims to be a Galaxy Ranger, and who subscribes to The Nihility Path Type. She's devastating offensively and has an extremely useful Technique. On this page, as part of our Honkai: Star Rail guide, we're going to share the best builds for Acheron.

What Are the Best Builds for Acheron in Honkai: Star Rail?

Honkai: Star Rail: Acheron - Best Builds 1
Image: Push Square

Acheron is a mysterious character who claims to be a Galaxy Ranger in Honkai: Star Rail. Subscribing to The Nihility Path Type, she's an absolute powerhouse of an offensive option who has the added bonus of streamlining the Simulated Universe. Below we'll detail everything you need to know about the character, including the best builds for Acheron.

Should You Roll or Pull for Acheron?

Acheron is a borderline essential character with devastating offensive capabilities and a unique Technique which will make cruising through open world content and the Simulated Universe a breeze. When paired with the right partners, her ability to issue damage and weaken opponents is among the best in the game.

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Overview

Below is a full guide to Acheron, including all of her abilities, including Skills, Talents, Techniques, Traces, and Eidolons.

Abilities

Skills

  • Trilateral Wiltcross: Basic Attack
    Deals Lightning DMG equal to 50% Acheron’s ATK to a single enemy.
  • Octobolt Flash: Skill
    Gains 1 point(s) of Slashed Dream. Inflicts 1 stack(s) of Crimson Knot on a single target enemy, dealing Lightning DMG equal to 80% of Acheron’s ATK to this target, as well as Lightning DMG equal to 30% of Acheron’s ATK to adjacent targets.
  • Slashed Dream Cries in Red: Ultimate
    Sequentially unleash Rainblade 3 times and Stygian Resurge 1 time, dealing Lightning DMG up to 223% of Acheron’s ATK to a single target enemy, as well as Lightning DMG up to 180% of Acheron’s ATK to other targets.
    Rainblade: Deals Lightning DMG equal 14% 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 9% of Acheron’s ATK to all enemies. For every stack of Crimson Knot removed, the DMG Multiplier for this is additionally increased, up to a maximum of 36%.
    Stygian Resurge: Deals Lightning DMG equal to 72% of Acheron’s ATK to all enemies and remove all Crimson Knots. Crimson Knot cannot be applied to enemies during the Ultimate.

Talent

  • Atop Rainleaf Hangs Oneness
    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 10%, 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.

Technique

  • Quadrivalent Ascendance
    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.

Traces

  • Red Ogre
    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.
  • The Abyss
    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.
  • Thunder Core
    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.

Eidolons

  • Silenced Sky Spake Sooth
    CRIT Rate increases by 18% when dealing DMG to debuffed enemies.
  • Mute Thunder in Still Tempest
    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
    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
    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
    Skill Lv. +2, up to a maximum of Lv. 15. Talent Lv. +2, up to a maximum of Lv. 15.
  • Apocalypse, the Emancipator
    • 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.

What Are the Best Light Cones for Acheron?

Below we've compiled some of the best Light Cones for Acheron to use, based on their attributes and how they align with the character's unique abilities.

Along the Passing Shore

  • Stars:
  • Base Stats:
    • HP: 48
    • ATK: 28
    • DEF: 18
  • Description:
    Increases the wearer's CRIT DMG by 36%. When the wearer hits the enemy target, inflicts Empty Bubbles on 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% more DMG to targets afflicted with Empty Bubbles, and DMG from the wearer's Ultimate additionally increases by 24%.

Good Night and Sleep Well

  • Stars:
  • Base Stats:
    • HP: 43
    • ATK: 21
    • DEF: 15
  • Description:
    For every debuff the target enemy has, the DMG dealt by the wearer increases by 12%, stacking up to 3 time(s). This effect also applies to DoT.

What Are the Best Relic Sets for Acheron?

Below we've compiled some of the best Relics sets for Acheron to equip, based upon their buffs and how they align with the character's abilities.

Pioneer Diver of Dead Waters

  • 2 Set: Increases DMG dealt to enemies with debuff by 12%.
  • 4 Set: 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).
  • Location: Path of Dreamdive

Izumo Gensei and Takama Divine Realm

  • 2 Set: 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%.
  • Location: Simulated Universe

Priority Stats

  • Body: CRIT DMG
  • Feet: ATK%
  • Sphere: ATK%
  • Link Rope: ATK%

Preferred Sub Stats

  • CRIT DMG
  • CRIT RATE
  • ATK%
  • SPD

Did you find this page on the best builds for Acheron in Honkai: Star Rail helpful? Take a look at our Honkai: Star Rail guide, and let us know in the comments section below.