Acheron — Honkai: Star Rail

Build recommendations

Best light cones

Best relics

Best planar ornaments

Best stats & substats

Best stats

Body: CRIT Rate / CRIT DMG:
Feet: Speed / ATK%:
Planar sphere: ATK% / Lightning DMG:
Link rope: ATK%:

Best substats

Priority 1: CRIT Rate / CRIT DMG
Priority 2: ATK%
Priority 3: Speed
Priority 4: Effect RES

Skills

Basic ATK Trilateral Wiltcross

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Deals Lightning DMG equal to 50% of Acheron's ATK to one designated enemy target.

Skill Octobolt Flash

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Gains 1 point(s) of "Slashed Dream." Inflicts 1 stack(s) of "Crimson Knot" on one designated enemy target, 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.

Ultimate Slashed Dream Cries in Red

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Sequentially unleash "Rainblade" 3 times and "Stygian Resurge" 1 time, dealing Lightning DMG up to 223.2% of Acheron's ATK to one designated enemy target, as well as Lightning DMG up to 180% of Acheron's ATK to other targets. "Rainblade": Deals Lightning DMG equal to 14.4% of Acheron's ATK to one designated enemy target 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, this DMG Multiplier 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

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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 a 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 for every ability use. 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 Attack

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Attacks an enemy, and after entering combat, reduces their Toughness of the corresponding Type.

Technique Quadrivalent Ascendance

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Immediately attacks the enemy. At the start of each wave, gains Quadrivalent Ascendance, dealing Lightning DMG equal to 200% of Acheron's ATK to all enemies and reducing Toughness of all enemies irrespective of Weakness Types. When breaking Weaknesses, triggers the Lightning Weakness Break effect. Quadrivalent Ascendance: After using the Ultimate, Acheron gains 1 point(s) of Slashed Dream and inflicts 1 stack(s) of Crimson Knot on a single random enemy. If attacking a normal enemy, immediately defeats them without entering combat. When not hitting enemies, no Technique Points are consumed.

Ultimate Rainblade

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Deals minor Lightning DMG to one enemy, and removes up to 3 stacks of "Crimson Knot" from the target. When "Crimson Knot" is removed, deals minor Lightning DMG to all enemies 1 time, with this DMG multiplier increased for every stack of "Crimson Knot" removed.

Ultimate Rainblade

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Ultimate Rainblade

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Ultimate Stygian Resurge

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Deals Lightning DMG to all enemies and removes all Crimson Knots.

Passive talents

Major trace Red Oni

Ascension 2

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. Enables Quadrivalent Ascendance to stack up to 3 time(s).

Major trace The Abyss

Ascension 4

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.

Major trace Thunder Core

Ascension 6

When the Ultimate's Rainblade hits enemy targets that have Crimson Knot, the DMG dealt by Acheron 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 considered as Ultimate DMG.

Minor trace ATK +28%

Minor trace CRIT DMG +24%

Minor trace Lightning DMG Boost +8%

Dupes / advancement

Rank 1 Silenced Sky Spake Sooth

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

Rank 2 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.

Rank 3 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.

Rank 4 Shrined Fire for Mirrored Soul

When enemy targets enter combat, inflicts them with the Ultimate DMG Vulnerability, increasing the amount of Ultimate DMG they take by 8%.

Rank 5 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.

Rank 6 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 breaking Weaknesses, triggers the Lightning Weakness Break effect.

Materials summary

Credit
Dream Collection Component
Dream Flow Valve
Dream Making Engine
Fiery Spirit
Heaven Incinerator
Past Evils of the Borehole Planet Disaster
Starfire Essence
Tracks of Destiny

Tier placements

Not listed on any active tier list snapshot yet.

Related guides

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