If you are trying to find the best build for Acheron Honkai Star Rail, we have got you covered! In this detailed guide, you will find everything you need to know about building Acheron and how to use it effectively on the battlefield.
Acheron is a newly released 5-star lightning character. We will talk about her abilities, best light cones, Relics, and team compositions so that you are well-informed before building Acheron in Honkai Star Rail. Get ready to take your gameplay to the next level with our Honkai Star Rail Acheron Build Guide!
Who is Honkai Star Rail Acheron?
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Acheron is a 5-star character aligned with the Lightning element. She follows the Path of Nihility. Acheron presents herself as a wandering drifter, professing to be a Galaxy Ranger. Her true identity remains shrouded in mystery, as she walks the cosmos alone, accompanied only by her long sword. Despite her aloof and reserved nature, her swordsmanship is as swift and formidable as lightning. Yet she strikes with her scabbard instead of unsheathing her sword, adding an intriguing layer of enigma to her combat style. |
Honkai Star Rail Acheron’s Abilities
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Abilities |
Effect |
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Basic Attack |
Trilateral Wiltcross |
Acheron deals Lightning damage equal to 50% of his ATK to a single enemy target. |
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Skill |
Octobolt Flash |
Acheron gains 1 point of Slashed Dream. He inflicts 1 stack of Crimson Knot on a single target enemy, dealing Lightning damage equal to 80% of Acheron’s ATK, and also deals Lightning damage equal to 30% of Acheron’s ATK to adjacent targets. |
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Ultimate |
Slashed Dream Cries in Red |
Acheron sequentially unleashes Rainblade 3 times and Stygian Resurge 1 time. This deals Lightning damage up to 223% of Acheron’s ATK to a single target enemy, and 180% of Acheron’s ATK to other enemies. |
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Ultimate |
Rainblade effect |
Acheron deals Lightning damage equal to 14.4% of his ATK to a single target enemy and removes up to three stacks of Crimson Knot. Removing Crimson Knot deals Lightning damage equal to 9% of Acheron’s ATK to all enemies. The damage multiplier increases by up to a maximum of 36% for every stack of Crimson Knot removed. |
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Ultimate |
Stygian Resurge effect |
Acheron deals Lightning damage up to 72% of his ATK to all enemies and removes all Crimson Knots. Crimson Knot cannot be applied during the Ultimate. |
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Talent |
Atop Rainleaf Hangs Oneness |
When the Slashed Dream gauge reaches 9 points, the Ultimate ability can be triggered. While the Ultimate is active, the enemy's Toughness is diminished regardless of their Weakness Type, and their All-Type Resistance is decreased by 10%, lasting until the Ultimate ends. Additionally, whenever a unit applies debuffs to an enemy target, Acheron accumulates 1 point of Slashed Dream and inflicts Crimson Knot upon the enemy target. If debuffs are inflicted on multiple targets, 1 stack of Crimson Knot will be inflicted on the enemy target with the most Crimson Knot stacks. If a target leaves the battlefield while Acheron is present, their Crimson Knot stacks will be transferred to the enemy possessing the highest number of Crimson Knot stacks. |
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Technique |
Quadrivalent Ascendance |
Acheron immediately attacks the enemy. At the start of each wave, she gains Quadrivalent Ascendance, dealing Lightning damage equal to 200% of Acheron's attack to all enemies and reducing the Toughness of all enemies regardless of Weakness Types. When weakness is broken, triggers the Lightning Weakness Break effect. After deploying her Ultimate, Acheron acquires a point of Slashed Dream and imposes one stack of Crimson Knot upon a randomly selected enemy. When targeting a standard adversary, Acheron promptly vanquishes them without initiating combat. In the event that an opponent remains unscathed by Acheron's Technique, no Technique Points are expended. |
Honkai Star Rail Acheron’s Eidolons
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Eidolons |
Effect |
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E1 |
Silenced Sky Spake Sooth |
Acheron's Crit Rate increases by 18% when she deals damage to debuffed enemies. |
| E2 |
Mute Thunder in Still Tempest |
Reduces the number of characters on the Path of Nihility required to achieve the highest possible effect of the Abyss trace skill by one. And, at the start of her turn, Acheron gains one point of Slashed Dream and inflicts one stack of Crimson Knot on the enemy with the most Crimson Knot stacks. |
| E3 |
Frost Bites in Death |
Increases the level of Acheron's Ultimate by two with a maximum upgrade level of 15, and increases the level of her Basic Attack by one with a maximum upgrade level of 10. |
| E4 |
Shrined Fire for Mirrored Soul |
When hostile targets engage in combat, they suffer from the Ultimate Damage Vulnerable state, which amplifies the Ultimate damage they receive by 8%. |
| E5 |
Strewn Souls on Erased Earths |
Increases the level of Acheron's Skill and Talent by two, with a maximum upgrade level of 15. |
| E6 |
Apocalypse, the Emancipator |
The Acheron's Ultimate Damage sees a 20% boost in All-Type Resistance Penetration. Moreover, both her basic attacks and skills inflict Ultimate damage, thus lowering enemy toughness irrespective of Weakness Types. Breaking Weakness triggers the Lightning Weakness Break effect. |
Honkai Star Rail Acheron’s Best Light Cones
Here are the best Light Cones for Honkai Star Rail Acheron:
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Along the Passing Shore ★★★★★ Optimal 5-Star Choice Ability: Increases the wearer's CRIT DMG by 36-60%. How to Obtain: Gacha weapon banner |
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In the Name of the World ★★★★★ Alternative 5-Star Option |
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Good Night and Sleep Well ★★★★ Alternative 4-Star Option Ability: For every debuff the target enemy has, the DMG dealt by the wearer increases by 12-24%, stacking up to 3 times. This effect also applies to DoT. |
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The best Light Cone for your Acheron build is the 5-star Along the Passing Shore which offers a massive Critical Damage boost. Acheron's swift DPS style and multiple-target attacks make it easy to activate the Empty Bubble effect, significantly enhancing her Ultimate attack.
If you're seeking an alternative 5-star Light Cone, consider that many Nihility Light Cones offer Energy and Effect Hit Rate boosts, which may not be necessary for your Acheron build. However, In the Name of the World stands out as a great option, improving Acheron's Skill damage and granting a permanent damage bonus against debuffed opponents.
For the best 4-star Light Cone, Good Night and Sleep Well is an ideal choice because it grants an attack bonus when attacking debuffed enemies.
Honkai Star Rail Acheron’s Best Relics
Here's an overview of the best Relics and Planar Ornaments for your Honkai Star Rail Acheron build.
Pioneer Diver of Dead Waters stands out as the best Relic set for your Acheron build due to its increased damage against debuffed enemies. Additionally, it grants an 8% Critical Rate and a 24% Critical Damage bonus when inflicting a debuff against an opponent already debuffed (with at least three debuffs). If you lack the Pioneer Diver set, consider using a two-piece Band of Sizzling Thunder (Lightning) combined with any attack-oriented set, such as the Musketeer Relics.
For Planar Ornaments, the Izumo Gensei and Takama Divine Realm set is the top choice as it significantly enhances Acheron's Critical Rate and Attack stats. However, keep in mind that you'll need another Nihility character on your team to unlock the full Critical Rate bonus. If you don't possess the Izumo set, Firmament Frontline: Glamoth is a viable alternative. Even at a Speed level of 135, it provides a respectable 12% Attack and 12% damage bonus, making it almost as effective as Izumo.
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Pioneer Diver of Dead Waters 2-piece: Increases DMG dealt to enemies with debuffs by 12%. |
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Izumo Gensei and Takama Divine Realm 2-piece: Increases the wearer’s ATK by 12%. When entering battle, if at least one other ally follows the same Path as the wearer, the wearer’s CRIT Rate increases by 12%. |
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Firmament Frontline: Glamoth 2-piece: Increases the wearer's ATK by 12%. When the wearer's SPD is equal to or higher than 135/160, the wearer deals 12%/18% more DMG. |
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Honkai Star Rail Acheron’s Best Stats
Here is the optimal stats distribution for Acheron.
Body: Critical Damage, Critical Rate
Planar Sphere: Lightning Damage Boost, ATK%
Link Rope: ATK%
Sub stats: Critical Rate, Critical Damage, Speed, ATK%
For the main Relic stat on the Body slot, prioritize either Critical Rate or Critical Damage. Choose Critical Damage only if you already have a high Critical Rate (over 75%). Lightning Damage Boost and ATK% are crucial for maximizing Acheron's damage output. However, if you need to reach specific Speed thresholds (at least 135 when using the Firmament Frontline: Glamoth Planar Ornament set), consider selecting Speed for the Feet slot.
If Speed isn't a primary Relic stat, opt for the Izumo Gensei Planar Ornament and focus on obtaining additional Speed from sub-stats instead. Remember, Acheron doesn't require Energy, so avoid allocating Relic slots for that purpose.
Honkai Star Rail Acheron’s Ascension Materials
To fully upgrade Acheron’s capabilities, you'll need to ascend her. The total Ascension Materials you will need to ascend Acheron are,
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Dream Collection Component*15
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Dream Flow Valve*15
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Dream Making Engine*15
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Shape Shifter's Lightning Staff*65
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Credits*308,000
Honkai Star Rail Acheron’s Best Team Composition
To build the best team for Acheron, make her the main DPS character who benefits from various attack bonuses but does not require extra Energy. It's essential to include at least one Nihility character to unlock 'The Abyss' Trace Bonus effect which enhances the damage output of her Skill and Ultimate by up to 160%.
While selecting the Nihility character, prioritize those who apply debuffs to weaken enemies, thereby improving Acheron's damage potential and ensuring she benefits from all debuff-based bonuses from her Light Cone and Relics. Ideal allies for your Acheron team composition include characters like Pela, Silver Wolf, and Welt. Alternatively, DoT Nihility characters like Kafka and Black Swan can also be considered, focusing more on building Slashed Dream and Crimson Knot stacks rather than directly weakening opponents.
Here are two examples of effective Acheron team compositions:
Acheron Debuff Team:
DPS: Acheron
Debuff/Sub DPS: Silver Wolf
Debuff/Sub DPS: Pela
Shield provider: Gepard (or alternative healer/shield provider)
Acheron | Silver Wolf | Pela | Gepard
Acheron will be the main DPS, supported by Silver Wolf and Pela, who apply debuffs to enemies, assisting Acheron in gaining Slashed Dream and Crimson Knot stacks. Gepard provides support by maintaining the team's health, although he can be replaced by another healer or shield provider if needed.
Acheron DoT Team:
DPS: Acheron
DoT DPS: Kafka
Debuff support: Black Swan
Buff support: Ruan Mei (or alternative support character)
Acheron | Kafka | Black Swan | Ruan Mei
Here Acheron and Kafka share the DPS role. Kafka specializes in inflicting a significant number of debuffs through her Ultimate and subsequent attacks. Black Swan supports by debuffing and weakening enemies, potentially using her Basic Attack to trigger Kafka's follow-up attacks.
Having two strong DPS characters on the same team can make it challenging to maximize their damage output efficiently. Therefore, Ruan Mei, who buffs all DPS characters rather than focusing on just one, would be an ideal fourth ally. However, this composition is only sustainable if your team can defeat enemies quickly enough to leave out the need for a dedicated healer or shield provider.
While this is a good Acheron team, the first team comp will be easier to execute effectively.