Acheron team
Lightning · NihilityLeadsAcheron charges her Ultimate off debuffs other characters apply, so the team runs two more Nihility units and a sustain that never needs a Skill Point.

Galaxy Ranger
Build guide · Honkai: Star Rail
English voice: Allegra Clark
The best Acheron build in Honkai: Star Rail (Version 4.4) is Along the Passing Shore with Pioneer Diver of Dead Waters. Updated August 28, 2026
Aim to maintain a ratio of 1% CRIT RATE per 2% CRIT DMG with a good stat line in endgame being 80% CRIT RATE and 160% CRIT DMG to start with.
#1
Ultimate
Max first
#2
Skill = Talent
Then
#3
Basic
Next
Major traces, best first: The Abyss (A4) > Thunder Core (A6) > Red Oni (A2)
When dealing DMG to debuffed enemies, increases CRIT Rate by 18%.
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.
When enemy targets enter combat, inflicts them with the Ultimate DMG Vulnerability, increasing the amount of Ultimate DMG they take by 8%.
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.
Acheron charges her Ultimate off debuffs other characters apply, so the team runs two more Nihility units and a sustain that never needs a Skill Point.
Honkai: Star Rail 5★ Lightning Nihility Support
Along the Passing Shore tops the light cone ranking for Acheron, at 125.50% relative damage at S1, ahead of Incessant Rain, Good Night and Sleep Well and Boundless Choreo. That order is prydwen.gg's, measured in play and rephrased here; every row of it sits under Light cones below.
Run Pioneer Diver of Dead Waters on Acheron, with Scholar Lost in Erudition and Band of Sizzling Thunder behind it. The planar ornament is Izumo Gensei and Takama Divine Realm. Main stats are CRIT Rate >= CRIT DMG body, ATK% > Speed feet, ATK% > Lightning DMG sphere, ATK% rope. Roll substats in the order SPD (breakpoint if you play 134+ Acheron; with Sparkle, fully ignore Speed) > CRIT RATE = CRIT DMG > ATK%.
Trace priority is Ultimate > Skill = Talent > Basic. The Ultimate costs 9 energy, which is what an Energy Regeneration Rate target has to clear.
The strongest team is Acheron, Jiaoqiu, Pela and Aventurine, built around Acheron — Lightning · Nihility.
Deals Lightning DMG equal to 100% of Acheron's ATK to one designated enemy target.
Ability level
6 is the cap from trace materials; Eidolons add the rest.
| Attribute | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
|---|---|---|---|---|---|---|---|---|---|---|
| Basic ATK DMG | 50% | 60% | 70% | 80% | 90% | 100% | 110% | 120% | 130% | 140% |
Gains 1 point(s) of "Slashed Dream." Inflicts 1 stack(s) of "Crimson Knot" on one designated enemy target, dealing Lightning DMG equal to 160% of Acheron's ATK to this target, as well as Lightning DMG equal to 60% of Acheron's ATK to adjacent targets.
Ability level
10 is the cap from trace materials; Eidolons add the rest.
| Attribute | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Skill DMG | 80% | 88% | 96% | 104% | 112% | 120% | 130% | 140% | 150% | 160% | 168% | 176% | 184% | 192% | 200% |
| Adjacent DMG | 30% | 33% | 36% | 39% | 42% | 45% | 49% | 53% | 56% | 60% | 63% | 66% | 69% | 72% | 75% |
Sequentially unleash "Rainblade" 3 times and "Stygian Resurge" 1 time, dealing Lightning DMG up to 372% of Acheron's ATK to one designated enemy target, as well as Lightning DMG up to 300% of Acheron's ATK to other targets. "Rainblade": Deals Lightning DMG equal to 24.0% 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 15.0% 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 60.0%. "Stygian Resurge": Deals Lightning DMG equal to 120% of Acheron's ATK to all enemies and remove all "Crimson Knots." "Crimson Knot" cannot be applied to enemies during the Ultimate.
Ability level
10 is the cap from trace materials; Eidolons add the rest.
| Attribute | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Ultimate DMG | 223% | 238% | 253% | 268% | 283% | 298% | 316% | 335% | 353% | 372% | 387% | 402% | 417% | 432% | 446% |
| Ultimate DMG (2) | 180% | 192% | 204% | 216% | 228% | 240% | 255% | 270% | 285% | 300% | 312% | 324% | 336% | 348% | 360% |
| Ultimate DMG (3) | 14.4% | 15.4% | 16.3% | 17.3% | 18.2% | 19.2% | 20.4% | 21.6% | 22.8% | 24.0% | 25.0% | 25.9% | 26.9% | 27.8% | 28.8% |
| AoE DMG | 9.0% | 9.6% | 10.2% | 10.8% | 11.4% | 12.0% | 12.8% | 13.5% | 14.2% | 15.0% | 15.6% | 16.2% | 16.8% | 17.4% | 18.0% |
| Ultimate DMG (4) | 36.0% | 38.4% | 40.8% | 43.2% | 45.6% | 48.0% | 51.0% | 54.0% | 57.0% | 60.0% | 62.4% | 64.8% | 67.2% | 69.6% | 72.0% |
| AoE DMG (2) | 72% | 77% | 82% | 86% | 91% | 96% | 102% | 108% | 114% | 120% | 125% | 130% | 134% | 139% | 144% |
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 20%, 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.
Ability level
10 is the cap from trace materials; Eidolons add the rest.
| Attribute | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Reduction | 10% | 11% | 12% | 13% | 14% | 15% | 16% | 18% | 19% | 20% | 21% | 22% | 23% | 24% | 25% |
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.
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).
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.
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.
Totals at full unlock, summed across every node of that stat. Ascension rank gates the nodes as it gates the Bonus Abilities above.
Level 80 and every ability maxed
2,265,500
Credits 12 material lines
Ascension to 80
308,000
Credits 4 materials · 6 steps
All 3 abilities maxed
1,957,500
Credits 3× the single-ability bill
Dream Collection Component ×54,000Credits
Dream Collection Component ×108,000Credits
Shape Shifter's Lightning Staff ×3
Dream Flow Valve ×616,000Credits
Shape Shifter's Lightning Staff ×7
Dream Flow Valve ×940,000Credits
Dream Making Engine ×6
Shape Shifter's Lightning Staff ×2080,000Credits
Dream Making Engine ×9
Shape Shifter's Lightning Staff ×35160,000Credits
Total to level 80
308,000 Credits
Dream Making Engine ×15
Shape Shifter's Lightning Staff ×65
Dream Flow Valve ×15
Dream Collection Component ×15
Dream Collection Component ×32,500Credits
Dream Collection Component ×6
Fiery Spirit ×35,000Credits
Dream Flow Valve ×3
Starfire Essence ×310,000Credits
Dream Flow Valve ×4
Starfire Essence ×520,000Credits
Dream Flow Valve ×6
Starfire Essence ×730,000Credits
Dream Making Engine ×3
Heaven Incinerator ×345,000Credits
Dream Making Engine ×4
Heaven Incinerator ×5
Past Evils of the Borehole Planet Disaster ×180,000Credits
Tracks of Destiny ×1
Heaven Incinerator ×8
Past Evils of the Borehole Planet Disaster ×1160,000Credits
Tracks of Destiny ×1
Heaven Incinerator ×14
Past Evils of the Borehole Planet Disaster ×1300,000Credits
One ability maxed
652,500 Credits
Tracks of Destiny ×2
Dream Making Engine ×7
Heaven Incinerator ×30
Past Evils of the Borehole Planet Disaster ×3
Dream Flow Valve ×13
Starfire Essence ×15
Dream Collection Component ×9
Fiery Spirit ×3All 3 abilities maxed
1,957,500 Credits
Tracks of Destiny ×6
Dream Making Engine ×21
Heaven Incinerator ×90
Past Evils of the Borehole Planet Disaster ×9
Dream Flow Valve ×39
Starfire Essence ×45
Dream Collection Component ×27
Fiery Spirit ×9When dealing DMG to debuffed enemies, increases CRIT Rate by 18%.
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.
Ultimate Lv. +2, up to a maximum of Lv. 15. Basic ATK Lv. +1, up to a maximum of Lv. 10.
When enemy targets enter combat, inflicts them with the Ultimate DMG Vulnerability, increasing the amount of Ultimate DMG they take by 8%.
Skill Lv. +2, up to a maximum of Lv. 15. Talent Lv. +2, up to a maximum of Lv. 15.
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.