Best Acheron Build And Teams In Honkai: Star Rail

Acheron is a 5-star Nihility Lightning character in Honkai Star Rail, known for her overwhelming power and ability to debuff enemies. This guide will walk you through the best Acheron build, including optimal Light Cones, Relics, team compositions, and gameplay strategies to maximize her effectiveness.

Acheron Character Overview

Acheron’s abilities revolve around accumulating Slashed Dream points to unleash a devastating Ultimate, while applying Crimson Knot debuffs to amplify her damage. Let’s break down her kit:

• Basic Attack: Trilateral Wiltcross
• Deals Lightning DMG equal to 130% of Acheron’s ATK to a single target.
• While not her primary damage source, it provides a consistent way to chip away at enemies when other skills are unavailable.
• Skill: Octobolt Flash
• Applies 1 stack of Crimson Knot to a target.
• Deals 200% Lightning DMG to the main target and 75% Lightning DMG to adjacent enemies.
• Generates 1 Slashed Dream point.
• This skill is essential for setting up Acheron’s Ultimate, as it applies Crimson Knot while dealing solid AoE damage.
• Ultimate: Slashed Dream Cries in Red
• Once 9 Slashed Dream points are accumulated, Acheron unleashes a series of Rainblade and Stygian Resurge attacks:
• Rainblade: Hits a single target for 28.8% ATK in Lightning DMG, consuming up to 3 stacks of Crimson Knot. Each consumed stack triggers 18% ATK Lightning DMG to all enemies.
• Stygian Resurge: After three Rainblade strikes, unleashes a 144% ATK AoE Lightning DMG burst and removes all Crimson Knots.
• This Ultimate is Acheron’s main damage tool, allowing her to detonate multiple debuffs for massive damage across the battlefield.
• Talent: Atop Rainleaf Hangs Oneness
• Removes enemy Weakness resistance during her Ultimate, allowing her to deal effective damage regardless of elemental matchups.
• Reduces all enemies’ Elemental RES by 25% during her Ultimate.
• Gains 1 Slashed Dream point when an ally inflicts a debuff, also transferring Crimson Knots to the next enemy when a target dies or leaves combat.
• This passive ability makes Acheron a top-tier DPS, ensuring her damage isn’t gated by enemy weaknesses and synergizing perfectly with debuff-heavy teams.
• Technique: Quadrivalent Ascendance
• Initiates battle with an attack that deals 80% ATK Lightning DMG.
• Instantly applies 2 Crimson Knot stacks to a random enemy and grants 2 Slashed Dream points.
• Can instantly eliminate elite enemies before combat starts, making her excellent for farming and exploration.

Acheron’s kit revolves around debuff synergy, Crimson Knot stacking, and building up her Ultimate for maximum burst damage. Whether against bosses or groups of enemies, she delivers consistent, high-impact Lightning damage, making her one of the most powerful Nihility DPS units in Honkai Star Rail.

Best Light Cones for Acheron

To maximize Acheron’s Lightning DPS and debuff synergy, equipping the right Light Cone is crucial. Here are the top choices:
• Along the Passing Shore (5-star) – Acheron’s signature Light Cone, providing immense DMG buffs when enemies have debuffs. It enhances her overall damage scaling and allows her to stack more Crimson Knot debuffs, making it her best-in-slot option.
• Good Night and Sleep Well (4-star) – A great alternative for F2P players, this Light Cone increases damage based on the number of debuffs on the enemy. Since Acheron naturally applies and benefits from multiple debuffs, this Light Cone significantly boosts her overall damage output.

Both Light Cones emphasize debuff stacking, amplifying Acheron’s burst potential and making her even more deadly in Nihility-based team compositions.

Best Relics and Planar Ornaments for Acheron

Choosing the right Relics and Planar Ornaments is essential to maximize Acheron’s damage and boost her debuff-based playstyle. Here are the top recommendations:

Best Relic Sets

• Pioneer Diver of Dead Waters (4-piece) – This is Acheron’s best-in-slot (BiS) relic set, as it enhances her CRIT Rate and significantly increases damage against debuffed enemies, which perfectly aligns with her kit.
• 2-piece Pioneer Diver + 2-piece Band of Sizzling Thunder – A strong alternative that combines Lightning DMG% with increased CRIT stats, making it an ideal hybrid setup if you’re still farming her BiS set.

Best Planar Ornaments

• Izumo Gensei and Takama Divine Realm – The best choice if Acheron is in a Nihility-based team, as it grants a CRIT Rate boost when at least one Nihility ally is present. This helps her achieve higher burst potential with her Ultimate.
• Firmament Frontline: Glamoth – A viable alternative if you can reach the required SPD threshold, as it provides a damage buff when Acheron’s Speed meets a certain limit. This works well if you’re running SPD-focused substats.

By focusing on these Relics and Planar Ornaments, Acheron can maximize her CRIT potential, break through enemy resistances, and unleash devastating Lightning AoE damage.

Best Team Compositions for Acheron

Building the right team for Acheron ensures she reaches her full potential, maximizing debuff application, CRIT boosts, and resistance shredding. Here are two of her strongest team setups:

Nihility Hypercarry Team

This setup focuses on stacking debuffs to amplify Acheron’s Slashed Dream buildup and overall damage output.
• Acheron – The main damage dealer, taking advantage of multiple debuffs to unleash her Ultimate’s devastating multi-hit Lightning attacks.
• Pela – Reduces enemy DEF and applies debuffs to help Acheron generate Slashed Dream points faster.
• Silver Wolf – Provides Weakness Implantation, allowing Acheron to hit enemies with Lightning Weakness while also applying resistance reductions.
• Fu Xuan – A top-tier sustain unit, offering damage reduction, crit buffs, and team-wide survivability without consuming Skill Points, keeping the team SP-efficient.

This highly optimized Nihility-focused team ensures Acheron gets the most debuff stacks, resistance shredding, and energy regeneration for consistent damage.

Eidolon Buff Team (High Investment Setup)

This composition is ideal for players who have Acheron’s Eidolons and want to maximize her damage buffs with strong support units.
• Acheron – The primary DPS, benefiting from additional buffs rather than a full Nihility team.
• Any other Nihility unit – A flexible slot for another debuffer like Welt, Pela, or Silver Wolf, depending on what the team needs.
• Bronya – Grants turn manipulation, damage boosts, and CRIT DMG buffs, pushing Acheron’s damage ceiling even higher.
• Flex Slot – This can be a sustain unit like Fu Xuan or an additional support like Ruan Mei to further enhance damage and Break Effect.

This setup sacrifices some debuffs for more direct buffs to Acheron’s stats, making it ideal for high-Eidolons and high investment builds.

Conclusion

Acheron is a devastating Nihility DPS who thrives in debuff-heavy teams, using Slashed Dream points and Crimson Knots to unleash her incredible Lightning damage. Whether you focus on a Nihility hypercarry setup or an Eidolon buff team, the key to maximizing her potential lies in stacking debuffs, boosting her CRIT stats, and maintaining a steady flow of Skill Points. With the right Light Cone, Relics, and team composition, Acheron becomes an unstoppable force capable of shredding enemy defenses and dealing massive AoE damage. If you’re looking for a powerful and versatile Lightning DPS, Acheron is an excellent investment that will dominate any battle scenario.