Acheron Complete Build Guide

Overview

Acheron is a 5-star Lightning Nihility character and one of the strongest DPS units in Honkai: Star Rail. Her unique mechanic revolves around "Slashed Dream" stacks that she gains when any ally applies debuffs to enemies.

Why Acheron is Top Tier

• Massive AoE Ultimate damage
• Unique debuff-based gameplay
• Works with many team compositions
• Excellent in all endgame content (MoC, PF, AS)

Best Relic Sets

1. Pioneer Diver of Dead Waters (4pc) - Best in Slot

• 2pc: Increases DMG dealt to debuffed enemies by 12%
• 4pc: Increases CRIT Rate by 4%. When hitting debuffed enemies, increases CRIT DMG by 8%/12% based on debuff count
• Why: Perfect synergy with her debuff-focused kit

2. Alternative Options

• 4pc Prisoner in Deep Confinement (for DoT teams)
• 2pc Pioneer + 2pc Musketeer/Genius

Planar Ornaments

• Izumo Gensei and Takama Divine Realm - Best if teammate shares path
• Inert Salsotto - Universal option for CRIT builds
• Firmament Frontline: Glamoth - If SPD requirements met

Main Stats

Substat Priority

1. CRIT Rate / CRIT DMG (aim for 70:140+)
2. ATK%
3. SPD (reach breakpoints)
4. Effect Hit Rate (some builds)

Best Light Cones

1. Along the Passing Shore (Signature) - Best overall
2. Reforged Remembrance - Strong alternative
3. Good Night and Sleep Well (4★) - F2P friendly
4. Fermata (4★) - Budget option

Team Compositions

Classic Acheron Team

• Acheron + Jiaoqiu + Pela + Fu Xuan
• Jiaoqiu provides constant debuffs for Slashed Dream
• Pela for DEF shred and extra debuffs
• Fu Xuan for survivability

Double Nihility

• Acheron + Kafka + Black Swan + Huohuo
• DoT-focused team with constant debuff application

Budget Team

• Acheron + Pela + Guinaifen + Sustain
• All 4-star supports work well

Gameplay Tips

1. Stack Management: Track Slashed Dream stacks (need 9 for Ultimate)
2. Debuff Priority: Use allies' debuffs before Acheron's turn
3. Ultimate Timing: Save Ultimate for wave with most enemies
4. Eidolon 0 Viable: She's strong at E0S0

Talent Priority

1. Ultimate (main damage source)
2. Skill
3. Talent (passive)
4. Basic ATK (lowest priority)