Honkai Star Rail Acheron materials, kit, and Eidolons

Acheron is a 5-Star Lightning character of The Nihility path who debuted in Honkai: Star Rail during version 2.1.

While Acheron is featured as the boosted 5-Star character on her Words of Yore Banner in version 2.1, she will eventually return to Honkai: Star Rail at some point in the future when the Banner schedule cycles back to her.

If you want to prepare for if you Warp for her successfully, we've detailed Acheron's Ascension materials and Trace materials so you can level her up to her full potential right away. To understand how you might play her, we've also detailed Acheron's kit and Eidolons.

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Honkai Star Rail Acheron kit

Acheron is a 5-Star Lightning character of The Nihility path who deals damage by building and getting rid of stacks to unleash her Ultimate. Acheron also works very well with Nihility debuffers, as her personal damage increases when enemies have multiple debuffs applied.

All of the percentages mentioned below are based on Level 1 Traces.

Here's a summary of Acheron's kit in Honkai Star Rail:

• Element: Lightning.
• Path: The Nihility.
• Rarity: 5-Star.
• Basic Attack: Trilateral Wiltcross - Deals Lightning damage equal to 50% of Acheron's attack to a single enemy.
• Skill: Octobolt Flash - Acheron gains one point of Slashed Dream, inflicts one stack of Crimson Knot on a single target enemy, and deals Lightning damage equal to 80% of her attack to that enemy, as well all Lightning damage equal to 30% of her attack to adjacent enemies.



• Ultimate: Slashed Dream Cries in Red - Acheron Sequentially unleashes Rainblade three times and Stygian Resurge one time, dealing Lightning damage up to 223% of Acheron's attack to a single target enemy, as well as Lightning damage up to 180% of Acheron's attack to other targets.
• Rainblade - Deals Lightning damage equal to 14.4% of Acheron's attack to a single target enemy and removes up to three stacks of Crimson Knot from the target. When Crimson Knot is removed, Acheron immediately deals Lightning damage equal to 9% of her attack to all enemies. For every stack of Crimson Knot removed, this damage multiplier is additionally increased, up to a maximum of 36%.
• Stygian Resurge - Deals Lightning damage equal to 72% of Acheron's attack to all enemies and removes all Crimson Knots, but Crimson Knot can't be applied to enemies during the Ultimate.
• Talent (passive ability): Atop Rainleaf Hangs Oneness - When Slashed Dream reaches nine stacks, Acheron's Ultimate can be unleashed, which lowers enemies' Toughness regardless of their Weakness Types and also lowers their All-Type Resistance by 10% until the end of Acheron's Ultimate. When any unit inflicts debuffs on an enemy while using their ability, Acheron gains one stack of Slashed Dream and inflicts Crimson Knot on that enemy target. If the ability used inflicts a debuff on multiple enemies, one stack of Crimson Knot is inflicted on the enemy with the most Crimson Knot stacks. This effect can only trigger once per every ability usage. When Acheron is on the field and an enemy leaves the field or is defeated, their Crimson Knot stacks will be transferred to the enemy target with the most Crimson Knot stacks.
• Technique (overworld ability): 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 Toughness of all enemies irrespective of Weakness Types. When weakness is broken, triggers the Lightning Weakness Break effect.
  • Quadrivalent Ascendance - After using her Ultimate, Acheron gains one point of Slashed Dream and inflicts one stack of Crimson Knot on a single random enemy. If attacking a normal enemy, Acheron immediately defeats them without entering combat. If an enemy isn't hit while using Acheron's Technique, no Technique Points are consumed.
• Bonus Trace 1: Red Oni - At the start of battle, Acheron immediately gains five stacks of Slashed Dream and applies five stacks of Crimson Knot to a random enemy. When Slashed Dream reaches its upper limit, for every point of Slashed Dream that exceeds the limit, Acheron gains one stack of Quadrivalent Ascendance. Also increases the maximum stackable count for Quadrivalent Ascendance to three.
• Bonus Trace 2: The Abyss - When there are one or two other characters following the Path of Nihility in the team, the damage of Acheron's basic attack, Skill, and Ultimate increases to 115% or 160% of its original damage, respectively.
• Bonus Trace 3: Thunder Core - When the Rainblade from Acheron's Ultimate hits enemies with Crimson Knot, her damage increases by 30%, stacking up to a maximum of three times and lasting for three turns. Additionally, Acheron deals six hits of damage when Stygian Resurge is triggered, with every hit dealing Lightning damage equal to 25% of Acheron's attack to a single enemy. This is considered Ultimate damage.

Honkai Star Rail Acheron Ascension materials

You need to use Acheron Ascension materials to upgrade stats like her health, attack, defence, and critical hit effectiveness.

You need to get a lot of Shape Shifter's Lightning Staff and Dream-based materials for Acheron to fully upgrade her capabilities. In total, the Acheron Ascension Materials in Honkai: Star Rail are:

• x15 Dream Collection Component
• x15 Dream Flow Valve
• x15 Dream Making Engine
• x65 Shape Shifter's Lightning Staff
• 308,000 Credits

For more details, here's what Acheron Ascension materials you need per level:

Honkai Star Rail Acheron Trace materials

Just like Ascension, to get the most out of using Acheron you will have to level-up her attacks and passive abilities by using Trace materials, which vary from character-to-character.

For Acheron, you need to use a lot of Fiery Sprite and Dream-based materials to fully upgrade her capabilities.

In total, to upgrade all of her abilities, the Acheron Trace Materials you need are:

• x8 Tracks of Destiny
• x12 Past Evils of the Borehole Planet Disaster
• x18 Fiery Spirit
• x41 Dream Collection Component
• x56 Dream Flow Valve
• x58 Dream Making Engine
• x69 Starfire Essence
• x139 Heaven Incinerator
• 3 million Credits

Honkai Star Rail Acheron Eidolons

By getting duplicates of Acheron from Warping on her Banner, you will receive her Eidolon. This material allows you to unlock Eidolon levels, with each upgrade either improving an existing attack or passive ability.

Here are all of Acheron's Eidolons in Honkai: Star Rail:

• Silenced Sky Spake Sooth (E1): Acheron's Crit Rate increases by 18% when dealing damage to debuffed enemies.
• Mute Thunder in Still Tempest (E2): The number of characters on the Path of Nihility required to achieve the highest possible effect of the The Abyss trace skill is reduced by one. Additionally, when this unit's turn starts, gains one point of Slashed Dream and inflicts one stack of Crimson Knot on the enemy with the most Crimson Knot stacks.
• Frost Bites in Death (E3): 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.
• Shrined Fire for Mirrored Soul (E4): When enemy targets enter combat, they are afflicted with the Ultimate Damage Vulnerable Vulnerability state, increasing the amount of Ultimate damage they take by 8%.
• Strewn Souls on Erased Earths (E5): Increases the level of Acheron's Skill and Talent by two, with a maximum upgrade Level of 15.
• Apocalypse, the Emancipator (E6): Increases the All-Type Resistence Penetration dealt by Acheron's Ultimate damage by 20%. The damage dealt by her basic attack and Skill are also considered Ultimate damage, and can reduce enemy toughness regardless of Weakness Types. When Weakness is broken, the Lightning Weakness Break effect is triggered.

Good luck levelling up Acheron in Honkai Star Rail!