Acheron (Honkai: Star Rail)

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==Summary==
, more commonly known as "Acheron", is a drifter claiming to be a Galaxy Ranger. She walks the cosmos alone, carrying with her a long sword. 
Though aloof and taciturn, her blade flicks out like lashing lightning. And yet, she always strikes with her scabbard, never drawing the sword free.
==Powers and Stats==
Tier: , far higher with Unsheathed Sword
Name: Acheron, Raiden Bosenmori Mei (True Name), Acheron the Watcher
Origin: Honkai: Star Rail
Gender: Female
Age: Unknown
Classification: Oni, Self-Annihilator, Emanator of Nihility, Galaxy Ranger (Self-Proclaimed)
Powers and Abilities:
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*Superhuman Physical Characteristics
*Extrasensory Perception (Enhanced Sight) & Enhanced Senses 
**(Neutral Vision & Soul Vision; Can see soulsThe Stars Are Cold ToysGhost of the PastSpecies of the Galaxy: Wubbaboo)
*Master Swordswoman (Acheron is highly proficient with the sword being able to fight using only the scabbard itself. She has fought with the blade for many years against the Yaoyorozu-no-Kami.Myriad Celestia Trailer — Kyoden: A Cleave Across the Transient World | Honkai: Star Rail She can also take on Blade and Kafka, 2 masters of the sword, although they were illusions created by SparkleAcheron Trailer — Your Color | Honkai Star Rail)
**Electricity Manipulation (All of her attacks deal lightning damage)
**Danmaku & Energy Projection (Acheron can fire multiple slashes of energy made out of her electricity)
*Martial Arts & Acrobatics (Hypermobility; Despite mainly being a swordswoman, Acheron is also proficient in Martial Arts and Acrobatics as she incorporates them into battle together with her swordswomanship)
*Stealth Mastery (Using WhiteBated Breath, Acheron can conceal herself and others near herThe Tell-Tale Heart)
*Non-Physical Interaction 
**(Spiritual, Mental & Information (Type 2); Can interact with souls)
**(Energy; Can interact with a Stellaron which is composed of pure energy.Chaos in the DeepData Bank Should be able to interact with a Heliobus like the TrailblazerA Foxian Tale of the Haunted)
**(Memories; Should be able to interact with memories like the MCMemory Bubble and Fu XuanTotal Recall)
**(Data; Can interact with a Stellaron made out of dataMyriad Celestia Trailer: The Jepella Rebellion — Scene 47 | Honkai: Star Rail and Aether Spirit which are also composed of dataAetherium Wars)
**(Elemental; Acheron can interact with Duke Inferno who is a being made out of flamesThe Devil in Velvet)
**(Abstract Existence (Type 2) - Concept (Type 3): Vision, Sight & Death; Can affect Allseer, which embodies the concepts of vision and sightVersion 2.0 If One Dreams At Midnight Special Program as well as Something Unto Death, which is a sort of figurative amalgam of complex concepts, which for now is known as death)
*Limited Madness Manipulation (Type 3; Can traumatize those who attempt to look into her mindAnimated Short: Rondo Across Countless Kalpas | Honkai: Star Rail)
*Acausality (Type 2; Acheron does not show up in Elio's script even though he can see an infinite amount of possible futures and she no past as The Nihility erased it.Stranger in a Strange Land When one walks on the Paths formed by Aeons, their various possibilities will eventually collapse into a single one,Loading Screen as fate are weaved under their radiance)
*Dimensional Travel (12-D, possibly Ω; Emanators can travel through imaginary spaces and the boundary between worlds)
*Empowerment & Imaginary Energy Manipulation (Type 2 - 12-D, possibly Ω; As a Pathstrider and Emanator of the Nihility's path,Cat Among PigeonsWhen the Sacred Ginmill ClosesA Walk Among the TombstonesAcheron Character Story: Part IV Acheron is capable of drawing Imaginary Energy from Paths which is a part of imaginary element, with the imaginary space being both the metaphysical world and a higher-dimensional plane. Emanators were directly bestowed power from their respective Aeons)
*Passive Probability Manipulation (When one walks on a Path their various possibilities collapses into a single entityLoading Screen)
*Transformation & Statistics Amplification (When Acheron unsheathes her sword to reveal her true powers as an Emanator of Nihility, she undergoes a transformation that increases all of her capabilities drastically and gains a plethora of abilities)
**Enhanced Non-Physical Interaction (Abstract Existence (Type 1) & Concept (Type 1): Nihility - Nonexistent Physiology: All Natures, All Aspects - 12-D, possibly Ω; Acheron can interact with a manifestation of IXAnd on the Eighth Day)
**Durability Negation (12-D, possibly Ω; While transformed, all of Acheron's attacks negates the conventional durability, since her sword can cut through dimensions and spacetimes)
**Space-Time Manipulation (12-D, possibly Ω; Drawing her sword causes space and time to instantly freeze)
**Fate Manipulation (12-D, possibly Ω; Acheron can sever fate itself with her blade)
**Pocket Reality Manipulation, Dimensional BFR & Black Hole Creation (12-D, possibly Ω; Acheron can send people to the "Horizon of Existence", often referred to as the Border of Nihility,Data Bank: Terms an endless domain that stands between the boundary of nonexistence under IX's shadow,Along the Passing Shore where there is one of the thousands of IX's manifestations where time is frozen.Version 2.1 Into the Yawning Chasm Special Program Those who end up at the Horizon will irreversibly move towards the Border with no possibility of escape)
**Void Manipulation & Causality Manipulation (12-D, possibly Ω; Anything venture into IX will leave nothing behind not even the trace of past and future, as THEY opposed the very concept of existence as Nihility. As an Emanator of Nihility, Acheron has walked the Nihility's Path farthest among the Pathstriders of the same path,Acheron Character Story: Part III being able to deny anything to 'Nihility' of the absolute void, making the enemies and objects vanish from the existence along of their meaning as if they never existed,Keeping up with Star Rail — Acheron: Another Fall of Rain, _______ _____ ______ | Honkai: Star Rail with Black Swan claiming that Acheron can cut off cause and effect as she did to the history of Izumo and Takama, erasing it to the point the Remembrance cannot recall itAcheron Character Story: Part IIData Bank: Planar Ornaments)
**Power Nullification & Statistics Reduction (12-D, possibly Ω; Acheron can cut through Xipe's curses and Ena's dreams, and was even able to cut through the Preservation Path itself.Small Town Grotesque After unleashing her true power, her attacks can ignore the opponent's elemental resistance to Fire, Ice, Lightning, Air, Quantum & Imaginary Energy)
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Resistance to:
*Antimatter Manipulation (Can resist the effects from Reavers whose bodies are completely made out of antimatter) 
*Biological Manipulation, Corrosion Inducement, Space-Time Manipulation & Reality Warping (12-D, possibly Ω; Can withstand several effects caused by the Fragmentum)
*Void Manipulation & Causality Manipulation (12-D, possibly Ω; Emanators like her should be unaffected by imaginary space which erases all trace of existence. Acheron was able to resist the effects of being swallowed by the shadow of IX the Nihility)
*Aura (Overwhelming & Explosive), Madness Manipulation (Types 2 & 3), Empathic Manipulation, Sleep Manipulation, Soul Manipulation, Mind Manipulation & Information Manipulation (Type 2 - 12-D, possibly Ω; To become an Emanator of the Nihility's path, Acheron should have been able to resist being in the presence of IX, which can shatter the minds of their opponents and manipulate their emotions, causing sentient beings that have contact with IX to become insane and had their souls drained passively, often resulting in their incapacitation.Simulated Universe World 4 Event IX's presence can also put their opponents to sleepSimulated Universe: Swarm Disaster)
*Dream Manipulation (12-D, possibly Ω; Acheron was unaffected by Ena's dream)
*Law Manipulation (12-D, possibly Ω; The Path of Order can't affect the Nihility)
*Status Effect Inducement (12-D, possibly Ω; Which includes Burning, Freezing, Electric Shock, Sharp Winds, Quantum Entanglement & Imaginary Imprisonment)
Unconventional Resistance to:
*Soul Manipulation, Mind Manipulation, Memory Manipulation & Information Manipulation (Type 2; The soul contains the consciousnessA Teacher and a Friend and fundamental information.A Teacher and a Friend: Interlude Those that can look into her mind and memories will get traumatized)
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Attack Potency: Galaxy level (As an Emanator of Nihility and a Self-Annihilator,Cat Among PigeonsWhen the Sacred Ginmill ClosesA Walk Among the TombstonesAcheron Character Story: Part IV she should be at the same level of power as Jing Yuan and Pre-Ambrosial Arbor Absorption Phantylia. Was able to fight against illusion-like clones of Silver Wolf, Blade and Kafka in a 1v3 battle, even being capable of emerging as the winner of the combat. Matched SAM in a one-on-one battle for a prolonged period of time to a stalemateWhodunit10.53 ZettaFoe), far higher with Unsheathed Sword (After unsheathing her sword, Acheron undergoes a transformation which unleashes her full power as an Emanator of Nihility, making her vastly stronger than before. Casually defeated a weakened Aventurine of Stratagems with a single attack. Furthermore, Welt considers her power terrifying, and stated it can affect the entire Dreamscape)
Speed: Relativistic travel speed, FTL reaction and combat speed (Kept pace with SAM. Was able to watch and keep track of the entire fight between The Trailblazer, March 7th, Himeko and Welt against a weakened Aventurine of Stratagems)
Lifting Strength: Class 5 (Stronger than the likes of Blade and Yanqing)
Striking Strength: Galaxy level (Clashed evenly with SAM), far higher with Unsheathed Sword
Durability: Galaxy level (Was able to withstand and block multiple attacks from SAM), far higher with Unsheathed Sword (Vastly more durable than before. Can withstand the force of her own attacks)
Stamina: Superhuman (Went through several battles against the Yaoyorozu-no-Kami and its strongest subordinates for many years with minimal rest, even having a brutal and lasting fight against Hakuhatsu Ki, the user of the End's sword, coming out as the winner, and even after all of that, she was able to endure being swallowed by the shadow of IX, the Aeon of Nihility, and even so, she had strength enough to fire a very powerful slash towards IX, and later, she had energy enough to escape from the Aeon and come back alive)
Range: Extended Melee Range with Scabbard and Unsheathed Sword, Tens of Meters with Energy Projection, Up to Galactic & Interdimensional with Unsheathed Sword's Powers and Abilities (A single casual energy slash from her easily extended beyond the Clock Studios Theme Park and destroyed Aventurine of Stratagems' rain of large chips that were covering the said Park. Her true powers as an Emanator of Nihility were stated to be capable of affecting the entire Dreamscape, which is based on everything regarding the Asdana Galaxy, including its size. After unsheating her sword, Acheron gains the ability to send her opponents to the "Horizon of Existence". Was able to nullify Ena's dream from the entire Dreamscape despite being on the "Horizon of Existence"), Hyperversal, possibly Low Outerversal with Dimensional Travel
Standard Equipment:
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A sword named Naught. 
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: Increases the wearer's critical damage by 60%. When the wearer hits an enemy target, inflicts Mirage Fizzle on the enemy, lasting for 1 turn. Each time the wearer attacks, this effect can only trigger 1 time on each target. The wearer deals 40% increased damage to targets afflicted with Mirage Fizzle, and the damage dealt by the wearer's Ultimate additionally increases by 40%.
File:Along the Passing Shore.png|Along the Passing Shore
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Intelligence: Genius (Acheron saw through Black Swan's true intentions while dancing with her, and as retaliation, she manifested her memories upon her, inducing palpitating revelation and psycho trauma. She instantly noticed Black Swan's identity upon interacting her and asked about the Annihilation Gang. Was capable of fighting against illusional clones of Silver Wolf, Blade and Kafka at the same time, with the latter two being masters in the art of swords)
Weaknesses: Acheron is hesitant to draw her blade unless she deems it necessary. As a Self-Annihilator, Acheron will gradually lose her senses and memories.
Notable Attacks/Techniques:	Notable Attacks/Techniques:
 	
 
==Notable Matchups==
Victories:
Losses:
Inconclusive:
==References==
==Notes/Explanations==
Category:Honkai Star Rail
Category:Female Characters
Category:Characters
Category:Good Characters
Category:Emotionless Characters
Category:Tragic Characters
Category:Acausal Characters
Category:Adults
Category:Sword Users
Category:Extrasensory Perception Users
Category:Enhanced Senses Users
Category:Martial Artists
Category:Acrobats
Category:Danmaku Users
Category:Energy Projection Users
Category:Electricity Users
Category:Stealth Masters
Category:Madness Users
Category:Dimensional Travel Users
Category:Empowerment Users
Category:Information Users
Category:Energy Users
Category:Transformation Users
Category:Space Users
Category:Time Users
Category:Probability Users
Category:Fate Users
Category:Pocket Reality Users
Category:BFR Users
Category:Black Hole Users
Category:Void Users
Category:Causality Users
Category:Power Nullification Users
Category:Statistics Reduction Users
Category:Video Game Characters
Category:Playable Characters
Category:Statistics Amplification Users
Category:Durability Negation Users