Regulus

Biodata

Feature	Value
Name	Regulus Black (雷古勒斯)
Species/Race	Wizard
Gender	Male
Affiliation	Black family; Slytherin House
Occupation/Role	Black family heir; student; leader and mentor to Avery, Alex, Hermes, and his broader Slytherin circle
Status	Alive
First Appearance	Chapter 2

Power Progression

Stage / Realm / Level	Chapter	Notes
Four-Star System	31	Stabilized the four-star dynamic model of his Star Orbit Meditation after nearly two hours of concentration; chose consolidation over attempting a fifth star.
Bellatrix linked, half-lit	87	Connected Bellatrix to the Four-Star System after achieving resonance with a rational desire to protect his path, family assets, and inner clarity.
Bellatrix as a defensive anchor	102	Drew on Bellatrix—the star of protection—to reinforce a crystal-like Shield Charm while protecting Avery and Alex.
Bellatrix fully shines	191	The fifth star fully illuminated after Regulus rejected alternative paths and reaffirmed his independent will, Space Magic, Patronus, and Star Orbit Meditation.
Betelgeuse externalized combat state	442	Used Betelgeuse's imagery to alter his Magic Power from calm and precise into a scorching, aggressive, outwardly oppressive form suited to his covert identity.
Dual will recognized	446	Dumbledore identified Regulus's Guardian Will and his explosive, outward-driving will as complementary manifestations of the same core rather than opposing forces.

Background / History

Regulus is a soul from another world inhabiting the body of Regulus Black. Aware that the original Regulus was fated to die young, he resolved to avoid that fate and pursue the greater possibilities represented by the starry sky, the universe, and unexplored magical realms. 2

From an early age, he understood that Voldemort's rise would force the Black family to choose a side. He concluded that he needed the Black family's resources, pure-blood status, and access to the Death Eaters' inner circle to obtain knowledge and power, even as he recognized that Sirius would likely take an opposing path. 4 5

At six years old, Regulus began researching the relationship between magic, the body, and magical fatigue in the attic of 12 Grimmauld Place. His discoveries led Orion Black to explain Arcturus Black's dangerous experiments in the same field and warn him against pursuing bodily enhancement recklessly. The growing threat of Voldemort and an impending conflict strengthened Regulus's resolve to pursue power. 6

Orion trained him to limit what he displayed at Hogwarts, where Regulus deliberately used a wand despite being capable of comparable control without one. He nevertheless established himself quickly in Slytherin by humiliating older students who challenged his family or authority. 10 14

During his first year, Regulus developed the Star Orbit Meditation system and built a political circle around himself. He formed working relationships with Avery Cuthbert, Alex Rosier, and Hermes Mulciber, while treating their different talents as resources to be coordinated rather than dismissed. 31 36 49

Regulus inherited Black family magical knowledge through the Family Secret Chamber and broadened his practice into Apparition, Spatial Magic, inherited spells, Dark Arts, mental magic, and advanced Transfiguration. His combat ability rapidly approached that of an elite Auror, though Orion repeatedly stressed the importance of experience and restraint. 55 60 149

His circle later expanded to include the half-blood students Lena Costa and Samuel Vance, whom he publicly sheltered in Slytherin, as well as Severus Snape, who chose to cooperate with Black's faction while retaining his own independent position. 257 357 379

His relationship with Orion evolved from parent and child into one of trusted allies. Orion increasingly involved him in family affairs, supported his independent plans, and accepted that Regulus would define his own path amid the competing influence of Dumbledore, Voldemort, and Grindelwald. 197 301

Following the Lestrange Banquet conflict and his confrontation with Voldemort, Regulus turned increasingly toward research into the relationship between soul, magic, light, darkness, and the boundaries of humanity. His investigation of Fenrir Greyback's divided human and beast mind led him to reconsider whether opposing aspects of the self should be isolated or allowed to reinforce one another. 325 395

Appearance

Regulus commonly presents himself with the controlled, formal bearing expected of the Black heir. At formal functions, he wears fitted black dress robes similar to Orion's and a replica Black Family Ring on his left hand. 52 303

• Has deep, slightly wavy black hair, gray eyes, a slender build, and refined Black family features. 11 441
• Straight posture and settled bearing; Orion notes that he appears older and more self-possessed than an ordinary eleven-year-old. 52
• His long-term magical tempering gives him an upright, well-proportioned figure and increasingly mature facial features. 235 356
• Wears a silver replica of the Black Family Ring, engraved with the family crest. 10
• At the Lestrange banquet, his robes had narrow shoulders, a fitted waist, and silver-threaded hidden cuff patterns. 303

Disguised Identity

For covert operations, Regulus can remake both his appearance and magical signature.

• Used a water mirror to transform his black hair into long silver-white hair, his gray eyes into amber slit pupils, and his slight body into that of a broad-shouldered, muscular young wizard. 441
• Alters the texture of his Magic Power through Betelgeuse, replacing his usual steady and controlled presence with a hot, violent, aggressively oppressive aura. 442 446
• The alternate identity is sufficiently convincing that Voldemort regards the silver-haired wizard as a separate Dumbledore-aligned combatant rather than associating him with Regulus Black. 469

Personality

Regulus is methodical, self-controlled, and intensely curious. He approaches magic as a system to be observed, tested, and improved, favoring patient consolidation over reckless advancement. 6 31 86

He is politically perceptive and treats influence, reputation, and alliances as practical tools. He understands the value of demonstrating strength, but also consciously moderates his public image when necessary. 49 52

In combat, Regulus is calm, analytical, and often ruthless. He prioritizes efficiency and risk assessment over conventional morality, though his developing Guardian Will shows that he is capable of making choices based on protection rather than calculation alone. 71 86 102

His concept of power extends beyond magical force: he values the ability to choose, understand, and resist being defined by others. 270

Regulus recognizes both light and darkness within himself, including his desires for control, power, and domination. Rather than denying either aspect, he seeks to understand their interaction and make both serve his chosen direction. 326 395

Though he uses the Black family's status and does not reject its resources, he does not wholly embrace blood-purity extremism. His public protection of half-blood students and refusal to become a banner for Slytherin extremists make his exact political position deliberately difficult to define. 34 257 377

Abilities & Skills

Star Orbit Meditation

A cultivation system based on the orbital imagery of stars, used to organize Regulus's spirit, Magic Power, and mental defenses.

• Circulates Magic Power through star tracks, gradually tempering his body, strengthening his spirit, and increasing his reserves. 86
• Anchors his core consciousness against illusions, temptation, and mental interference. 156 174
• Bellatrix embodies protection, boundaries, and Guardian Will; it brightens in response to Regulus's resolve to defend others and his chosen path. 86 175 191
• Requires genuine inner resonance rather than merely constructing a correct mental model. 86
• Can invoke Betelgeuse's eruptive imagery without entering deep meditation, although doing so substantially drains his mental strength. 87
• Uses Betelgeuse to manifest an outward-driving magical will characterized by heat, aggression, and the force to break through obstacles. 442 446

Transfiguration

Regulus possesses advanced Transfiguration skill, applying it both creatively and lethally.

• Produced a perfect match-to-needle transformation on his first attempt. 16
• Transformed graphite into diamond and created a winged rabbit capable of movement. 40 77
• Uses Transfiguration offensively, including suffocation, crystal formation inside an opponent's lungs, and conjuring a python during a duel. 30 70
• Has reached the threshold of Spatial Transfiguration. 267
• Uses advanced bodily and appearance-altering Transfiguration to construct alternate identities for covert work. 441

Space Magic

Regulus studies Apparition and spatial phenomena as the foundation of a broader Space Magic system.

• Performed solo Apparition under Orion's supervision. 60
• Developed the Spatial Warp Charm, creating a passage through which an object could be moved. 152
• Uses Spatial Warp to enhance attacks, including a Stone Spike. 173
• Can sense subtle spatial disturbances, such as a House-elf's arrival. 77
• Can detect the opening point of an opponent's Apparition channel and anticipate their landing position. 318
• Outside Hogwarts, successfully folds space, sets anchors, and opens stable spatial channels; he envisions an intercity transportation network based on these doors. 373
• His evolved Starry Sky Kite Patronus can traverse space and bypass the Anti-Apparition Charm at 12 Grimmauld Place. 196

Defensive Magic

Regulus is noted for precision, timing, and layered defense against sustained spellfire.

• Instantly forms miniature Shield Charms around himself to intercept attacks from multiple directions. 53
• Can weave Star Orbit Meditation and Bellatrix's protective symbolism into a crystal-like barrier. 102
• Possesses a Constant Shield Charm that triggers automatically under magical pressure. 340
• Deflected shadow-based attacks with a silver-white light barrier. 70
• His Guardian Will can act upon magic as a firm, boundary-preserving force rather than only a symbolic mental construct. 446

Dueling and Movement

Regulus combines conventional spells, Dark Arts, movement charms, and battlefield analysis into fluid combat sequences.

• Defeated fifth-year Travers while still a first-year, first disarming him non-verbally and later crushing him in a public duel. 14 30
• Defeated Hermes Mulciber to become Head of New Students. 28
• Links Sidestep, Sprint, Swift, and Levitation Charms while continuing spell output; Orion compares his direct combat ability to that of an elite Auror. 149
• Uses basic Slowing Charms tactically to deny opponents the opportunity to cast. 277
• Combines Transfiguration, high-temperature Fire-Making magic, and rapid movement to counter Bellatrix's battlefield-controlling Black Mist. 316
• Developed a close-range, high-pressure fighting style for his silver-haired identity, using aggressive Magic Power output, speed, and environmental manipulation against experienced Dark Wizards. 442 449 450

Dark Arts

Regulus understands and employs dangerous magic with unusually strong control.

• Withstood the Imperius Curse effortlessly. 55
• Cast the Cruciatus Curse in combat and attempted the Killing Curse, though Orion intervened. 70
• Uses Fiendfyre, which requires adult-level Magic Power reserves, emotional control, Dark Arts knowledge, and the will to restrain its destructive autonomy. 369
• Can shape Fiendfyre into a Flame Whip capable of melting stone and threatening highly mobile opponents. 318 368
• Developed and uses the Severing/Disintegration Charm, including chain conduction capable of shattering multiple targets at once. 173 174 355
• Tests opponents' instinctive reactions to Fiendfyre, the Severing Charm, and the Disintegration Charm. 394

Dark Enlightenment

Dark Enlightenment is a concentrated mass of negative energy created by Voldemort and delivered to Regulus in a Bone Box as both a gift and a test.

• Resisted its temptations through Star Orbit Meditation, layered Legilimency defenses, and a simulated personality intended to mislead the magic's influence. 156
• Treats it as a source of knowledge and power to be controlled rather than a path to follow. 158
• Can draw on its gray power to increase the force of his Magic Power in battle, though he remains wary of its influence and Voldemort's intentions. 319 325

Mental Magic

Regulus researches soul magic, Legilimency, and methods of resisting or manipulating consciousness.

• Designed layered mental defenses using Star Orbit Meditation, Legilimency mazes, barriers, and a simulated personality to misdirect intrusions. 156 174
• Resisted Abyssal Whisper's consciousness-altering attack through Star Orbit Meditation. 175
• Developed an idea for mental manipulation that would replace a target's will rather than merely override it. 83
• Used Legilimency on Fenrir Greyback to study the relationship between his human and beast selves. 395
• Learned from Greyback's fragmented mentality that light and darkness become unstable when one side is sealed away completely; both must remain active enough to interact and borrow strength. 395

Magical-Creature Modification

Regulus applies Transfiguration theory and magical-trait transplantation to improve magical creatures, principally Baruk.

• Plans to transplant traits from Occamies, Demiguises, Bowtruckles, Salamanders, and other creatures into Baruk. 287
• Has altered Baruk's body with salamander-like scale texture, deep-red bristles, and increased fire resistance. 348 415
• Granted Baruk luminous markings around its eyes and an ability to communicate with trees. 415
• Baruk has further adapted its legs into a shock-absorbing system that makes riding smoother and assists its movement while hunting. 441

Patronus

Regulus's Patronus is the Starry Sky Kite, a creature described in ancient records as comparable to, or rarer than, a phoenix. 66

• Appears as a silver-white kite that can flicker across short distances. 181
• Reflects his growing Magic Power and sense of freedom. 181
• Later develops spatial-travel capability. 196

Equipment / Weapons / Items

• Blackthorn wand — a twelve-and-a-quarter-inch wand with a dragon heartstring core; after Regulus's confrontation with Voldemort, it began to show an affinity for stronger and darker spells. 326
• Wand — used in public to avoid appearing abnormal, despite his ability to exercise exceptional control. 14
• Replica Black Family Ring — senses Black family members in mortal danger by heating up; lacks the Patriarch's authority. 10
• Water mirror — used to alter Regulus's physical appearance for covert missions. 441
• Fawkes's tail feather — retained as insurance against the worst-case outcome of his plan involving Dark Enlightenment. 301
• Baruk — an Acromantula companion Regulus intends to strengthen through magical trait transplantation and later Magic Circuit modification. 287

Relationships

• Orion Black — father, mentor, and eventually political ally; tests Regulus through duels, supports his magical development, and trusts his judgment. 53 197 301
• Walburga Black — mother; proud of Regulus's achievements and deeply invested in Black family glory, but their priorities sometimes conflict. 52 332
• Sirius Black — older brother; initially tense and resentful relationship gradually develops into mutual respect, mentorship, and cooperation. 267 270 302
• Avery Cuthbert — ally and follower; seeks Regulus's guidance and becomes convinced by both his strength and willingness to protect others. 36 102
• Alex Rosier — member of Regulus's circle; follows his instructions and recognizes him as the most dangerous presence in their dormitory. 40 251
• Hermes Mulciber — roommate, sparring partner, and designated combat specialist within Regulus's group; Regulus trains his mental discipline and Magic Power control. 277 369
• Freya — magical associate and battle partner; accompanies Regulus against Abyssal Whisper and later reveals that she works with Grindelwald. 175 196
• Bellatrix Lestrange — cousin and adversary; their conflict culminates in a high-level duel at the Black family Christmas Banquet. 316 318
• Baruk — Acromantula companion whom Regulus treats as a companion rather than a mere pet. Baruk is loyal to him and serves as both mount and subject of his magical-creature modification research. 287 334 441
• Albus Dumbledore — headmaster, wary observer, and covert intelligence contact. Dumbledore recognizes the light in Regulus's Patronus and later receives his information on Voldemort and Greyback while Regulus is disguised. 113 446
• Severus Snape — intelligence associate within Slytherin; Snape provides information on Lestrange activities and ultimately aligns himself with Regulus's side without accepting a wholly subordinate role. 85 257 379
• Lena Costa and Samuel Vance — half-blood students protected by Regulus and incorporated into his wider Slytherin circle; Alex oversees much of their training. 257 357 424
• Lucius Malfoy — political associate whose family position Regulus studies carefully; Regulus later accompanies him in negotiations with Fenrir Greyback's werewolf pack. 57 388 391
• Fenrir Greyback — werewolf leader and unwilling research subject. Regulus uses Legilimency to examine Greyback's human and beast aspects, leaving him mentally cowed. 395
• Eleanor — friend toward whom Regulus shows growing personal warmth; he privately anticipates that she may one day take the Black name. 378

Story Role / Major Arcs

Rise in Slytherin

Regulus enters Slytherin with a damaged family reputation due to Sirius, then overturns others' assumptions by defeating upperclassmen and establishing authority among new students. 14 28 30

Black Family Inheritance

After demonstrating restrained but exceptional power to Orion, Regulus gains access to inherited Black knowledge and begins integrating the family's magic into his own system. 53 55

Abyssal Whisper Mission

Regulus fights Masked Men in Germany alongside Freya, kills an opponent with the Severing Charm, withstands a mental corrosion attack, and gains new insight into Bellatrix's protective resonance. 173 175

Bellatrix's Illumination

After confronting alternative magical paths within his Spiritual World, Regulus chooses to preserve his own will and existing foundations, causing Bellatrix to shine fully. 191

Lestrange Banquet Conflict

Regulus prepares to use Dark Enlightenment as part of a political trap, enlists Sirius against Rabastan, and duels Bellatrix at the Black family Christmas Banquet. The confrontation elevates his reputation across the pure-blood community. 301 302 318 330

Spatial Expansion and Magical Research

Regulus continues developing Light Magic, Spatial Networks, controlled flight, soul theory, magical-creature modification, and chain-conduction Disintegration magic. 230 287 355 373

Consolidation of the Slytherin Circle

After defeating Bellatrix, Regulus returns to Hogwarts to widespread recognition from Slytherin's pure-blood students. He formalizes the roles of Avery, Alex, Hermes, Lena, and Samuel, delegates social and training responsibilities, and develops his group into a more coordinated faction. 326 357 369 424

Werewolf Investigation

Regulus assists Lucius's contact with Fenrir Greyback in order to study werewolves and investigate Voldemort's plans. His Legilimency examination of Greyback's mind provides new insight into the coexistence of human and beast, light and darkness. 388 395

Covert Intelligence Mission

Using a transformed appearance and altered magical signature, Regulus enters a remote northern settlement under a new identity. He meets Dumbledore in secret, providing intelligence on Voldemort's deteriorating condition, the planned werewolf army under Greyback, and Death Eater infiltration of the Ministry. 441 442 444 446

Trivia

• Regulus's Star Orbit Meditation is based on the stable physical law of stellar movement, which he uses as a framework for his soul and Magic Power. 287
• He regards Baruk's growth as linked to his own, telling the Acromantula: “I'll become stronger first, then you will.” 334
• Despite his public reputation as a cold pure-blood heir, Freya concludes after traveling with him that the person before her differs from the image described by Voldemort and others. 179
• Regulus deliberately made his covert identity attractive rather than disguising himself as someone unattractive, considering that an unnecessary waste of his Black family features. 441