Snape

Biodata

Feature	Value
Name	Severus Snape (斯内普)
Alias(es)	Half-Blood Prince 176
Species/Race	Human wizard; half-blood 462
Gender	Male
Affiliation	Hogwarts School of Witchcraft and Wizardry; Slytherin House; Dumbledore’s anti-Voldemort effort 17 99 240
Occupation/Role	Potions Professor; Head of Slytherin House 17 152
First Appearance	Chapter 17

Power Progression

Stage / Realm / Level	Chapter	Notes
Dark Arts body modification	398	Secretly alters his body through taboo Dark Arts to improve his spellcasting, magical resistance, perception, and physical capability; the process is explicitly dangerous and self-tormenting.
Thestral bloodline fusion	420	Survives a failed fusion crisis with Wayne’s intervention and successfully integrates a Thestral bloodline. His magical activity and dynamic vision increase, while his eyes turn from blue to black.

Background

Snape grew up in Spinner’s End with Eileen Prince, his witch mother, and Toby Snape, his volatile Muggle father. His childhood was marked by domestic abuse and deprivation; his neighbor Lily Evans was his principal source of warmth and companionship before they entered Hogwarts together. 123

He later became a Death Eater and delivered an overheard prophecy to Voldemort, an act that contributed to Lily’s death. The guilt from this mistake defines his adult life: he works with Dumbledore to oppose Voldemort, seeks revenge against the Dark Lord, and remains committed to protecting Lily’s son. 52 99

Snape’s grief also drives his private research. After gaining access to Phoenix Tears, he begins experimenting with resurrection, killing and reviving an unidentified captive from Knockturn Alley as a test subject. His goal is not merely theoretical—he hopes to restore Lily to life. 124

Appearance

Snape presents a consistently severe, intimidating image, reinforced by his dark clothing and habit of moving through Hogwarts with his robes billowing behind him.

• Long black robes, frequently compared to a bat’s wings. 17
• Greasy black hair and an aquiline nose. 23 215
• Cold, penetrating eyes; after his Thestral fusion, his blue eyes turn black. 420
• Often carries the smell and visual clutter of potion ingredients, owing to his workrooms and classroom stores. 37

Personality

Snape is exacting, sarcastic, and openly intimidating toward students. He treats potion-making as a discipline of precision, punishing carelessness with cutting remarks and severe point deductions. His criticism is often technically valid, even when delivered cruelly. 17 18

He is deeply vindictive and prone to personal grudges, particularly where Harry Potter, Sirius Black, and Remus Lupin are concerned. His resentment can override his judgment, as when he attempts to hand Sirius and Lupin to the Dementors despite Peter Pettigrew’s confession. 289 354

Beneath this hostility is intense determination. Snape is willing to endure humiliation, cooperate with people he dislikes, alter his own body through Dark Arts, and cross moral boundaries in pursuit of power, vengeance, or a chance to bring Lily back. 124 398 420

Abilities & Skills

Potions Mastery

Snape is an elite potioneer whose work is valuable even to Voldemort. He teaches advanced material beyond the ordinary curriculum and regards potion-making as a precise magical science. 17 29

• Invented the Potential Potion, which develops a wizard’s latent magical potential and can accelerate Magic Power growth. 65
• Developed a Revival Potion capable of restoring a recently dead subject, though it does not by itself solve the problem of restoring Lily. 124 324
• Brews Wolfsbane Potion for Remus Lupin and is capable of modifying its taste out of spite. 288 289
• Uses rare ingredients such as Phoenix Tears, Basilisk materials, Acromantula venom, and Thestral blood in his research. 50 232 419
• His experimental work is dangerous: some potions cause brain damage, and his bloodline research nearly kills him. 242 419

Dueling and Spellcraft

Snape is a highly capable combat wizard with rapid multi-casting, strong defensive magic, Transfiguration, and a willingness to use aggressive spells when unrestrained. 61 399

• Invented Sectumsempra, an invisible cutting curse that resists ordinary repair magic. 60 88
• Can cast several spells in rapid succession, including Silencing Charms, Shield Charms, conjured serpents, fire-based Transfiguration, and Disarming Charms. 61 354 399
• Defeated Barty Crouch Jr., while the latter was disguised as Alastor Moody, in only a few rounds once Wayne removed the room’s light. 399
• Overpowered the weakened Sirius Black and third-year Harry Potter simultaneously, though he avoided using his darkest spells against Harry. 354
• Lost a first-year duel to Wayne Lawrence after being caught by unfamiliar mental magic and close-quarters attacks. 61

Dark Arts Modification and Bloodline Fusion

Seeking to keep pace with Wayne and stronger enemies, Snape conducts taboo self-experimentation through Dark Arts modification. 398

• Alters his body to improve magical resistance, observation, spell power, and physical ability. 398
• Attempts a Thestral bloodline fusion, preparing stabilizing, restorative, and emergency revival potions beforehand. 419
• Gains increased magical activity and enhanced dynamic vision after the fusion succeeds. 420
• Remains dissatisfied with the Thestral fusion alone and begins considering stronger creature bloodlines, including dragons, phoenixes, Thunderbirds, and Horned Serpents. 420

Relationships

• Albus Dumbledore — Uneasy ally and collaborator against Voldemort. Snape obeys Dumbledore’s broader strategy but speaks to him with unusual bluntness and resents his decisions. 99 240 400
• Lily Evans Potter — Childhood friend and the central motivation behind Snape’s guilt, loyalty, and resurrection research. 123 124
• Harry Potter — Lily’s son; Snape repeatedly targets him in class yet is also tasked with protecting him. His attitude softens temporarily when Harry appears as a girl and reminds him of Lily. 35 52 175
• Wayne Lawrence — Rival, debtor, supplier, and occasional collaborator. Their relationship shifts from point deductions and attempted intimidation to transactions, duels, and reluctant recognition of each other’s skill. 23 61 62 420
• Voldemort — Former master whom Snape now wants dead. Snape fears Voldemort’s Dark Arts knowledge but remains determined to oppose him. 20 400
• Remus Lupin — Former school rival. Their old hostility resurfaces at Hogwarts through sabotage, public embarrassment, and disputes over Lupin’s werewolf condition. 274 288 289
• Sirius Black — Long-standing enemy whose connection to Lily’s death intensifies Snape’s hatred; their conflict repeatedly escalates into violence. 353 354 438
• Peter Pettigrew — Former acquaintance and object of Snape’s revenge after Pettigrew’s role in Lily’s death is exposed. Snape tortures him with the Whip of Kindness and uses him as a potion test subject. 357 359 360
• Regulus Black — Formerly regarded as a committed Death Eater, but later earns Snape’s respect after his Horcrux-related sacrifice is revealed. Snape agrees to help treat his transformed body. 373 374

Story Role / Major Arcs

First Year: Potions Professor and Wayne’s Rival

Snape establishes himself as Hogwarts’ harsh Potions professor, targeting Harry Potter and testing Wayne Lawrence with questions and assignments beyond the first-year syllabus. He becomes fixated on Wayne’s phoenix materials, particularly Phoenix Tears, and repeatedly deducts Hufflepuff points while attempting to secure them. 17 23 29

His conflict with Wayne culminates in a private duel. Wayne defeats him, but Snape recognizes that Wayne is no longer merely a talented student and instead treats him as a genuine magical threat. 60 61

Chamber of Secrets Investigation

During the Chamber of Secrets crisis, Snape assists Dumbledore’s investigation and discusses Voldemort’s history, Lucius Malfoy’s possible involvement, and the nature of the attacks. He pressures Wayne to help identify the culprit but is frustrated by Wayne’s indifference. 209 215 216

After Wayne defeats the Basilisk, Snape trades potions for Basilisk flesh, blood, and scales, including two magic-resistant cloaks made from the creature’s scales. 232

Sirius Black and Pettigrew Incident

Snape’s hatred of Sirius and Lupin resurfaces after Sirius enters Hogwarts. When he discovers them with Harry and Peter Pettigrew, he refuses to accept Sirius’s innocence and attempts to send Sirius, Lupin, and Peter to the Dementors. 353 354

Wayne forcibly stops Snape’s attack and warns him about the consequences of his actions. Once Pettigrew’s guilt is confirmed, Snape redirects his rage toward Pettigrew, personally torturing him and later retaining custody of him for further revenge. 355 357 359

Pursuit of Greater Power

Unable to accept his limits, Snape secretly modifies his body with Dark Arts and accepts Wayne’s suggestion of magical-creature bloodline fusion. His Thestral fusion initially sends him into a violent, near-fatal state, but Wayne stabilizes the process and allows the fusion to succeed. 398 402 419 420

Resurrection Stone Deal

Wayne reveals the Resurrection Stone to Snape and offers its use in exchange for Liquid Luck. Snape becomes lost in an illusion of Lily for an entire afternoon, forcing Wayne to remove the Stone; afterward, Snape does not request it again. 462 463

Notable Quotes

“You are here to learn the precise science and strict art of potion-making.” 17

“Only Dumbledore would see you as a child! In my eyes, you are a monster!” 61