If you’ve been playing Hogwarts Legacy and wondered when you can finally unlock Avada Kedavra, one of the most iconic spells in the Harry Potter universe, you’re not alone. This instant-kill curse has captured the attention of players who want to wield the darkest magic available in the game. The path to learning Avada Kedavra isn’t straightforward, though. It requires specific choices, a particular questline, and commitment to a character arc that pushes your character toward the dark side. This guide breaks down exactly when you can learn Avada Kedavra in Hogwarts Legacy, what you need to do to get there, and whether the consequences are worth it.
Key Takeaways
- Learn Avada Kedavra in Hogwarts Legacy during Year 5’s ‘In the Shadow of the Relic’ questline by maintaining consistent dark magic choices and building trust with Sebastian Sallow from the game’s beginning.
- Building a relationship with Sebastian requires accepting his invitations to forbidden spell practice, supporting him during moral dilemmas, and expressing genuine interest in dark magic throughout Years 3-5.
- Avada Kedavra functions as an instant-kill curse with a 25-30 second cooldown and serves as a powerful finisher spell in a dark magic-focused loadout paired with Crucio and Imperio.
- Learning Avada Kedavra locks your story ending into a dark branch, triggers house point losses, and permanently shifts how NPCs and companion characters perceive you throughout the remainder of your playthrough.
- You cannot obtain Avada Kedavra without demonstrating sustained commitment to dark magic; there is no alternative questline, hidden teacher, or way to unlock it as a casual side feature.
- Slytherin students face fewer house point penalties for learning dark spells since their house culture normalizes dark magic exploration, while Hufflepuff and Ravenclaw students experience steeper reputation costs.
Understanding Avada Kedavra in Hogwarts Legacy
What is Avada Kedavra
Avada Kedavra is one of the three Unforgivable Curses in the Harry Potter universe, and Hogwarts Legacy faithfully recreates it as a devastating spell in combat. In the game, it’s an instant-kill curse that eliminates most enemies on contact. It has a signature green hue that matches the iconic spell from the films, making it unmistakable when cast. The spell hits differently than standard damage-dealing abilities, it doesn’t chip away at health bars. Instead, it either eliminates an enemy completely or fails, depending on certain factors.
The mechanics are straightforward but powerful. When you cast Avada Kedavra, there’s no dodge animation or last-second saves for most foes. Weaker enemies simply vanish. Bosses and tougher enemies have more resistance, but even they take massive damage or outright die if conditions align. This makes the spell feel genuinely dangerous and rare, which matches its lore weight perfectly.
Why Players Want to Learn This Spell
Avada Kedavra has become a status symbol in Hogwarts Legacy for several reasons. First, it’s narrative weight, players want to roleplay as a morally gray (or outright dark) wizard, and this curse is the ultimate expression of that path. Second, there’s the combat appeal. One-shotting enemies feels incredible, and speedrunners specifically farm this spell because it trivializes certain encounters. Third, it’s exclusive. Not every player will pursue the dark arts storyline, which makes learning it feel like unlocking a secret power fantasy.
Beyond raw power, Avada Kedavra represents a commitment to a specific playstyle. If you’re building a dark magic loadout, this spell becomes the centerpiece, the ultimate finisher that rewards you for following Sebastian Sallow’s arc to its darkest conclusion. For completionists, it’s another spell to cross off the list. For narrative enthusiasts, it’s the culmination of choices that shape your character’s moral standing.
The Timeline: When You Can Learn Avada Kedavra
Sebastian Sallow’s Questline Requirements
Sebastian Sallow is the key to unlocking Avada Kedavra. His storyline runs parallel to the main campaign, and specific choices determine whether he’ll teach you the curse. You don’t need to be at a particular level to start his questline, you can encounter him early in the game, but the spell itself comes much later. The progression hinges entirely on how you treat Sebastian during crucial moments.
Throughout Year 5 and Year 6, Sebastian tests your allegiance multiple times. Each conversation and quest choice contributes to whether he considers you a true dark magic ally. If you consistently choose dialogue options that express interest in dark magic, accept his invitations to practice forbidden spells, and side with him during critical story beats, he’ll gradually trust you more. Conversely, turning him down repeatedly or siding against him locks you out entirely.
The questline accelerates significantly in Year 5, where the stakes become personal and Sebastian’s path darkens considerably. This is where your choices truly matter. If you’ve maintained good rapport and shown consistent dark magic interest, you’ll get access to his inner circle of students practicing forbidden magic. Without this foundation, Sebastian won’t teach you the curse, no matter how much you ask later.
The Specific Point in the Campaign
Avada Kedavra becomes available specifically during the “In the Shadow of the Relic” questline in Year 5. This is toward the end of Year 5, not Year 6. After completing certain dark magic demonstrations and proving yourself trustworthy to Sebastian, you’ll encounter a situation where he offers to teach you the curse as a final demonstration of your commitment.
The exact moment is during a underground meeting where Sebastian and his dark magic followers are practicing Unforgivable Curses. You’ll be given the opportunity to learn from him directly. This isn’t a one-time offer that disappears, once you’ve earned it, you can revisit Sebastian and select Avada Kedavra as one of your learnable spells. But, the quest chain leading to this moment is unmissable. If you reject Sebastian’s paths before reaching this point, you won’t get a second chance to learn it in subsequent playthroughs without reloading a save.
Sebastian Sallow: Your Path to the Dark Arts
Building Your Relationship with Sebastian
Sebastian Sallow starts as a somewhat antagonistic student with a genuine interest in dark magic. Unlike other characters, he’s not immediately hostile or dismissive, he’s curious and conflicted about his own path. Building a relationship with him requires understanding his motivations and showing genuine interest in the same magical traditions he studies.
You’ll encounter Sebastian early in the game, and your first interactions set the tone. If you’re dismissive or judgmental about his interests, he’ll notice. Conversely, if you show curiosity about dark magic and express that you’re not confined by “light magic only” dogma, he’ll warm up to you. After several encounters, Sebastian will invite you to secret locations where students gather to practice forbidden spells.
These invitations are pivotal. Each time you accept and participate, your relationship deepens. When you decline, there’s a noticeable shift in his demeanor, he becomes colder and less likely to trust you with advanced magic knowledge. The relationship isn’t binary, though. You can be neutral or cautiously interested without committing fully until later. The game tracks your choices across these encounters, building a history that determines whether Sebastian will eventually teach you the curse.
Personally investing time in Sebastian’s side quests and relationship activities also matters. Spending time with him during classes, supporting his decisions during group activities, and defending him when others criticize him all contribute. By the time you reach Year 5, you should have a clear relationship status with him, trusted ally, suspicious acquaintance, or outright rival.
Dark Choices and Dialogue Decisions
When Sebastian offers you opportunities to learn dark magic, the dialogue options matter. Some conversations include explicit choices like “Yes, teach me dark magic” versus “I’m not interested in forbidden magic.” These are obvious checkpoints. More subtle choices involve how you frame your interest in dark magic, whether you’re curious and open-minded or judgmental and dismissive.
Critical dialogue moments happen during:
- First encounters with Sebastian: Choose dialogue that expresses curiosity about dark magic rather than condemnation
- Invitations to secret meetings: Accept at least some of these invitations to attend forbidden spell practice sessions
- Moral dilemmas involving dark magic use: When given choices about whether dark magic is acceptable, choosing to consider it or defend its study keeps Sebastian’s trust
- Confrontations with other students or faculty: If Sebastian is criticized, defending him (or at least not attacking him) matters
- Year 5 escalation moments: When Sebastian faces personal crises, choosing to support him rather than report him to authorities is critical
One particularly important moment comes when you’re asked about joining Sebastian’s cause. This is where you need to genuinely commit to the dark arts path if you want Avada Kedavra. Fence-sitting here will lock you out. Sebastian needs to believe you’re choosing this path alongside him, not just experimenting.
There’s also the matter of how you respond when learning individual dark spells. If Sebastian teaches you Crucio or Imperio earlier in the game, taking those lessons willingly and showing proficiency signals that you’re serious about dark magic mastery. Hesitating or refusing earlier dark spells sends the opposite message.
In-Game Consequences of Learning Avada Kedavra
House Points and Reputation Impact
Learning Avada Kedavra has concrete in-game penalties, so it’s not a free power boost. Hogwarts Legacy tracks your choices, and being caught practicing dark magic, or discovered by faculty, costs you house points. If you’re in Hufflepuff or Ravenclaw, you’ll see immediate drops. Slytherins face smaller penalties because dark magic study is more normalized in their house culture, but consequences still exist.
The reputation system doesn’t work through a single “evil meter,” but rather through how characters and NPCs perceive you. Teachers will become suspicious. Some students will avoid you. The house ghosts may comment on your darker pursuits. Importantly, your companion characters will notice. If you’re close with characters like Poppy Sweeting or Natsai Onai, they’ll express concern or disappointment about your dark magic trajectory. Their dialogue shifts subtly, and some optional interactions become unavailable.
The reputation hit is manageable if you’re deliberately building a dark wizard playthrough. But if you’re trying to balance being a good student while secretly learning dark magic, you’ll need to be careful. Casting spells in front of witnesses or being caught during practice sessions triggers house point losses immediately.
One nuance: Slytherins have a slight advantage here. Sebastian’s inner circle operates somewhat openly in the Slytherin common room, and Slytherin house leadership is more tolerant of dark magic exploration. This doesn’t mean there are no consequences, but they’re less severe than for students in other houses.
Story Branching and Ending Variations
Your choice to pursue Avada Kedavra isn’t just cosmetic, it shapes the ending of Hogwarts Legacy. The game has multiple endings influenced by your moral choices throughout the campaign. Learning Avada Kedavra is a clear marker that you’ve committed to the dark arts path, which pushes toward a specific ending sequence.
If you’ve learned Avada Kedavra and made consistently dark choices with Sebastian, you’ll trigger the “dark ending.” This isn’t necessarily a “bad” ending narratively, it’s the conclusion where your character has fully embraced dark magic and Sebastian acknowledges your shared path. Conversely, if you’ve consistently rejected dark magic opportunities, you get an ending where you remain on the “light” side and Sebastian may face different consequences.
There’s also a middle ground. If you’ve been inconsistent, learning some dark spells but rejecting others, supporting Sebastian sometimes but opposing him other times, you might get a “neutral” ending that reflects your moral ambiguity. The game doesn’t explicitly label these outcomes, but players and the community have identified the distinct story branches.
Beyond the main ending, several side quest resolutions change based on your dark magic commitment. Certain character arcs only resolve if you’ve proven yourself to Sebastian’s faction. Some interactions with other students are locked or altered. Even minor dialogue throughout Year 6 shifts depending on whether you’re known as someone who practices dark magic. This means a dark-focused playthrough feels genuinely different from a light-focused one.
Step-by-Step Guide to Obtaining Avada Kedavra
Prerequisites and Character Level Recommendations
Before you can even attempt the Sebastian questline leading to Avada Kedavra, you need to be in Year 5. The game won’t progress to Year 5 until you’ve completed certain main story objectives, so you can’t rush this. There’s no specific character level requirement, but being around level 25-35 before entering Year 5 gives you enough power to handle the encounters associated with Sebastian’s quests comfortably.
You’ll also need to have access to the Dark Arts spellbook. This isn’t a separate unlock, dark magic spells appear in your standard spellbook alongside light magic options. But, you need to have learned at least one dark spell (like Crucio or Imperio) before Sebastian will teach you advanced dark magic. If you start Year 5 without any dark spells in your arsenal, Sebastian will be more hesitant to trust you, though you can still catch up.
Gear-wise, there’s no specific equipment requirement, but investing in spell power and intelligence-boosting gear helps. Avada Kedavra deals instant damage, not over-time damage, so it doesn’t scale with “Curse damage” bonuses the same way Crucio does. Still, having decent spell power ensures you hit harder in general and that the spell’s instant-kill effect triggers on weaker enemies more reliably.
One more prerequisite: you need to have consistently pursued dark magic options in earlier years if possible. If you start Year 5 and immediately ask Sebastian to teach you dark spells, he’ll be skeptical. You need some history of interest to justify the request.
The Quest Sequence and Key Moments
Step 1: Maintain Dark Magic Interest Throughout Years 3-4
When you encounter Sebastian in early game interactions, don’t immediately dismiss him. Accept at least one invitation to practice forbidden magic before Year 5 begins. This establishes that you’re open to dark magic and sets the foundation for Year 5.
Step 2: Seek Out Sebastian in Year 5
Early in Year 5, visit Sebastian in the Undercroft (the hidden common room beneath the Slytherin dormitory where dark magic practitioners meet). This location becomes accessible once you’ve shown sufficient interest in dark magic. If the Undercroft isn’t available, you haven’t built enough trust yet, go back and complete more dark magic activities.
Step 3: Practice Dark Spells with Sebastian
Sebastian will offer to teach you Crucio if you haven’t learned it already, and Imperio if you’re further along. Master these spells and show enthusiasm when practicing them. The game doesn’t have “spell proficiency” in a traditional sense, but casting spells and using them in combat demonstrates commitment.
Step 4: Complete the “In the Shadow of the Relic” Quest
This is the critical questline. Sebastian invites you to participate in a gathering of dark magic students. During this quest, you’ll have opportunities to prove yourself by casting dark spells and supporting Sebastian’s cause. Stay loyal and choose dialogue options that express commitment to dark magic mastery.
Step 5: The Avada Kedavra Teaching Moment
After proving yourself in the underground gathering, Sebastian offers to teach you Avada Kedavra directly. This is presented as the final step in your dark magic education. Accept the offer, and the spell is added to your spellbook. You’ll also get a brief tutorial on its mechanics.
Step 6: Experiment with the Spell
Once learned, Avada Kedavra appears in your spell wheel. It has a lengthy cooldown (roughly 25-30 seconds, depending on your build), so it’s not an unlimited one-shot tool. Use it in combat to get comfortable with its range and targeting. Note that the spell requires a clear line of sight and a moment to cast, it’s not instant.
One important note: if you’ve been inconsistent with dark magic choices or if you’ve sided against Sebastian in Year 5 conflicts, this questline won’t offer Avada Kedavra. You’ll need to restart or load a prior save. There’s no recovery option once you’ve rejected dark magic definitively.
Alternative Dark Spells Worth Learning
Crucio and Other Unforgivable Curses
Crucio is the curse of pain, an Unforgivable Curse that deals significant damage over time. Unlike Avada Kedavra’s instant elimination, Crucio burns enemies with agonizing pain, reducing their health gradually while they’re affected. The spell pairs well with Avada Kedavra because it softens targets, making them easier to one-shot.
Crucio’s advantage is its flexibility. It has a shorter cooldown than Avada Kedavra (roughly 12-15 seconds), meaning you can cast it more frequently during fights. It also scales well with curse damage modifiers, making it a solid choice if you’re building curse-focused gear. In extended encounters against tough enemies, Crucio’s consistent damage output can outlast Avada Kedavra’s single high-impact use.
Imperio is the Unforgivable Curse that forces control of another creature. When cast, it compels an enemy to fight allies or stand immobilized. The tactical value is massive. Forcing a dangerous enemy to stand still while you attack others is incredible crowd control. Some bosses are resistant to Impero, but against regular enemies, it’s one of the most powerful spells in the game.
Beyond the three core Unforgivables, other dark spells round out an effective curse loadout. Diffindo is a sharp cutting curse that deals solid damage and is reliable. Tarantallegra forces enemies to dance uncontrollably, leaving them vulnerable. Langlock seals an enemy’s mouth, preventing them from speaking (mostly useful narratively, but still darkly thematic).
Building Your Dark Magic Arsenal
If you’re committed to learning Avada Kedavra, you should build a complete dark magic toolkit that maximizes effectiveness. The spell doesn’t exist in a vacuum, it’s the finisher in a dark-focused loadout.
A balanced dark magic build looks like:
- Avada Kedavra (instant kill, long cooldown), your primary heavy hitter
- Crucio (damage over time, medium cooldown), consistent damage and setup
- Imperio (crowd control, medium cooldown), tactical control and positioning
- Stupefy or Petrificus Totalus (crowd control, short cooldown), utility and defensive options
- One mobility spell like Apparition or Descendo, survivability and repositioning
Gear should prioritize spell power, curse damage, and cooldown reduction. Dark robes, cursed accessories, and dark-aligned gear pieces all exist in Hogwarts Legacy’s loot. Seek out items with descriptions mentioning curses or dark magic affinity.
The playstyle becomes: weaken enemies with Crucio, control with Imperio or Stupefy, reposition as needed, and finish dangerous targets with Avada Kedavra. Against bosses, the strategy shifts toward using Avada Kedavra more sparingly and leaning on sustained damage from Crucio and crowd control.
One advantage of building this way: if Hogwarts Legacy Stealth Mechanics appeal to you, dark magic synergizes with stealth. Casting spells while sneaking breaks stealth but deals increased damage. Opening with Avada Kedavra from stealth against a single target eliminates them instantly, making it the ultimate stealth finisher.
Practically speaking, you won’t always have all these spells slotted in your quick-cast wheel. The wheel has limited slots, so you’ll rotate spells based on the encounter. For open-world exploration, keep Avada Kedavra and Crucio ready. For dungeons with tight quarters, swap in more crowd control. For boss fights you’ve scouted beforehand, optimize your loadout specifically for that encounter’s mechanics.
Common Questions About Avada Kedavra
Can You Learn It Without Following Dark Arts Choices
No, you cannot learn Avada Kedavra without demonstrating consistent interest in dark magic throughout the game. The spell is exclusively available through Sebastian Sallow’s questline, and Sebastian only teaches it to characters he trusts as genuine dark magic practitioners.
If you want to use a dark arts loadout but haven’t committed to the dark path early on, you’re locked out. There’s no alternative method to learn Avada Kedavra, no hidden questline, no secret teacher, no spell book you find lying around. It’s entirely dependent on Sebastian’s trust, which requires ongoing dark magic participation.
Some players hope they can just do a dark arts speedrun in Year 5, learning all dark spells immediately and picking up Avada Kedavra quickly. Mechanically, you can learn some dark spells fast, but Avada Kedavra specifically requires a history of choices. If you show up in Year 5 claiming to suddenly be interested in dark magic when you’ve been a goodie-two-shoes for four years, Sebastian won’t believe you. Your character sheet (figuratively) has a reputation, and that reputation matters.
The game’s design intentionally gates this spell behind commitment. It’s not meant to be a power pickup everyone grabs, it’s a narrative reward for following a specific character arc.
Can You Unlearn or Reverse Your Choices
You cannot unlearn Avada Kedavra once you’ve learned it. The spell stays in your spellbook permanently for that playthrough. But, if you regret your dark path, you can avoid using the spell. Choosing light magic going forward doesn’t delete Avada Kedavra from your inventory, but you can ignore it and never cast it again.
Story-wise, the consequences of learning Avada Kedavra can’t be reversed in a single playthrough. If you’ve committed to the dark path and learned the curse, your ending is locked into the dark branches. You can’t undo your relationship with Sebastian or reset your house points mid-game through a confession quest or similar mechanic.
The only “true” way to reverse your choices is reloading a save from before you learned Avada Kedavra. If you saved before the Sebastian questline offering the curse, you can revert and pursue a different path. But there’s no in-game mechanic to “undo” the dark path once committed.
Some players manage dual playthroughs or use multiple save files, one for a dark playthrough where they learn Avada Kedavra, and one for a light playthrough where they avoid it entirely. This lets you experience both endings and playstyles without losing one or the other.
One clarification: the game doesn’t have a “morality meter” that locks you permanently into light or dark categories. You can be wildly inconsistent with your choices overall. But, the Avada Kedavra questline specifically checks your choices within Sebastian’s arc. If you’ve been inconsistent elsewhere but committed with Sebastian, you still get the spell. If you’ve been generally good but made some dark choices outside Sebastian’s arc, you don’t automatically unlock Avada Kedavra, Sebastian’s trust is the gate, not your overall reputation.
For more on how relationship choices shape your story, the Hogwarts Legacy Relationship Quests guide covers other character bonds and their consequences.
Conclusion
Learning Avada Kedavra in Hogwarts Legacy is a reward for genuine commitment to a dark magic playthrough. You can’t stumble into it or unlock it as a casual side feature, it requires you to build a relationship with Sebastian Sallow, make consistent dark arts choices throughout Year 5, and prove yourself trustworthy enough to learn the darkest curse in the game.
The spell arrives during the “In the Shadow of the Relic” questline in Year 5, but the actual timing depends on how you’ve treated Sebastian since the game’s beginning. If you’ve shown interest in dark magic, accepted invitations to forbidden spell practice, and sided with him during critical moments, Sebastian will teach you. If you’ve been dismissive or inconsistent, you’ll miss out entirely.
Once you have Avada Kedavra, it becomes the centerpiece of a dark magic loadout. Pair it with Crucio, Imperio, and utility spells to create a cohesive curse-focused playstyle. The spell’s long cooldown and instant-kill mechanic make it a tactical decision tool rather than a spam ability, use it wisely against the toughest enemies or at critical moments in boss fights.
The consequences are real. House points drop, NPC perceptions shift, and your ending branches toward the dark conclusion. For players roleplaying as a dark wizard or seeking the raw power of the Unforgivable Curse, these costs are worth it. For those prioritizing a light-aligned story, simply skip Sebastian’s dark path entirely and build a different loadout.
Eventually, when you learn Avada Kedavra depends entirely on your choices. Plan ahead, commit to the dark path if you want the spell, and embrace the narrative consequences of mastering the darkest magic Hogwarts Legacy offers. For additional Hogwarts Legacy coverage including guides on various mechanics and systems, check out the Hogwarts Legacy Archives on Gekisen Yoyaku. According to VGC’s coverage of the game, Hogwarts Legacy continues to be a benchmark title for magical school gameplay, and understanding its deeper mechanics like dark magic unlocks makes playthroughs significantly richer.
