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95 votes

Why isn't Sectumsempra an Unforgivable Curse?

Not many people knew Sectumsempra - they'd need to know it exists to ban it. Severus Snape invented Sectumsempra while at Hogwarts, and wrote it down in his Potions book. He doesn't seem to have told ...
Obsidia's user avatar
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94 votes
Accepted

Why isn't Sectumsempra an Unforgivable Curse?

It isn't Unforgivable in the way that the Unforgivables are A popular fan theory is that there is no grey area with Unforgivable curses. They do what they say on the tin and nothing else. Killing ...
Korthalion's user avatar
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70 votes
Accepted

What were Mad-Eye and Neville talking about after the Unforgivable Curses scene?

In what is presumably Moody's first one on one conversation with Neville, after he teaches the class about Unforgivable Curses and Neville is visibly upset at the demonstration of the Cruciatus Curse. ...
Obsidia's user avatar
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57 votes

How skilled does a wizard need to be to successfully perform the three Unforgivable Curses?

It's not related to skill, it's related to emotions and power. When Harry tortures Bellatrix in book 5, she tells him "you need to mean it" for it to work. So the wizard would have to be powerful ...
circo's user avatar
  • 511
50 votes
Accepted

Can someone under an Imperius Curse know what is happening?

Barty Crouch Jr, who has a lot of experience in both ends of the Imperius curse, tells us that its victims can be aware of their situation, although normally they are not: ‘But your father escaped,’ ...
chirlu's user avatar
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49 votes

Why isn't the Memory Charm (Obliviate) an Unforgivable Curse?

The Unforgiveable Curses are the curses for which there is no legitimate use at all. A memory charm could have, and does have, legitimate, honourable uses - modifying the memory of a muggle who's seen ...
Werrf's user avatar
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49 votes
Accepted

Who created Avada Kedavra?

Unknown, but its creation was before 1717. Nothing is ever said about the inventor of Avada Kedavra, but it was invented before 1717, because it was classified as an Unforgivable Curse by the British ...
Obsidia's user avatar
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45 votes
Accepted

What did Ron Weasley's dad know about the Imperius Curse?

The Ministry had to sort out which people who worked with Death Eaters were Imperiused. Arthur Weasley, as an employee of the Ministry of Magic, would have been working there when the Ministry was ...
Obsidia's user avatar
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44 votes

What were Mad-Eye and Neville talking about after the Unforgivable Curses scene?

Don't disagree with the accepted answer, but it leaves out why Neville was so upset by the Cruciatus curse demonstration to be begin with. Neville's parents were tortured into insanity by Voldemort's ...
markgo2k's user avatar
  • 471
38 votes
Accepted

Can a single Killing Curse kill more than one soul?

Avada Kedavra seems to only work on one target per spell. It seems like once Avada Kedavra hits one living target, it’s “used up”. Fawkes was able to take a Killing Curse for Dumbledore. Once it hit ...
Obsidia's user avatar
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37 votes
Accepted

Why couldn't Moody beat Crouch's Imperius?

Moody was kept in a trunk so it might not matter if he had fought it. It seems like Moody was placed under the Imperius Curse after he was already captured using other methods. “We journeyed to his ...
Obsidia's user avatar
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36 votes
Accepted

How skilled does a wizard need to be to successfully perform the three Unforgivable Curses?

It's unclear how much skill it would take to cast an Unforgivable Curse. Mad-Eye Moody (actually Barty Crouch Jr. using Polyjuice Potion) says that the students in his class could all attempt the ...
Obsidia's user avatar
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35 votes

Why didn't Barty Crouch Jr just use Imperio on Moody?

Some of the reasons could be: Moody was a very powerful auror and it would have been very difficult to keep him in control for that long. Barty Crouch Jr. was able to overpower him by taking him by ...
XYZ's user avatar
  • 1,607
34 votes

Can someone under an Imperius Curse know what is happening?

No, when the Imperius Curse is working, the Imperiused person won’t remember anything. Once the Imperius Curse works properly and the target was not able to resist it, they do not have any memory of ...
Obsidia's user avatar
  • 106k
27 votes

Who created Avada Kedavra?

J.K. Rowling never - up till so far - mentioned the creator or the first famous user of the spell. She only mentioned in an interview, according to another answer on another question, that it's ...
sophievda's user avatar
  • 379
24 votes
Accepted

Did Barty Crouch Jr. participate in the torture of Neville's parents?

Yes he most likely did, but he denied it to save himself from Azkaban. The Death Eaters that tortured the Longbottoms were Bellatrix, Rabastan and Rodolphus Lestrange, and Barty Crouch Jr. However, ...
Obsidia's user avatar
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22 votes

According to canon, did Dumbledore ever use an Unforgivable curse?

Quite possibly. I don't think we can say definitively. But Dumbledore's character and beliefs can give us a good idea. Let's take the curses one at a time. The Imperius Curse I highly doubt that ...
The Dark Lord's user avatar
22 votes

Why did Moody need three spiders?

Using three spiders makes clear each is the effect of one spell. While he could have used the same spider for all the Unforgivable Curses, using three different spiders is a good way to make it clear ...
Obsidia's user avatar
  • 106k
21 votes

When did wizards and witches first learn that a love-sacrifice protects against the Killing Curse?

It is only said as being ancient magic. It is never said exactly how wizards know of the type of magic created by a willing sacrifice. Harry is explicitly stated to be the first known survivor of the ...
Obsidia's user avatar
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19 votes

Why did Bellatrix rely on torture and the word of a goblin to get information from Hermione, and not use the Imperius curse?

Imperio is used to control someone's actions, it mightn't make them give you information. All of the times we've seen the Imperius Curse used, it was to make someone do something. The actions may have ...
Obsidia's user avatar
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19 votes

Why didn't Barty Crouch Jr just use Imperio on Moody?

The Imperius curse, like all magic in Harry Potter, isn’t foolproof. As Crouch (impersonating Moody) himself explains it in class: ‘The Imperius curse can be fought, and I’ll be teaching you how, but ...
chirlu's user avatar
  • 2,943
16 votes

Why didn't Barty Crouch Jr just use Imperio on Moody?

Barty Crouch Jr. has more control being Moody than Imperiusing the real one. First of all, and perhaps most importantly, Barty Crouch Jr. would be able to strategically plan his actions much better ...
Obsidia's user avatar
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16 votes
Accepted

What are the requirements for Imperio?

No, Imperio doesn’t seem to have any emotional requirements. Harry casts Imperio twice in Gringotts, without particularly strong emotions against the victims. It’s also important to remember, these ...
Obsidia's user avatar
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14 votes

Why isn't Sectumsempra an Unforgivable Curse?

Since only Snape and Harry ever cast it, the Ministry doesn't really need to be concerned Severus Snape invented Sectumsempra. When Harry tried to cast it on Snape, he said: "You dare use my own ...
Thunderforge's user avatar
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13 votes

Can a single Killing Curse kill more than one soul?

The spell used by Wormtail might be an example of Avada Kedavra killing multiple targets. Bellatrix has found a good example from the books of Avada Kedavra seemingly only affecting one target at a ...
The Dark Lord's user avatar
13 votes

What are the requirements for Imperio?

It seems likely that the same requirement exists for the Imperius Curse that exists for the Cruciatus Curse. When Harry uses the Imperius Curse for the first time in Gringotts, we see the following: ...
Alex's user avatar
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12 votes
Accepted

How many times has Harry faced the Imperius curse?

You missed it further down the page in chapter 15, just after the first time. Moody Imperios him and tries to get Harry to jump on the desk. He fails and Moody praises him. He then does it again (this ...
Valorum's user avatar
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11 votes

What did Ron Weasley's dad know about the Imperius Curse?

The quote as you had it at first, was not quite correct. There's no "he", so it wasn't Arthur Weasley himself who gave the Ministry "a lot of trouble". Here's the relevant quote from the book: "So ...
SQB's user avatar
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11 votes

Why isn't Sectumsempra an Unforgivable Curse?

Because at most two or three people seemed to know about it. The spell literally only appears on people tightly related to Snape. The only reason Harry knew the spell is because he ended up with ...
Radhil's user avatar
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