Originally Answered: What happen if we do "avada kedavra" to Voldemort? At that time Voldemort tried to kill Harry with Avada Kedavra (AK) but the curse was rebounded by Lily's love protection which send the curse back to Voldemort. The dark wizard was hit by his own AK and he would normally die.
Along with the Cruciatus Curse and the Imperius Curse, Avada Kedavra is considered to be one of the most terrible curses in the magical world, called the Unforgivable Curses; the use of any of the three on another witch or wizard is punishable by a life sentence in Azkaban.
Why Harry Didn't Cast Avada Kedavra. Throughout the Harry Potter series, the titular hero never used the Killing Curse for several reasons. Avada Kedavra was Lord Voldemort's signature spell.
Its basically taboo. In the magical world, using one of the three unforgivable curses is the worst possible thing a person could do, and avada kedavra's the worst of them. Nobody half decent would use avada kedavra, and the people who were ready to use the spell were all on voldemort's side anyway.
No, harry did not use the killing curse at all (he used the expelliarmus spell in the picture above). Voldemort's own killing curse rebounded on himself when Voldermort's wand (aka the Elder wand) realised that Harry is the true master of it.
Harry became so enamoured with the spell that he eventually used it to finish off Lord Voldemort. Here's how Harry's relationship with Expelliarmus became his signature – and why that's a good and bad thing.
Some would say there's no spell worse than Avada Kedavra, the Killing Curse that Voldemort used so indiscriminately.
Avada Kedavra, also known as the Killing Curse, kills a person instantaneously and without injury. There is no countercurse for it, and only one person, Harry Potter, has ever survived it.
In order to conjure the avada kedavra curse, you have to want to kill your victim. We all know that Voldemort could easily kill a child without an ounce of remorse... but not Snape. Snape didn't want to kill Dumbledore, and this was why the spell was blue instead of the usual green.
Using Avada Kedavra while the Elder Wand was resisting Voldemort was already a risky business, but using it against the true owner would be suicide (as Voldemort would find out when he used the Elder Wand against its true owner: Harry). So he used something to kill Snape that wouldn't backfire: Nagini.
Snape successfully casting Avada Kedavra against Dumbledore is a powerful, overlooked piece of magic. You have the really mean the unforgivable curses.
16. Avada Kedavra. J.K. Rowling has spoken about the root of this spell. According to Rowling, its root is actually Aramaic and derives from the original "abracadabra," which means "let the thing to be destroyed." In this case, the thing is a person.
Voldemort intentionally made six Horcruxes, but when he used Avada Kedavra on Harry, he unintentionally created a seventh Horcrux. Instead of dying, Lily's love for Harry created a counter 'curse' known as Sacrificial Protection and saved Harry.
Expelliarmus did not beat Avada Kedavra.
Voldemort's wand (the elder wand) recognized its true master (that was Harry) and refused to attack it. In a way Voldemort killed himself as his own spell backfired on him.
And while many fan-favorite characters have fallen victim to the Killing Curse, one surprising figure working at Hogwarts School of Witchcraft and Wizardry may possess limited immunity from the spell's full, lethal effects: Rubeus Hagrid.
The Killing Curse was created in the early Middle Ages by Dark witches and wizards. Primarily, the curse was used to quickly slay opponents during a duel. In 1707, the Wizards' Council was restructured into the Ministry of Magic, which allowed for more strict restrictions on certain types of magic.
Its incantation is Avada Kedavra. The only known counter-spell is sacrificial protection, which uses the magic of love.
It was Snape who taught Harry his signature spell: Expelliarmus. During Duelling Club in Harry's second year, Snape used the Disarming Charm against Lockhart.
Sectumsempra was a curse invented by Professor Severus Snape that lacerates the target and causes severe haemorrhaging. Snape created it as a student of Hogwarts, with the intention of using it against his enemies, likely including the Marauders, and it became one of his specialities.
Nagini was Lord Voldemort's final Horcrux
In an interview, J.K. Rowling revealed that it was the murder of Bertha Jorkins that made Nagini a Horcrux. After Voldemort discovered his Horcruxes were in danger, Nagini was magically protected, described as being encased in a 'starry, translucent sphere'.
Firestorm. Firestorm was a spell that created a large ring of fire around the caster's wand. This spell is one of the last and most powerful spells that Albus Dumbledore cast using the elder wand before his death.
After being on the run from a bunch of Snatchers, the gang were taken to Malfoy Manor, where Bellatrix proceeded to torture Hermione using the Cruciatus Curse.
Harry Potter and the Half-Blood Prince (2009)
It is arguably the darkest movie in the franchise, which makes it so interesting to watch. The best aspect about this film is the character arc of Draco Malfoy as he struggles with becoming a death eater.