At the end of the series, Dumbledore admits to Harry that power is his ultimate weakness. He was always conscious of it, and he feared that power had the potential to corrupt him beyond help. That's why he never accepted the Ministry of Magic position even after it was offered several times.
After it was revealed that Dumbledore was devastated by the accidental death of his sister during a fight with Grindelwald and his brother, Aberforth, it became clear that Dumbledore's deepest desire, and regret, involved his family.
Hermione could beat Dumbledore any day if she wanted to. She's one of the most brilliant minds of her generation; like any good Gryffindor, she's brave, loyal, and strong. She mastered advanced spells at a young age, could make any potion perfectly, and her quick thinking saved her, Ron, and Harry more than once.
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.
The Killing Curse ('Avada Kedavra')
If this countdown were about which spell is the most unforgivable we might agree – but weirdly enough it's not. In our eyes, the quick death afforded by Avada Kedavra seems to us a (very slightly) better option than suffering the curses below.
Besides Dumbledore, he is also the only wizard ever known to be able to apparate silently. Voldemort was also said to fear one wizard alone, Dumbledore. In the final book, Voldemort flies unsupported, something that amazes those who see it.
While Dumbledore is undoubtedly a powerful wizard, Gandalf's innate magical abilities give him an edge in a battle between the two. Gandalf's fire magic, telekinesis, and healing powers would make him a formidable opponent for Dumbledore.
Albus Dumbledore
"Severus, please." Watching Snape kill the Hogwarts headmaster was gutting; finding out that Dumbledore "begging for his life" was actually begging Snape to kill him was a sad reminder of just how selfless this man was.
Author JK Rowling announced Albus Dumbledore was gay in 2007. It's known that he and Grindelwald were in a romantic relationship but it had never been explored in the previous Harry Potter films. Fantastic Beasts 3 might address the depth of their relationship.
Let's see: nitwit means a daft person, blubber means extra fat, oddment means a portion of cut-off fabric, and tweak means to slightly adjust something.
No, Dumbledore's dark secret was never that he had aided Grindlewald or sought the Deathly Hallows, although he expressed regret for both of these things years later. The secret he swore to keep hidden, out of shame and remorse, was that he had taken part in his sister Ariana's death.
Ariana died when she was accidentally struck by a curse in a three-way duel between her older brothers and Dark Wizard Gellert Grindelwald, Albus's friend at the time; it was never known who struck the killing blow. This event would have a profound impact on both her brothers' lives.
Gaunt's ring
The ring was hidden in the remains of the Gaunt family shack, and the defensive spells placed around it had to be overcome by a very powerful wizard. After retrieving the ring Albus Dumbledore himself fell victim to a curse that, even when contained, would likely have killed him within the year.
Voldemort's greatest fear is death and as a result a boggart takes the form of his own corpse. It is unsurprising that this is Voldemort's biggest fear. After all, he did split his soul up encasing it in various horcruxes just so to keep himself from dying.
Dumbledore reveals how thoroughly he loves Harry. Harry is brave, and Dumbledore is proud as any father would be. More than that, Dumbledore succumbs to a parent's weakness; he cares more about Harry's happiness and wellbeing than the wizarding world he is trying to protect.
Bellatrix Lestrange (née Black) is the first female Death Eater introduced in the books. Aunt of Draco Malfoy and Nymphadora Tonks. She was introduced in Harry Potter and the Order of the Phoenix. She is the most faithful member of Voldemort's inner circle.
Later in the year, McGonagall duelled with Death Eater Alecto Carrow during the Battle in the Astronomy Tower and later learned of Snape's murder of Dumbledore. McGonagall was initially appointed as Headmistress, but was demoted after Voldemort took control of the school and placed Snape as Headmaster.
However, Draco was ordered by Voldemort to kill Dumbledore. Lestrange saw this as an opportunity to test Snape's loyalty and while making this vow to always watch over Draco, Lestrange forced Snape to agree to killing Dumbledore himself in case the youngster was unable to do so.
Pursuing, McGonagall screams, "Coward!" Uncloaked, Harry and Luna rush inside, startling the other professors. Snape has leaped out the window. Harry thinks he must be dead, but McGonagall bitterly comments that, unlike Dumbledore, Snape had a wand and has learned a few tricks from "You-Know-Who".
Speak to Sebastian in the Undercroft after this and he'll teach you any Unforgivable Curses you have missed up to that point, including Avada Kedavra. It's worth learning the curse as doing so should have no negative outcome on the game's story.
When the Dark Lord used Avada Kedavra for the final time in the Harry Potter series, the spell deflected due to Harry's ownership of the Elder wand, killing Voldemort with his own signature spell. Following Voldemort's demise, the Unforgivable Curses were strictly deemed illegal by the Ministry of Magic.
Though Harry encountered many opportunities that deemed Avada Kedavra necessary, it remains as one of the Unforgivable Curses Harry Potter never cast. For one, he viewed the spell as an immoral practice commonly used by users of the Dark Arts.