The Patronus Charm is perhaps the most notorious difficult-to-cast spell in the wizarding world, and it's certainly the first one to come to mind for most fans. The Patronus Charm requires the caster to hold on to a moment of pure happiness—as in, they must think of their happiest memory.
Avada Kedavra
Topping the list for the most powerful spells in the Harry Potter universe is no other than Avada Kedavra, Voldemort's favorite to instill his will and fear onto others. The spell itself is a play on Abra Kadabra and is easy to cast by just about anyone in the Wizarding World.
Riddikulus
Riddikulus is the spell that's used when facing a Boggart, and it's used to turn the Boggart into something that the caster finds funny. While this is definitely a useful and necessary spell in this one situation, it's a rather weird idea.
The 'Inner Eye' is often said to be a rare and much sought-after skill in the wizarding world, with many in the community looking to Seers to find the answers in life.
Looking to embrace the Dark Arts in Hogwarts Legacy? Well, you'll be glad to know that you have the option to learn three of the most powerful dark spells in the wizarding world – also known as the Unforgivable Curses: Crucio, Imperio, and Avada Kedavra.
Avada Kedavra
It's used to kill people, it's an Unforgivable Curse, and it was Voldemort's favourite, so it's going last.
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.
The albatross is the rarest Patronus on our list; the one belonging to the lowest number of Wizarding World fans.
Elder. The rarest wand wood of all, and reputed to be deeply unlucky, the elder wand is trickier to master than any other.
7 Draco Malfoy: The Protean Charm.
Hermione's bluebell flames
Hermione's magical talents meant she was good at every spell, right from the beginning – Wingardium Leviosa, anyone? But the bluebell flames she once used against Snape became one of her trademarks, and it's also one of our favourites.
Malfoy spots Harry and casts a Cruciatus curse; Harry, defending himself, using the Half-Blood Prince's Sectumsempra spell without knowing its effects. To his horror, it gashes Draco's face and chest, spilling his blood everywhere.
The three curses that are classified as Unforgivable are the Imperius Curse, the Cruciatus Curse, and the Killing Curse. Mad-Eye Moody introduces Harry and his class to these curses in Harry Potter and the Goblet of Fire.
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.
Nobody can deny that Hermione Granger is the smartest character in Harry Potter, gender notwithstanding. She is consistently the best student in every year, earning extraordinary marks in all her exams and ten OWLS.
1. Neville Longbottom / Matthew Lewis.
Number one on the list of the best Harry Potter characters is Hermione Granger. Emma Watson's portrayal of the bright, mature, and brave young wizard is spot-on and an incredible performance given how young Watson was at the time the first film, Harry Potter and the Sorcerer's Stone, was released.
1 Harry Potter's Stag
Harry's Patronus, a stag, is certainly the most prominent in the series (and among the best Patronuses in the Wizarding World), as well as the strongest Patronus in the films. Unlike many wizards, he could produce his Patronus at the age of thirteen, with guidance from Remus Lupin.
Basilisk. In the Harry Potter universe, a Basilisk is a monstrous serpentine creature. Larger than its counterpart from the real-life legend, this Basilisk is capable of reaching a length up to sixty feet and living up to hundreds of years.
Other Favorite Spells
Plus, there were some votes for Obliviate (erases memory), Silencio (silences someone or something), Homonculus Charm (reveals someone's true identity and location), and Levioso (levitation, and some fans say that this is Ron Weasley's signature spell).
In Harry Potter And The Deathly Hallows Part 2, Voldemort kills Snape using his snake Nagini instead of his favorite spell Avada Kedavra - here's why. Voldemort killed Snape in Harry Potter And The Deathly Hallows Part 2 using his Horcrux snake Nagini instead of his favorite Unforgivable Curse, Avada Kedavra.
Cruciatus Curse ('Crucio')
Harry tried to use this spell himself. The first time was against Bellatrix after she had killed Sirius. His attempt was unsuccessful because, as Bellatrix mockingly explained: 'You need to really want to cause pain – to enjoy it – righteous anger won't hurt me for long…'