10 Harry Potter: Expelliarmus / Expecto Patronum Throughout the entirety of the franchise, Harry is thrown into the most heat, and his skills as a wizard are constantly tested. That being said, his go-to spell has to be Expelliarmus.
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.
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.
1. Expecto Patronum. This is undoubtedly the most popular spell in the film series. This powerful defensive incantation uses a happy memory to conjure something positive, like a silvery-white animal that can chase off Dementors.
One of the most iconic spells in the series, if not the most iconic, is Expecto Patronum. This spell is useful not only to fend off Dementors, but also as a way to communicate with others over large distances.
Therefore, figuring out a spell that is Draco's favorite is hard and, in the movies, there is no defining moment that cements a spell as his favorite. Based on Harry Potter lore, and an article by The Healthy Journal, Draco's signature spell is a N.E.W.T standard spell, The Protean Charm.
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.
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.
What Is Dumbledore signature spell? There were two; Apparation and Invisibility. Dumbledore must have used these particular skills thousands of time in his lifetime for any number of purposes. His vast gathering of knowledge probably came as a result of his skill in appearing and disappearing at will and unseen.
The darkest of the Dark Arts, Harry Potter unforgivable curses are the Cruciatus Curse, the Imperius Curse, and the Killing Curse. Although the curses are highly illegal, Harry using Unforgivable Curses happened, but he uses them once he was thrust into the Second Wizarding War.
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.
Those that are gifted with the power of flight are perhaps more rare than any other wizard that has any other power.
Stupefy since he used it during the fight in the Department of Mysteries or Wingardium Leviosa since he used it to defeat the troll in the girls' bathroom in the first book.
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.
So why does Harry always use Expelliarmus? Well that would be just his natural reaction. From the wiki page harrypotter.wikia.com/wiki/Harry_Potter it says that Expelliarmus is his signature spell and would thus be his natural response to any attacks. Just like if person A trained the hammer fist a lot.
In Deathly Hallows, Hermione faced a real test of her physical and psychological stamina. 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.
Her greatest fear was probably failure
' Ron was joking (as he often does) but he was actually very close to the truth. Part of the reason Hermione worked so hard was that she was terrified of getting things wrong and letting people down – a common trait among high achievers.
Densaugeo was the incantation of a hex which caused the front teeth to elongate at an alarming rate.
Harry used Expelliarmus , a disarming spell, on Voldemort in the final battle because Harry was never going to cast a killing curse on someone, even Voldemort.
Ginevra Weasley was well-known for her ability to cast a particularly potent Bat-Bogey Hex, which could be considered her signature spell as she used it several times on people who annoyed her and was referred as "an accomplished caster" of the spell.
I've always suspected Molly's lethal spell was a particularly well-placed and powerful stunner that stops Bellatrix's heart, which is consistent with the description of her death: Molly's curse soared beneath Bellatrix's outstretched arm and hit her squarely in the chest, directly over her heart.
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.
Priori Incantatem, also known as the Reverse Spell, is a magical spell in the Harry Potter universe that reveals the most recent activity of a wizard's wand.
One of the oldest spells in the Wizarding World, Accio is taught to Hogwarts students during their fourth year. Perhaps its most memorable use in the series is Harry's summoning of his broom during the Triwizard Tournament, and of the Triwizard cup after the resurrection of Voldemort.