No. A patronus charm cannot block Avada Kedavra. Only physical objects can block Avada Kedavra. Physically solid objects like table, wall, door, and of course, humans and animals.
A Patronus can't be used as a generic counter-curse or defensive spell in the same way that Protego can. Secondly, you can't block Avada Kedavra with anything.
There is no way to block the curse - otherwise countless people could have easily been saved. The Abada Kedavra has no counter, cannot be blocked and is irreversible.
Phoenixes were semi-protected from the Killing Curse, due to them being immortal. In 1996, Fawkes swallowed one intended for Albus Dumbledore, causing him to burst into flame and die instantly. However, he then was reborn from his ashes. This makes phoenixes resistant to the Killing Curse.
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.
Ranrok absorbs this swirling crimson substance and becomes the Ranrok Dragon that players then fight as Hogwarts Legacy's final boss, but because it is composed of magic and adorned in what looks like metal or stone, Avada Kedavra is not effective on it at all.
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.
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.
Lightsabers are just a stick of solid light. Avada Kedavera would go right through it. Unless you cast a shielding charm all over your body before Avada Kedavera is cast, there is no deflecting it unless someone enforces love on you.
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.
She stared Bellatrix down and challenged her to a one-on-one duel. Molly Weasley had hit Bellatrix Lestrange straight in the heart with an unspecified spell and killed her on the spot. Since Avada Kedavra is an unforgivable curse, many fans have argued that it is not what Molly used.
If you decide against learning Avada Kedavra from Sebastian, that's not the last chance you'll get to learn or use the spell. Once you return to the castle, you can visit Sebastian in the Undercroft in the Defence Against the Dark Arts tower, and ask to learn about it.
When the time comes, and Snape is facing Dumbledore with his wand out at the top of the Astronomy tower- he finally releases the spell that ends Dumbledore. We can very clearly see that Snape used the most effective method of killing known to the Harry Potter story- avada kedavra, the killing curse.
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.
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.
Harry Used The Imperius Curse Multiple Times During The Gringotts Heist. Harry does use Unforgivable Curses in the last movie, despite Harry Potter using Unforgivable Curses seeming unlikely because of his hero status. Death Eaters had a history of using Imperio to make innocent victims do their bidding.
None of the good guys dare use the Killing Curse throughout the events of the movies and books, no matter how high the stakes and how difficult things are. But Ron Weasley is the exception, giving it a go in the Deathly Hallows: Part 2 movie when himself and Hermione look destined to die via Nagini.
As the youngest Weasley, we're sure Ginny observed more than her fair share of unpleasant spells over the years but it was the Bat Bogey Hex she was famous for – and with good reason.
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.
Lily's Protection In Voldemort's Blood Saved Harry
When Lord Voldemort returned Harry Potter and the Goblet of Fire, he used Harry's blood - which is partially how Harry survived Avada Kedavra in the forest.
However, players are unable to cast the Killing Curse on enemies who are not meant to actually die after that encounter, such as the Graphorn players fight before it becomes an available mount. Likewise, players cannot use Avada Kedavra on the Ranrok Dragon boss.
Avada Kedavra, also known as the Killing Curse, kills a person instantaneously and without injury. There is few counter for it, and only one person, Harry Potter, has ever survived it with Sacrificial Protection that has been endowed upon Harry Potter by His Mother Love for Him.