Voldemort appears in Harry Potter And The Deathly Hallows Part 2 killed Severus Snape with his Horcrux snake Nagini rather than his favourite Unforgivable Curse Avada Kedavra. Rowling’s books of the same name. On occasion, he didn’t use Avada Kedavra. Foes, though, and he killed characters in other ways as well. Here’s why Snape’s tragic death was unique.
Snape appears to switch his allegiance between Dumbledore (Michael Gambon) and Voldemort throughout the Harry Potter films. The final movie reveals that Snape had always been on the good side. He swore to protect Harry and did Dumbledore’s bidding in his war against Voldemort, including the hazardous task of infiltrating the Death Eaters, which Harry drops into a Pensieve. After The Half-Blood Prince, Voldemort assumed the Elder Wand belonged to Snape.
Voldemort realized he couldn’t use Avada Kedavra to kill the Elder Want’s master, so he entrusted Nagini with the task. In reality, Draco was the one who disarmed Dumbledore in the Astronomy Tower, so Snape’s tragic death was for naught, at least while Voldemort still believed Snape was a loyal Death Eater.
Voldemort’s faith in Snape reveals yet another theory about Voldemort’s method of assassination. Voldemort’s confusion over Elder Wand’s allegiance eventually led to Harry’s victory against him. After a skirmish, Harry takes possession of the Elder Wand after disarming Draco with his regular wand. Voldemort’s attempt to use Avada Kedavra on Harry backfires, killing him instead.