- "There was a loud bang and he felt himself flying backwards as if punched; as he slammed into the kitchen wall and slid to the floor, he glimpsed the tail of Lupin's cloak disappearing round the door."
- —Lupin uses this on Harry.[src]
The Knockback Jinx can be rebounded to its caster by means of either the Disarming Charm or the Shield Charm, the former being a much more common means of defence, as taught by Defence Against the Dark Arts teacher Professor Gilderoy Lockhart.
In the second year, students learn how to charge up the spell to more powerful levels (without casting the variations). To do so, one must hold their power in their wand and release their magic when the blue spell turns a strange purplish-red colour. Past this point, the spell will backfire in mid-cast, or fly back to the caster, damaging them somewhat.
This jinx was taught by Professor Quirinus Quirrell to his first year class in 1991; they later used it to defeat the various imps, fire crabs, and pixies residing in Hogwarts Castle, as well as helping to protect themselves against the monsters in the Forbidden Forest.
Professor Gilderoy Lockhart revised this with his second year class in the 1992-1993 school year for use in duelling. He then had Harry Potter and Draco Malfoy duel each other with it, the winner earning fifty points for their house
- Dobby the House Elf
- Draco Malfoy
- Garrick Ollivander]
- Gregory Goyle
- Harry Potter
- Hermione Granger
- Quirinus Quirrell
- Remus Lupin
- Ronald Weasley
- Severus Snape
- Vincent Crabbe
Behind the scenes
- This jinx can be bought at Wiseacre's Wizarding Equipment in Diagon Alley.
- In the films, Everte Statum and Rictusempra are used instead.
- Every time Harry had this jinx used on him, it was because he had called the caster a coward.
- A spellbook detailing how to cast this spell could be found in Ollivanders Wand Shop.
- In the Harry Potter and the Philosopher's Stone (video game) Harry can cast this spell on Flipendo Buttons to activate certain mechanisms such as lifting a portcullis or moving flying platforms.
- Harry Potter and the Philosopher's Stone (video game) (First appearance)
- Harry Potter and the Chamber of Secrets (video game)
- Harry Potter and the Prisoner of Azkaban (video game)
- Harry Potter and the Goblet of Fire (video game)
- Harry Potter and the Order of the Phoenix (video game)
- Harry Potter and the Half-Blood Prince
- Harry Potter and the Half-Blood Prince (film)
- Harry Potter and the Half-Blood Prince (video game)
- Harry Potter and the Deathly Hallows
- LEGO Harry Potter: Years 1-4
- LEGO Harry Potter: Years 5-7
- Pottermore (Spells / Duels)
- Harry Potter Trading Card Game
Notes and references
- ↑ 1.0 1.1 1.2 1.3 1.4 Pottermore
- ↑ 2.00 2.01 2.02 2.03 2.04 2.05 2.06 2.07 2.08 2.09 2.10 2.11 Harry Potter and the Chamber of Secrets (video game) (PS2 version)
- ↑ 3.0 3.1 3.2 3.3 3.4 Harry Potter and the Philosopher's Stone (video game)
- ↑ 4.0 4.1 4.2 Harry Potter and the Half-Blood Prince - Chapter 28 (Flight of the Prince)
- ↑ 5.0 5.1 5.2 Harry Potter and the Deathly Hallows - Chapter 11 (The Bribe)
- ↑ 6.0 6.1 6.2 6.3 Harry Potter and the Prisoner of Azkaban (video game)
- ↑ LEGO Harry Potter: Years 1-4
- ↑ Harry Potter and the Chamber of Secrets (film)