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"With this powerful curse, skilled wizards can easily reduce obstacles to pieces. For obvious reasons great care must be exercised when learning and practising this spell, lest you find yourself sweeping up in detention for it is all too easy to bring your classroom ceiling crashing down, or to reduce your teacher's desk to a fine mist."
Miranda Goshawk[src]

The Reductor Curse[3] (Reducto[1]) is a curse that blasts solid objects to pieces.[1] It is rather easy to reduce a target to a fine mist[3] or a pile of ashes.[2] Harry Potter taught this curse to Dumbledore's Army during the 1995-1996 school year.

History

It is unknown when and who invented this spell. It was used multiple times during the Second Wizarding War. It is also featured in the Wonderbook: Book of Spells and commented on Miranda Goshawk.

This is one of the spells that Harry Potter taught Dumbledore's Army. It was used throughout the Second Wizarding War, such as the Triwizard Tournament and the Battle of the Department of Mysteries.

Known uses

" Five different voices behind him bellowed, "REDUCTO!" Five curses flew in five different directions and the shelves opposite them exploded as they hit; the towering structure swayed as a hundred glass spheres burst apart, pearly-white figures unfurled into the air and floated there, their voices echoing from who knew what long-dead past amid the torrent of crashing glass and splintered wood now raining down upon the floor — "
D.A. members smashing the shelves in the Hall of Prophecy[src]
Caster(s) Date Notes
Severus Snape 25 December, 1994 Snape used this on rosebushes at the Yule Ball after his talk with Karkaroff.
Harry Potter June 1995 Harry learned this spell in 1995 in preparation for the third task of the Triwizard Tournament.
24 June, 1995 He used it in the hedge maze to try and disperse the Limbo mist that was placed there as an obstacle.
He used it again when he need to blast away a bush to get through and save Cedric from Victor, who was under the Imperius Curse.
Parvati Patil Fall 1995 Parvati used this curse during a D.A. to reduce a table to rubble.
Harry Potter 18 June, 1996

This spell was later used during the Battle of the Department of Mysteries and resulted in the smashing of the shelves in the Hall of Prophecy.

Hermione Granger
Ginny Weasley
Ron Weasley
Luna Lovegood
Neville Longbottom
Order of the Phoenix member

30 June, 1997

Used to try and get past the Cursed Barrier in The Battle of the Astronomy Tower, the night Albus Dumbledore died

Known practitioners

Etymology

The incantation "reducto" is  Latin for "reduce" or "bring down".

Behind the scenes

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in the film

Appearances

Notes and references


Defence Against the Dark Arts (D.A.D.A.)
Subjectsdada
D.A.D.A. at Hogwarts
Classroom 3C · Temporary Classroom · Hogwarts Turris Magnus · Teacher's Office · Storeroom · Staircase · Lesson Cup · Race Cup · Dumbledore's Army
Professors
Arsenius Jigger · Albus Dumbledore · Galatea Merrythought · Patricia Rakepick · Quirinus Quirrell · Gilderoy Lockhart · Remus Lupin · Bartemius Crouch Junior (as Alastor Moody) · Dolores Umbridge · Severus Snape · Amycus Carrow (as Dark Arts teacher)
Textbooks
The Dark Forces: A Guide to Self-Protection · Break with a Banshee · Gadding with Ghouls · Holidays with Hags · Travels with Trolls · Voyages with Vampires · Wanderings with Werewolves · Year with the Yeti · The Essential Defence Against the Dark Arts · Defensive Magical Theory · Dark Arts Defence: Basics for Beginners · Confronting the Faceless · Magical Drafts and Potions
Spells studied at Hogwarts under D.A.D.A.
Aqua Eructo Charm · Boggart-Banishing Spell · Counter-curses · Counter-jinxes · Counter-spells · Curse of the Bogies · Defensive Charms · Disarming Charm · Freezing Spell · Full Body-Bind Curse · Green Sparks · Hex-Breaker· Hex-deflection · Hex Zapper · Homorphus Charm · Impediment Jinx · Knockback Jinx · Knockback Jinx Duo · Melofors Jinx · Nonverbal spells · Orbis Jinx · Patronus Charm · Red Sparks · Reductor Curse · Revulsion Jinx · Seize and Pull Charm · Shield Charm · Smokescreen Spell · Stunning Spell · Tickling Charm · Tongue-Tying Curse · Ventus Jinx · Verdimillious Charm · Verdimillious Duo Spell · Verdimillious Tria · Wand-Lighting Charm · Wand-Lighting Charm Duo · Cruciatus Curse · Imperius Curse · Killing Curse
Creatures studied at Hogwarts under D.A.D.A.
Acromantula · Banshee · Boggart · Cornish Pixie · Dementor · Erkling · Ghost · Ghoul · Grindylow · Gytrash · Hag · Hinkypunk · Iguana · Imp · Inferius · Kappa · Lethifold · Nocturnal beasts · Red Cap · Troll · Vampire · Vampire bat · Werewolf · Yeti · Zombie


Charms (class)
PS Wingardium Leviosa feather
Charmbook writers and developers
Delfina Crimp · Miranda Goshawk · Jarleth Hobart · Basil Horton · Randolph Keitch ·
Levina Monkstanley · Orabella Nuttley · Mnemone Radford · Scarpin · Elliot Smethwyck ·
Felix Summerbee · Fred Weasley · George Weasley
Professors Fortinbras · Filius Flitwick
Textbooks The Standard Book of Spells · Achievements in Charming · Quintessence: A Quest
Charms studied at Hogwarts
Banishing Charm (Depulso) · Cheering Charm · Cistem Aperio · Colour Change Charm (Colovaria) · Dancing Feet Spell (Tarantallegra) · Engorgement Charm (Engorgio) · Exploding Charm (Bombarda) · Fire-Making Spell (Incendio) · Freezing Charm (Immobulus) · Freezing Spell (Glacius) · Full Body-Bind Curse (Petrificus Totalus) · General Counter-Spell (Finite Incantatem) · Growth Charm · Hardening Charm (Duro) · Knockback Jinx (FlipendoLevitation Charm (Wingardium Leviosa) · Locomotion Charm (Locomotor) · Mending Charm (Reparo) · Memory Charm (Obliviate) · Nonverbal spell · Red Sparks (Vermillious) · Reductor Curse (Reducto) · Seize and Pull Charm (Carpe Retractum) · Severing Charm (Diffindo) · Shrinking Charm (Reducio) · Silencing Charm (Silencio) · Slowing Charm (Arresto Momentum) · Skurge Scouring Charm (Skurge) · Softening Charm (Spongify) · Spell for growing legs · Substantive Charm · Summoning Charm (Accio) · Tickling Charm (Rictusempra) · Unlocking Charm (Alohomora) · Vinegar into Wine · Wand-Extinguishing Charm (Nox) · Wand-Lighting Charm (Lumos) · Water-Making Spell (Aguamenti)