"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

in the film

In the film version of The Order of the Phoenix, only Ginny casts the Reductor Curse to smash the shelves in the Hall of Prophecy, instead of every D.A. member present.

Appearances

Notes and references


Defence Against the Dark Arts (D.A.D.A.)
Subjectsdada.JPG
D.A.D.A. at Hogwarts
Classroom 3C · Classroom 3C backrooms · Temporary Classroom · Hogwarts Turris Magnus · Teacher's Office · Storeroom · Staircase · Storage room · Lesson Cup · Race Cup · Duelling Club · Dumbledore's Army
Professors
Arsenius Jigger · Albus Dumbledore · Galatea Merrythought · 1984–1985 professor · 1985–1986 professor · 1986–1987 professor · 1987–1988 professor · Patricia Rakepick · 1989–1990 professor · Quirinus Quirrell · Gilderoy Lockhart · Remus Lupin · Bartemius Crouch Junior (as Alastor Moody) · Dolores Umbridge · Severus Snape · Amycus Carrow (as Dark Arts teacher) · Unidentified professor · Brindlemore
Textbooks
The Dark Forces: A Guide to Self-Protection · Advanced Defence Against the Dark Arts · 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 · Defence Against the Dark Arts
Spells studied at Hogwarts under D.A.D.A.
Aqua Eructo · Boggart-Banishing Spell (Riddikulus) · Cave inimicum · Counter-curses · Counter-jinxes · Cruciatus Curse (Crucio) · Curse of the Bogies (Mucus ad Nasuem) · Cursed barrier spell · Densaugeo · Deprimo · Disarming Charm (Expelliarmus) · Ear-Shrivelling Curse · Everte Statum · Freezing Spell (Glacius) · Full Body-Bind Curse (Petrificus Totalus) · Fumos Duo · Green Sparks · Hex-Breaker· Hex-deflection · Hex Zapper · Homorphus Charm · Human-presence-revealing Spell (Homenium Revelio) · Impediment Jinx (Impedimenta) · Imperius Curse (Imperio) · Imperturbable Charm · Killing Curse (Avada Kedavra) · Knockback Jinx (Flipendo) · Lacarnum Inflamari · Langlock · Limbo Mist anticharm · Nonverbal spells · Patronus Charm (Expecto Patronus) · Protective enchantments · Red Sparks (Vermillious) · Reductor Curse (Reducto) · Salvio hexia · Sea Urchin Jinx · Seize and pull charm (Carpe Rectratum) · Shield Charm (Protego) · Smokescreen Spell (Fumos) · Snake-Vanishing Spell (Vipera Evanesca) · Softening Charm (Spongify) · Stretching Jinx · Tickling Charm (Rictusempra) · Tongue-Tying Curse (Mimble Wimble) · Trip Jinx · Twitchy-Ears Hex · Verdimillious Charm (Verdimillous) · Verdimillious Duo Spell (Verdimillous) · Verdimillious Tria · Vermillious Duo · Vermillious Tria · Wand-Lighting Charm (Lumos)
Creatures studied at Hogwarts under D.A.D.A.
Banshee · Boggart · Chameleon Ghoul · Charmed skeleton · Cornish Pixie · Dementor · Erkling · Flesh-Eating Slug · Ghost · Ghoul · Grindylow · Gytrash · Hag · Hinkypunk · Iguana · Imp · Inferius · Kappa · Nocturnal beasts · Red Cap · Snake · Troll · Vampire · Vampire bat · Werewolf · Yeti · Zombie


Charms (class)
PS Wingardium Leviosa feather.gif
Charm-book writers and developers
Blagdon Blay · Daisy Pennifold · Delfina Crimp · Miranda Goshawk · Jarleth Hobart · Basil Horton · Helixa Hyslop · Syna Hyslop · Randolph Keitch · Levina Monkstanley · Orabella Nuttley · Mnemone Radford · Scarpin · Elliot Smethwyck · Felix Summerbee · Violeta Stitch
Professors Fortinbras · Filius Flitwick · Unidentified male Charms Professor
Textbooks Achievements in Charming · Extreme Incantations · Quintessence: A Quest · The Standard Book of Spells
Charms studied at Hogwarts
Ascendio · Banishing Charm (Depulso) · Blackboard Writing Spell · Blue sparks · Box Blasting Charm (Cistem Aperio) · Bubble-Head Charm · Cheering Charm · Cleaning Charm · Colour Change Charm (Colovaria) · Confundus Charm (Confundo) · Counter-charm for hiccoughs · Dancing Feet Spell (Tarantallegra) · Descendo · Disarming Charm (Expelliarmus) · Disillusionment Charm · Drought Charm · Entrancing Enchantments (Theortically) · Eradication Spell (Deletrius) · Engorgement Charm (Engorgio) · Extinguishing Spell · Exploding Charm (Bombarda) · Fire-Making Spell (Incendio) · Freezing Charm (Immobulus) · Freezing Spell (Glacius) · Full Body-Bind Curse (Petrificus Totalus) · General Counter-Spell (Finite Incantatem) · Gouging Spell (Defodio) · Growth Charm · Ice Jinx · Knitting Charm · Knockback Jinx (Flipendo) · Leg-Locker Curse (Locomotor Mortis) · Levitation Charm (Wingardium Leviosa) · Locking Spell (Colloportus) · Locomotion Charm (Locomotor) · Mending Charm (Reparo) · Memory Charm (Obliviate) · Muffliato Charm (Muffliato) · Nonverbal spells · Pack Charm (Pack) · Red Sparks (Vermillious) · Reductor Curse (Reducto) · Scouring Charm (Scourgify) · 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) · Lumos Maxima · Water-Making Spell (Aguamenti)
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