Illegibilus: Makes handwriting impossible to read.
Immobulus: Immobilises and stops the actions of the target. It works both on living and inanimate things.
Impedimenta: Slows down or stops the target.
Imperio: Places the victim completely under the caster's control. The victim is put into a trance like state, and becomes very suggestible to the commands of caster. However, those who are strong willed may learn to resist it. One of the unforgivable curses, the use of this curse on another human results in capital punishment or life sentence in Azkaban.
(Imperturbable Charm): Creates an invisible magical barrier on an object, such as a door. This barrier bounces objects off of it, and muffles sound.
Impervius: Makes an object repel water.
Inanimatus Conjurus: It is a spell of unknown effect, most likely used to conjure an inanimate object.
Incarcerous: Ties up the target with ropes conjured from thin air.
Incendio: Produces fire.
Incendio Duo: A stronger version of Incendio.
Incendio Tria: An improvement over both Incendio and Incendio Duo.
Inflatus: Inflates the target, filling it with air,
Informous: Informous is a spell that is used to complete one's Folio Bruti. A page with a brief description (including weaknesses and strengths) of the charmed creature is added to the caster's Folio Bruti.
(Instant Scalping Hex): Instantly scalps all hair off of a target.
(Intruder Charm): Detects intruders and sounds an alarm.
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Harry Potter spells
SonstigesJust a book of Harry Potter spells if you're writing a Harry Potter book and need help with the spells. If the name of the spell has () around it than that means the spell itself doesn't have an actual name. Hope this book helps you fellow writers