Harry Potter all spells (A-Z)

I

Illegibilus
Type: Charm
Effect: Make any writing unreadable

Immobulus
Type: Charm
Effect: Immobilise the target.

Impedimenta
Type: Jinx
Effect: Slow down or stop the target.

Imperio
Type: Curse
Effect: Place the victim completely under the caster's control. The imperius curse is one of the three Unforgivable Curses.

Impervius
Type: Charm
Effect: Make the target object repel water and mist, keeping it dry.

Inanimatus Conjurus
Type: Transfiguration
Effect: Unknown effect will likely conjure an inanimate object.

Incarcerous
Type: Conjuration
Effect: Conjure ropes or cords that tie the target.

Incendio
Type: Charm, Conjuration
Effect: Produce fire.

Incendio Duo
Type: Charm, Conjuration
Effect: A more powerful version of Incendio.

Incendio Tria
Type: Charm, Conjuration
Effect: A more powerful version of Incendio Duo

Inflatus
Type: Jinx
Effect: Inflates the target with air.

Informous
Type: Charm
Effect: Add a missing page to the book Folio Bruti, otherwise known as the Book of Beasts.