Harry Potter: 15 Spells Ranked From Weakest To Strongest

15. The Wand-Lighting Charm (Lumos)

Not all Wizarding World spells are used in combat; many are just helpful conveniences that help a witch or wizard through their day-to-day.

And in Harry Potter's world - where everything seems to be dank and dark - few spells are as universally welcome as the Lumos charm, a nifty trick that causes your wand to act as a flashlight.

Used throughout the series by the main characters in various life-or-death situations, Lumos is best used in the movies to heighten the tension of what's playing out on screen. Whether walking through the Ministry of Magic in Order of the Phoenix or trying to study like in The Prisoner of Azkaban, Lumos always makes it look as though something's ready to jump out the shadows.

As useful as it is though - both as a spell and a tension-building technique - it's still just a light, and isn't quite as powerful as some of the other spells in the Wizarding World's arsenal.