Harry Potter: 15 Spells Ranked From Weakest To Strongest

Not to be confused with the Full Body-Bind Curse, the Stunning Spell is one of the most commonly used charms in the entire Wizarding World franchise, allowing its caster to knock their opponent unconscious or stop moving objects.

A particularly handy spell to use in a duel, since it has the ability to end the fight quickly without too much prolonged violence, the Stupefy Spell can be countered with the Reviving Spell, but when utilised properly could be one of the most effective - and simple - spells on offer.

Harry and Ron are frequently seen using it in various combat situations, and in a world where most duelling spells can cause some serious damage or even death, it's a safe spell to use for those who don't want any blood on their hands.