10 Deadliest Spells In The Harry Potter Universe

10. Serpensortia

What does it do? Shoots out a snake from the tip of the caster's wand. Indiana Jones's worst nightmare.

Nobody really likes Draco Malfoy - he's arrogant, selfish and a bit of an a-hole. And as if we needed more evidence of this, our feelings were reaffirmed considerably in Harry Potter and the Chamber of Secrets when he cast Serpensortia, and fired a live snake into a room full of inexperienced children.

Who does that?! Luckily for the vast amount of students present, the snake was quickly dispatched by Severus Snape and no harm befell anyone. But on another day, the outcome could've been much worse; Serpensortia is meant to be an offensive spell, and that means the animals it conjures are primed and ready to strike.

And while the snake would prove to be no trouble for wizards like Snape, it would almost certainly be deadly to a less-skilled opponent, or an unaware opponent. In an all-out battle Serpensortia wouldn't be the wisest choice, but for a stealthier, lower-key attack on an unsuspecting enemy, it's as good an option as any.