Antonin Dolohov's curse

Antonin Dolohov's curse is an unknown curse used by Death Eater Antonin Dolohov during the The Battle of the Department of Mysteries during Harry's fifth year. The curse is cast using a "sudden slashing movement with [the] wand", causing a streak of purple flame to strike the target.

The effects of this curse are unknown and probably lethal. Dolohov used the curse twice during the Battle, first against Hermione Granger, who was knocked unconscious but survived. Dolohov might have killed Hermione if he had been able to say the incantation, but his voice was taken by Hermione's Silencing Charm earlier in the battle. Afterwards, she had to take no less than ten different potions daily for an extended period of time afterward, provided by the Hogwarts nurse Madam Pomfrey.

Dolohov used the curse again against Harry Potter later in the battle, but it was blunted by Harry's use of the Shield Charm. He describes it as a "streak across his face like a blunt knife" and the force of the curse knocks him off his feet.