Another curse?!

...but it took forever to come up with the first one! Even then, it'd been a repeat of what somebody else had said. Bahhh. Sierra chewed on her bottom lip a little as she thought about another curse. Hmm... Oh! "There's the Oppugno Jinx," she said, raising her hand. "It has the word jinx in it, of course, but it's used as a curse, too. It causes a person or an object to attack the victim."

Like that one version where birds were used to attack the victim. Avis Oppugno, she thought.