The Casting Method of the Impediment Jinx

As Moody dodged the explosions, Wizet also retreated rapidly. At the spot where he had been standing, the air began exploding as well, producing one hollow boom after another.

Both figures vanished again at the same time. The trees damaged by the explosions turned back into books and continued burning in the flames of the Fire-Making Spell, sending wisps of black smoke curling upward.

As the little forest fell silent once more, the students finally had a chance to ask questions.

"Professor McGonagall, did Professor Moody also... incorporate some other magic into the Impediment Jinx?" They connected the two explosions. "Can the Impediment Jinx be cast that way too?"

"Of course it can!" McGonagall kept an eye on the movements of the two within the little forest as she began answering the students' questions.

"They both used the Impediment Jinx. When this spell is cast on an opponent, it can briefly restrict their movements, correct?"

"That's right!" Anthony Goldstein replied from nearby. "Professor Moody also said that you don't have to cast the Impediment Jinx directly on an enemy. You can create obstacles around them instead, hindering their movements."

"At this point, doesn't it start to resemble Transfiguration somewhat?" McGonagall asked. "Transforming a spell into an invisible obstacle, then using it to restrict your opponent's movements."

"The reason this can be done is that the Impediment Jinx has been refined by countless people. Its original effect was very simple: to put 'shackles on the enemy's feet.'"

"The key lies in 'shackles.' Thus, its original form was a Transfiguration spell. After being improved, however, the Impediment Jinx not only gained its own dedicated incantation, but also changed from something tangible into something invisible."

"The benefit is that the Impediment Jinx became more covert and much easier to cast. But if we