Professor Potter punched Christabelle in the head, watching as she crashed to the ground?
((
Jk i swear, ignore that bit. Just thought i'd ask... is that god mode allowed? : P hahaha))
Professor Potter chuckled and watched as the spell had its effect on Christabelle before turning to Arthur. "Not just yet Mr Poe, you need to know how to remove the effect first. And in any case, once Ms Whittle has had the spell reversed she gets to be the first to try it on someone." he said, smiling at a point about 20cms from Christabelle, seeing as he had forgotten her location. "Oh, and 10 Points to Ravenclaw," he added, smiling even further away from her.
"Now," he began, "To remove the effects of this charm we must use another spell, that spell being Finite Incantatum, one you may, or may not have learnt before. The trick is to learn in it a manner that you can use it on certain places, without it affecting others. For example if there was an invisible suit of armour over there," he said, pointing at a blank wall, "the idea would be to be able to make it appear using finite incantatum, while at the same time not making Ms Whittle appear, which is made difficult by the fact that Finite Incantatum is meant to remove all spell traces in a room." He told the class. "The way we do this, is to concentrate only on the effect you're trying to remove." He told the class, pausing to let the catch up with their note-taking