Choking spell

Choking (Incantation unknown) is a type of spell that can be used to squeeze or otherwise momentarily constrict the neck of the target in order to deprieve them of the ability to breathe. Due to its exclusively harmful effect, it can be presumed this is Dark Magic. It can be presumably be used to murder, if the caster use it for a longer period of time, though it is not unreasonable to assume the person in question have some degree of control over the amount of pressure they put on the windpipe of their intended victim, meaning death is possibly but not a given.