Every professor has his own qualities and so he has his own class in Hogwarts just fill this form out to get ur class but take to note that if a class is already taken you can't enrol for that class and you can only have one class not more.
Form that you must fill out
Defence Against the Dark arts
Care of Magical Creatures
Divination only for 3 years and up
TVD season 4 finnal was great