Killer Idea: The Shining Ghosts
You start the match as the caretaker, Jack Torrence. You switch to other ghosts via a weapon wheel-like hub.
Ghost 1: the twins- they phase blink similar to nurse however there is a much shorter charge and no Cooldown and no transition animation viewable to survivors. The drawback is they do not attack in any way they shift between dead and undead, giggle and scream.
Ghost 2: Mad Jack torrence- everytime you switch to Jack there is a short Cooldown and he says an iconic line. He wields an axe that can one hit down but he has the movement speed of nurse.
Ghost 3: the bartender- all matches spawn in a bar to tend. As the bar tender you are invisible and you can interact with generators from a distance. If you start your interaction to the generator while survivors are on them they will be stuck doing the gen but they will not be progressing. The survivors screens become wobbly as if they were getting drunk skill checks are very tough and this effect persists until they interact with the bar that spawned on the map. The bartender can tend to this bar where if a survivors interacts while you're there you will appear to them and smash a bottle over their head injuring them. Their drunkenness will go away upon injury.
Ghost 4: the moldy lady- the moldy lady is a normal walk speed killer that charges at the survivor and grabs them. If the survivor is locked in a grab for 7 seconds they become permanently broken. Other survivors can interrupt her grabs. She has a wicked laugh and when she grabs she rubs the survivors head gently.
Ghost 5: the blood wave- if exit gate is powered you can teleport to it activating a blood wave that pushes survivors out. Blood remains on the floor of the exit gate that reduces survivor run speed.