When I was writing this I got an automated suggestion that it was similar to The Trapper thread from last June, but this idea is slightly different so I’ll post it anyway.
The Bomber (Neutral Killer)
Nighttime abilities:
Tripwire (infinite uses): Set a tripwire on a player. If they use any abilities tonight, they will die. Unless you’ve targeted yourself, in which case anybody who uses an ability on you will die (You can only target yourself a limited number of times).
Daytime abilities:
Timebomb (limited uses): Set a timebomb on a player, notifying them. They will die after 2 nights, and kill anybody they are visiting along with anybody visiting them. If anybody visits them the first night though, the bomb will be defused.