>>96867544
Extremely low IQ protagonist has access to powers akin to Killer Queen: Bites the Dust (she kills people and time reverses but the victim stays dead) and uses it to systematically murder anyone in the way to her marrying a handsome prince (she hasn't really got any talents besides being pretty and murdering people so she has a lot to get through). Some of her victims deserve it but many are totally innocent and she's no reservations about bumping off children either.