You are the Werewolf.
Lycanthropic Regeneration: The first time the Mafia would kill you, you will survive and be notified of the attempt on your life. They will only know that it failed, such as if the Jailkeeper targeted either their chosen killer or you.
Scent Tracking: Choose a target, and see who they visit that night. This will track kills, unlike the Village Tracker.
Rip to Shreds: Target dies. If you target the Mafia Killer, this will roleblock the kill.
You may use both Scent Tracking and Rip to Shreds at the same time, of course.
You win if you are the last player standing.