Picks one player every night.
Cannot pick self.
Removes any afflictions and ailments from that player.
Grim Reaper is not an affliction, it is that player's role, and so it cannot be cured.
Exorcist is not informed if their target is cured or not.
Host does not reveal when Exorcist is active.
Appears home if visited by the Drunk unless using ability.
If blinded by the Nova it will be made random who they exorcise.
Infected by the Plague.
Tainted by the Lich.