Serial Killer is the weakest Neutral Killing right now, across all modes. Let's beef up their abilities without screwing with them entirely.
Serial Killer (Neutral Killing)
• Kill someone each night.
• If you are roleblocked you will attack your roleblockers and destroy their wills.
• You may choose to go Cautious and not kill roleblockers.
• If your target's defense is too strong to kill, you will learn their role.
Now, the Serial Killer will better be able to understand why their kill failed when it does, which should help them read the room and find potential allies, such as the Survivor, Witch, or other Serial Killers, town targets such as a healed player or crusader'd player, or potential threats, such as Godfather or *shudder* Arsonist.