Takes One to Kill One: Difference between revisions

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This is oftentimes used as a [[Justified Trope|justification]] to why the protagonists, who oftentimes either are this kind of monster, can turn into one, or have one under their control, can seriously wail on the [[Monster of the Week]], and yet the [[Five Rounds Rapid|military forces and]] [[Police Are Useless|police are still useless]]. If the monster is unaffiliated with either side, it can lead to [[Always a Bigger Fish]]. If the protagonists are forced to become this type of monster to win, expect a [[My God, What Have I Done?]] moment afterwards.

A subtrope of [[Mutual Disadvantage]]. An opposite of [[Tactical Rock-Paper-Scissors]] where each type of combatant has some other capable of [[Curb Stomp Battle|curb stomping]] it.

Compare [[Beat Them At Their Own Game]], [[Hoist by His Own Petard]] and [[Summon Bigger Fish]]. Contrast [[Like Cannot Cut Like]].

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== Other ==

* A lot of [[Our Werewolves Are Different|werewolf]] and [[Our Vampires Are Different|vampire]] fiction states that one of the few things werewolves and vampires are vulnerable to ([[Achilles Heel|except, you know, silver, stakes, and such]]) are bites and scratches inflicted by another werewolf or vampire.

* A lot of [[Our Werewolves Are Different|werewolf]] and [[Our Vampires Are Different|vampire]] fiction states that one of the few things werewolves and vampires are vulnerable to ([[Achilles' Heel|except, you know, silver, stakes, and such]]) are bites and scratches inflicted by another werewolf or vampire.

** [[Sociopathic Hero|Alucard]] and [[Dhampyr|Blade]] are both vampires who hunt vampires.

** [[Van Helsing]]: The only thing that can kill Dracula is a werewolf.