Tragic Monster/Playing With

Basic Trope: A loved one becomes a monster, losing their humanity in the process. - You can click here to return to Tragic Monster...try not to dwell too much on what this page once was.
 * Straight: Alice and Bob spend the first act adventuring together, then Alice is transformed into a monster by the villain.
 * Exaggerated: Alice and Bob spend the entire story travelling, with Alice as a deutagonist. Suddenly, at the end she's warped into a monstrous Big Bad by a Diabolus Ex Machina.
 * Downplayed: Circumstances turn Alice against Bob and she becomes a Woobie Destroyer of Worlds.
 * Justified: Alice was infected with The Corruption
 * Inverted: Alice, a monster which has been plaguing Bob is transformed into a normal human.
 * Subverted: Alice's mind remains intact, and she simply becomes a Cute Monster Girl.
 * Double Subverted: While it hasn't outright changed her mind, her personality is being subtly altered. A bit more exposure to The Corruption and some Fantastic Racism is all it takes to make her Jump Off the Slippery Slope.
 * Parodied: Alice is sunburnt and becomes a bit snippy from the soreness. She and everyone else worries that she's slowly transforming into some sort of demon.
 * Zig Zagged: How "tragic" the transformation is portrayed as varies. Sometimes the mere mention of Alice is enough to driver Bob into a Heroic BSOD, other times they fight her off with no mention of who she once was.
 * Averted: Alice is infected with a monster virus, but receives the vaccine in time and the change never begins.
 * Enforced: The writers want a character to turn evil, however they wrote themselves into a corner by making the cast seem too close to turn against each other. They come up with the idea of having Alice transformed into a monster to explain it.
 * Lampshaded: "Why can't it just be a Mook? No one cares about them!"
 * Invoked: The Big Bad transforms Alice specifically to upset Bob.
 * Exploited: Alice realises that she's transforming into a mindless monster and positions herself near enemy lines to ensure she'll at least only harm the villains.
 * Defied: Alice, Bob and the rest of the cast make sure that everyone they care about (and themselves) are vaccinated, sanctified and otherwise protected from whatever the Big Bad might come up with.
 * Discussed: "I hear the the Overlord has the power to transform humans into monsters against their will!" "I hope he doesn't do it to anybody we care about!"
 * Conversed: "Is this the part where the villain's Mad Scientist straps Alice to his operating table and transforms her into a monster to distract the others while he makes his escape?"