Power Personality Flaw
The personality associated with a given power or skill is detrimental to using it.
Needs More Examples As noted on Personality Powers, giving a character a personality which fits with their abilities (or one opposite) is good shorthand. However this trope covers cases where having a personality which matches the power (or developing one) is risky and avoided. This risk might be because;
- The personality itself might be harmful on its own if it goes too far (there's a fine line between being a Hot Blooded fire mage and an Axe Crazy pyromaniac or a Loveable Rogue Playful Hacker and an overly anti-establishment example of The Cracker).
- The personality would be detrimental to using the ability (for example; even if you're the greatest thief in the world, compulsively picking the judge's pocket would be a bad career move and a speedster might try to stay calm and restrained to avoid accidents).
- It simply isn't healthy to only define yourself by the power or skill in question. Either because of the risk of becoming "addicted" to the power or just the risk of becoming Married To The Job for more mundane skills (for example a Stealth Expert might try to be talkative and sociable, off the clock at least, in order to avoid becoming a silent, remorseless killer).
- Or any combination of the above.
- In Avatar The Last Airbender, Firebenders are (mostly) calm and collected to avoid losing control. Jeong Jeong (who explains this) in particular considers firebending a form of Blessed With Suck. Aang demonstrates this when he tries firebending and ends up losing control of the flames he creates. Benders of other elements avert this by working most efficiently when they have the expected Personality Power.
- Mace Windu in Star Wars: Revenge Of The Sith has a very aggressive homebrewed lightsaber dueling technique called Vapaad which skirts very close to The Dark Side. He needs to have a great deal of discipline and concentration to avoid succumbing to it (as opposed to the aggression you would expect a user of such a style to have).
- In Buffy The Vampire Slayer it's implied that Slayers tend to develop boodthirsty personalities from all the fighting they're expected to do. Faith serves as an example of why this can be a bad thing.
- Some continuities of The Incredible Hulk imply that despite his Super Strength powers (which are powered by his rage), the Hulk also makes use of Banner's intelligence on some level to use his strength more efficiently (indeed, many early comics, where the Hulk was a sociopath rather than stupid, had characters comment on how quickly and quietly he was able to move despite his size). As opposed to being The Berserker as you'd expect.
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