Friday, September 04, 2015
Typically, these gave you additional points to buy better stats, abilities, or advantages during character creation. After that, it was up to the GM, largely, to keep track of your disadvantages and apply them during play.
This is, obviously, a clunky system, adding extra burdens on the GM to not only be certain to apply the disadvantages but to do so fairly. Certain disadvantages might not show up much at all because of the nature of the campaign (for instance, being unable to swim in a campaign set in deep space) while others might cripple a PC due to the themes and preferences of the GM (like arachnophobia in a campaign where the principle villains are drow).
More recently, people have been experimenting with flaws that reward the player when they penalize the character. You can see this kinda-sorta in Numenera with its GM intrusions mechanic.
I’m thinking of adding it to my D&D toolbox as follows: every time a flaw is invoked to cause serious disadvantage to the PC and most especially if it actually causes them to roll with disadvantage (roll two d20s and take the lower roll, as per 5e), the PC gets EXP equal to 2% of the difference between the amount needed for next level and the minimum they needed for their current level.
Now, I haven’t playtested this at all yet. I’m guessing that a flaw that comes up more than 5 times per hour (or 20 times per session) probably needs a serious looking-at. But this puts the burden of using it largely on the player, and incentivizes them to invoke it.
That said, I’m not sure I’d use it during character creation. Instead, I’d probably use it in conjunction with something like a Table of Death & Dismemberment (such as losing an eye causing disadvantage in to-hit with missile weapons) or mutation tables. I could also see using a system like that in conjunction with mental instabilities like those found in Wrath of Demons or Kingdom Death.