(With apologies to XKCD.)
Ahem. I've been playing around with the character generation rules in Evil Hat's Dresden Files RPG recently, testing some of the boundaries of who and what can be replicated. In doing so, I found that one particular power seemed to be absent. Naturally, I had to whip up a custom substitute:
Invisibility [-2 Refresh]
Description: You cannot be detected by sight. This ability is always in effect.
Skills Affected: Stealth
Effects: Your body is completely transparent and cannot be perceived by visual means. This does not extend to your clothes, undigested food, or other unabsorbed material, such as anything that might be splattered on you. +2 to Stealth against visual Perception rolls.
I drew from a couple different area of Your Story for this, especially the discussion of veils and the admittedly-similar Cloak of Shadows power (YS169). I bumped the Refresh cost up to reflect the more overwhelming potential, and I suspect you could bump it up even more by adding some variations - perhaps another point would be worth the ability to turn the invisibility on and off? I also tried a couple different ways of phrasing the restrictions on the increase to Stealth before settling on the above.Anyway, I haven't tested this one out yet, but I thought I'd throw it out there as a preview of something I've (slowly) been working on. Perhaps when I get to the reason why I needed it, I'll work out an example of it in play . . .