I remember this story from something like 4-6 years back on the old forums, maybe older. Don't remember the author, except possible details. I remember 90% of the plot in detail, this smart teenage guy helps a homeless guy in the park, and in return is offered a 'card', which transitions between an image of a bear and a gorilla, which causes him to gradually grow bigger and bigger, with reality shifting along the way. Eventually, his two friends get drawn into the mess, getting their own cards that 'improve' their life in different ways. (the female friend gets a 'beauty' card, don't remember what the guy friend gets.) Eventually the whole thing is revealed to be a plot by the 'homeless' guy, who is gradually stealing their souls or somesuch. I tried looking for it everywhere, and I can't find it. Might have been deleted when the author vanished (I recall a claim he might've died, his stories pulled down by his S/O, though there were conflicting reports, IIRC, with some saying he was just cleaning up his internet presence in an attempt to go professional or something). Might even be conflating one author with another, not sure. I'd really love to find the story, I thought it was awesome. If I can't get a hold of it, I might write something along that direction, though admittedly favoring my own preferences, just because I like the mechanism.