I've been toying around with some ideas for a duplicator, and I wanted to see what you thought rules wise. (Part of the reason I'm asking is I don't have 6th ed, so not sure if Duplication works the same or not. Let me know if I get the basics wrong.)
The concept is that duplicates summoned are potential existences, or the way the character could have existed with minor changes. It's not really enough for the altered duplicates modifier, just things like blond instead of brown hair, beard/no beard, this one has a tattoo, etc. (Probably a minor shapeshift vs. sight or something.)
Here's where it gets complicated, though. I want to be able to summon a perfectly healthy duplicate for when character gets diseased, poisoned, injured, etc. and then be able to step into that healthy form as the primary one. This goes against the very nature of combining duplicates, of course. So this could be an overly complex fx for aid or regeneration, or triggered aid onto the duplicate. Possibly something like dupes bought with extra body or life support only for calculating combined body?
Thought I would see what thoughts are here.