I need custom dice why?
I'm apparently an incompetent GM who can't tell a story, so I get to toss all my real dice and use special dice that tell my story for me? Dice are a resolution mechanic, not a storytelling mechanic.
Neither I nor any of my players are going to shell out cash for dice that are completely unusable for anything other than one game.
If the final game requires a set of utterly useless dice, as much as I hate to say it, it may be a no go from the beginning.
This is a very sad, sad turn of events.
The more I think about how this system will function with custom dice, the worse and worse the outlook is becoming.