Hey, about your plan. If you protoyped yourself pre-entry, then what would happen with the prototyping rings? The Black Queen would get more herself? And the king more queenlike?
I'm not sure. But I don't intend to prototype pre-entry, regardless; giving both Kings a doomsday button would be a spectacular way to put us right back at square one.
The plan is more like this:
1) Die with my finger on the dial of my egg-timer.
2) Return to just before one of the players Enters.
3) They find the corpse of a beloved guardian, and prototype it so that she'll live on.