well, how about if I make the creature inmortal with the intencion of no targeting it with fractal (of course, when copied it will lose the inmortality unless the copied creature had it). I lower the hp of them and lower the cost of the upgraded card (5 and 4 for the upgraded)?
The purpose is, as said above, to have a kind of paralel univers in a death way. The difference is that you have to kill the creature.
EDIT: even more funny, it could be burrowed with no unburrow possibility