If I get your notes right, the targetted creatures does count as a possible result of this? So, having a Photon and a Dragon, targetting Photon -> 50% Photon, 50% Dragon?
Where would you use it? It costs half of the PU/TU, but it's more risky and you need an extra card (cheap creature) as bait. A usable alternative is having this effect as an ability of a Permanent. This copy on a stick sounds much more useful,