When you transfer a Pokemon from, say, Emerald to the Pal Park... does it disappear from your Emerald game? And do the Pokes transferred keep the same IVs? I have a Metang with perfect HP and Attack IVs, and I'd like to keep it that way, even IF it appears at level 5 in the Pal Park.
And while I doubt that it would disappear from your GBA cart, if it didn't that would mean you could have unlimited Deoxys that are exactly the same, for example; kind of like a makeshift cloning method. Anyone know for sure?