it's just like random swap BUT you have to put a cursed a lumi shadow acient ect also no shny casue that will ruin rates so that's all ask if I need to give more info

No, because it will ruin the economy. Someone will put in a 2k rated poke and end up with a 20k+.

Tbh, this will never be implemented.

It's not a very good idea. Like Amathyst said, someone could put in a Pokemon that only rates like 2k and wind up with one that rates 20k. IT will ruin the economy. Plus people might get mad about that, like if they put in a Pokemon that rates 20k and they wind up with one that rates 2k. So even if you changed it to something like you get a Pokemon that rates the same, it's still not going to be implemented.

then how about rate swap

IT's still pretty much the same thing. 0/10