In the course of trying to edit every aspect of a pokemon for ROM hacking purposes, I've made some findings that may prove useful. Note that no tools exist to do this (yet), so I will just provide some insights on how each file works and those of you competent with a hex editor should be able to figure out the rest. The relevant file is (/data)/application/zukanlist/zkn_data/zukan_data.narc in a D/P ROM's internal filesystem. Unpack the narc (I used kiwi.ds's NDS Editor) and you'll get a folder