>>445766342 playthroughs of emerald for eon duo if you don't have RS. XD for all version exclusives except for mantine and qwilfish. Colosseum for mantine and qwilfish and any stragglers. 2-3 playthroughs of FR or LG for starters, fossils, and anything else.
A completed Colosseum save can trade with RSE as soon as you get the pokedex, that includes national dex pokemon as well, use this to get the hoenn starters and to power thru emerald a second time with you first playthrough team. If you have both kanto games then you only need to play up to cinnabar for fossils before you trade over your starter and fossil to another kanto game. restart two more times for the other 2 starters then trade everything back and just power thru everything with your first incomplete playthrough team.
>What am I going to be dealing with?Burnout