>>12238869I'm currently working on them and the way I have it is that I figured out all my teams, and tried to overlap them a bunch so there would be less mons to train. Then I just go through area 6 or 7 of the white tree hollow with one mon I need to train holding an exp share until I hit about 70 and switch in the next one. Occasionally I'll use the join avenue shop to level up some pokemon when I'm at the end (and their moveset is already ready) since you'll be getting money to spend anyway.
Ice might be the next easiest, but marshall can give you some trouble (in all honesty, he's given me trouble on all but psychic out of the ones I've done). You do have to put some thought into the teams you pick, but once you know who you're gonna use it's just grinding.
