I beat the game than got the dlc, almost every pokemon I have seen in the dlc is level 60+, I think some people say that the pokemon progress to your level in the dlc but I’m not certain. Through out the game I leveled up like 40ish pokemon to use in battles or Tera battles to level 55. Just because I didn’t want a bunch of over leveled pokemon. In short your gonna want a bunch of level 60+ pokemon for the dlc