>>57043150>breed a box or two worth of mons that are usually dead weight by the time you get your hands on them in a vanilla playthrough; ie fossils, babies, pseudos, mons that won't evolve without some tedious lategame event trigger...>hatch them and transfer them over to a new save and begin exclusively using them at the earliest convenience>feel free to add permadeath and item restrictions if you're still bored of the runI used to do Mystery Egg runs on the DS & 3DS games but it's too much of a pain in the ass to setup on Switch when every game now has a unique set of available mons, so this is my compromise.
It's my preferred way to replay a gen with a crappy encounter table.