Only males pass down egg moves, while the offspring is determined by the species of the mother. You'd end up with Slowbro, not Munchlax, and they wouldn't have any egg moves (unless the Snorlax knows some).
Smogon's dictionary explains what sweepers are, but as for EV training, it's kinda hard to simplify. There's tons of guides out there, you just need to find the right one.
Smogon's dictionary explains what sweepers are, but as for EV training, it's kinda hard to simplify. There's tons of guides out there, you just need to find the right one.