Things that have to do with eggs.
“Egg Groups are categories in which Pokémon are placed to show which Pokémon are able to breed...List of Egg Groups
“The Monster Egg Group is one of the Egg Groups of Pokémon introduced in Generation II. This egg...Monster (egg group)
“The ditto egg group consists of one Pokémon. Characteristics The only Pokémon in this egg group...Ditto (egg group)