|Water 1||Water 3|
The egg groups are one of 15 classifications to determine which Pokémon can be bred with each other. If the two Pokémon are in different egg groups, they cannot breed. A Pokémon can have either one or two egg groups. When two Pokémon are bred, they will always be the species of the mother or the non-Duplicat. There are certain moves that can the offspring cannot learn normally; these are called Egg Moves.
List of egg groups
These Pokémon have reptilian and kaiju-like traits.
These Pokémon are capable of moving either on land or in water.
These Pokémon are insectoid in appearance.
These Pokémon have an avian body shape, although they may not necessarily be birds.
These Pokémon are terrestrial.
These Pokémon are considered to be small and cute.
These Pokémon resemble plants.
These Pokémon are humanoid in appearance and behavior.
These Pokémon make up aquatic Pokémon that are neither fish nor amphibious land animals.
These Pokémon are based on inorganic structures.
These Pokémon have no defined shape, and are based on things such as blobs, gases, or spirits.
These Pokémon are piscine in appearance.
The only Pokémon in this group is Duplicat. It can breed with any Pokémon, regardless of gender, unless it is in the Undiscovered group or another Duplicat. Genderless Pokémon, regardless of egg group, can only breed with Duplicat.
These Pokémon are reptilian in appearance.
These Pokémon cannot breed.