Egg Group

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Egg Groups
Monster Human-Like
Water 1 Water 3
Bug Mineral
Flying Amorphous
Field Water 2
Fairy Ditto
Grass Dragon
No Eggs Discovered
Gender unknown

Egg Groups (Japanese: タマゴグループ Egg Group) are categories which determine which Pokémon are able to interbreed. The concept was introduced in Generation II, along with breeding. Similar to types, a Pokémon may belong to either one or two Egg Groups.

Overview

Egg Groups are based on biological traits of Pokémon species, generally allowing biologically similar species to breed. However, there are some oddities within Egg Groups: for example, the Field Group contains a particularly wide variety of Pokémon species, so that seemingly illogical pairings can be noted within it, such as Skitty and Wailord.

Egg Groups are generally preserved along evolutionary lines; however, baby Pokémon, Nidorina, Nidoqueen, and Shedinja are not in the same group as their evolutionary relatives: baby Pokémon, Nidorina and Nidoqueen are in the No Eggs Discovered Group and thus unable to breed, while Shedinja is in the Mineral Group (although it requires Ditto to breed due to being a gender-unknown Pokémon).

Egg Groups are not displayed in any core series game; however, they have been canonically mentioned in Pokémon Stadium 2 as a part of Earl Dervish's Pokémon Academy's extensive data banks, in Pokédex 3D, and in various strategy guides.

Breeding chains

Many Pokémon are included in two different Egg Groups and can form what are known as breeding chains. These link many unrelated Pokémon together, allowing moves that would not normally be accessible to certain Pokémon to be legal, like Heal Bell on Blissey.

TMs are also passed down through breeding from the father. Any move in the father's current moveset that can be learned via TM, Egg Move, or Move Tutor (in Crystal) will be passed down to the Pokémon hatching from the Egg.

Connections

The groups Ditto and No Eggs Discovered are unique in terms of connectivity, the first one allows breeding with any other group and the second one does not allow breeding with any Pokémon, not within this group nor with Ditto.

In the Generation II, when the Egg Groups were introduced, most of the remaining groups were connected and could allow crossbreeding and passing down moves to other groups with exception of Amorphous, Mineral and Human-Like. All three groups were connected starting from Generation III.

The number indicates the generation in which two Egg Groups were directly connected through a Pokémon.

× Monster Water 1 Bug Flying Field Fairy Grass Human-Like Water 3 Mineral Amorphous Water 2 Dragon
Dragon 2 2 8 3 2 8 8 8 2 2
Water 2 2 3 2
Amorphous 4 3 6 8 5 2
Mineral 8 5 8 3 5 2
Water 3 2 4 5 2
Human-Like 8 3 8 3 8 2
Grass 2 3 2 3 2 2
Fairy 2 7 2 2 2
Field 2 2 2 2
Flying 3 2
Bug 3 2
Water 1 2 2
Monster 2

Egg Groups

This is a list of Egg Groups by their index number in the games:

  1. Monster Group: Pokémon in this group are saurian/kaiju-like in appearance and nature.
  2. Water 1 Group: Pokémon in this group are amphibious in nature.
  3. Bug Group: Pokémon in this group are insectoid (bug-like) in appearance.
  4. Flying Group: Pokémon in this group are avian (birdlike) in appearance.
  5. Field Group: The largest group, Pokémon here are terrestrial in nature. In Stadium 2, this Egg Group was known as "Ground".
  6. Fairy Group: Pokémon in this group are petite and considered very cute.
  7. Grass Group: Pokémon in this group are plantlike in appearance. In Stadium 2, this Egg Group was known as "Plant".
  8. Human-Like Group: Pokémon in this group are fully bipedal. In Stadium 2, this Egg Group was known as "Humanshape".
  9. Water 3 Group: Pokémon in this group resemble aquatic invertebrates.
  10. Mineral Group: Pokémon in this group are inorganic in nature.
  11. Amorphous Group: Pokémon in this group are amorphous, having no definite form. In Stadium 2, this Egg Group was known as "Indeterminate".
  12. Water 2 Group: Pokémon in this group are piscine (fishlike) in appearance.
  13. Ditto Group: As the name implies, Ditto is the only Pokémon in this group, and is capable of breeding with all other Pokémon (regardless of gender) aside from those in the No Eggs Discovered and Ditto groups.
  14. Dragon Group: Pokémon in this group are draconic in appearance.
  15. No Eggs Discovered Group: Pokémon in this group are unable to breed. In Stadium 2, this Egg Group was known as "No eggs".

Changes

In Generation VIII, several Pokémon that were previously only in one Egg Group gained an additional Egg Group.

# Pokémon Generation VII Generation VIII
0280 Ralts Ralts Amorphous Human-Like Amorphous
0281 Kirlia Kirlia Amorphous Human-Like Amorphous
0282 Gardevoir Gardevoir Amorphous Human-Like Amorphous
0475 Gallade Gallade Amorphous Human-Like Amorphous
0328 Trapinch Trapinch Bug Bug Dragon
0329 Vibrava Vibrava Bug Bug Dragon
0330 Flygon Flygon Bug Bug Dragon
0701 Hawlucha Hawlucha Human-Like Flying Human-Like
0712 Bergmite Bergmite Monster Monster Mineral
0713 Avalugg Avalugg Monster Monster Mineral
0714 Noibat Noibat Flying Flying Dragon
0715 Noivern Noivern Flying Flying Dragon

In other languages

Language Title
Mandarin Chinese 蛋群 Dàn Qún
France Flag.png French Groupe d'Œuf*
Groupe OeufStad2
Germany Flag.png German Ei-Gruppe*
EigruppiergStad2
Italy Flag.png Italian Gruppo Uova*
Gruppo UovoStad2
South Korea Flag.png Korean 알그룹 Al Group
Spain Flag.png Spanish Grupo de Huevo*
Grupo HuevoStad2


Related articles

Project Games logo.png This game mechanic article is part of Project Games, a Bulbapedia project that aims to write comprehensive articles on the Pokémon games.