Modern Emerald Egg Groups and Breeding: Full Compatibility List

Breeding in Modern Emerald is closer to modern games than to Emerald. The headline change: Pokémon inherit five IVs from their parents with no item needed — Destiny Knot behaviour, built in — and the Everstone now guarantees the nature on either parent, not just the mother.

What changed

• Five IVs inherited, no item required.
• Everstone works on either parent and locks the nature in.
• Fewer steps per daycare level, so eggs come faster.
• A free box space, taking storage to 450.
• Nature mints arrive after the fourth gym (or after the Champion if you did not enable them), so natures can be fixed after the fact.

Egg groups

There are 15 egg groups across the hack's 436 Pokémon:

• field — 113 Pokémon
• water1 — 58 Pokémon
• undiscovered — 56 Pokémon
• monster — 51 Pokémon
• bug — 40 Pokémon
• grass — 37 Pokémon
• fairy — 30 Pokémon
• flying — 27 Pokémon
• humanlike — 27 Pokémon
• mineral — 27 Pokémon
• amorphous — 25 Pokémon
• dragon — 24 Pokémon
• water3 — 19 Pokémon
• water2 — 17 Pokémon
• ditto — 1 Pokémon

Which Pokémon are in which group

field

Absol, Aipom, Ambipom, Ampharos, Annihilape, Arbok, Arcanine, Blaziken, Camerupt, Combusken, Cyndaquil, Delcatty, Delibird, Dewgong, Diglett, Donphan, Dudunsparc, Dugtrio, Dunsparce, Eevee, Ekans, Electrike, Espeon, Exploud, Farfetch'd, Farigiraf, Flaaffy, Flareon, Furret, Girafarig, Glaceon, Golduck, Granbull, Growlithe, Grumpig, Houndoom, Houndour, Jolteon, Kecleon, Leafeon…

water1

Azumarill, Blastoise, Clamperl, Corphish, Corsola, Crawdaunt, Croconaw, Delibird, Dewgong, Dragonair, Dragonite, Dratini, Feebas, Feraligatr, Golduck, Gorebyss, Horsea, Huntail, Kabuto, Kabutops, Kingdra, Lapras, Lombre, Lotad, Ludicolo, Mantine, Marill, Marshtomp, Masquerain, Milotic, Mudkip, Octillery, Omanyte, Omastar, Pelipper, Politoed, Poliwag, Poliwhirl, Poliwrath, Psyduck…

undiscovered

Arceus, Articuno, Azurill, Bonsly, Budew, Celebi, Chingling, Cleffa, Deoxys, Deoxys, Deoxys, Deoxys, Elekid, Entei, Groudon, Happiny, Ho-oh, Igglybuff, Jirachi, Kyogre, Latias, Latios, Lugia, Magby, Mantyke, Mew, Mewtwo, Mime Jr., Moltres, Munchlax, Nidoqueen, Nidorina, Pichu, Raikou, Rayquaza, Regice, Regidrago, Regieleki, Regigigas, Regirock…

monster

Aggron, Ampharos, Aron, Bayleef, Blastoise, Bulbasaur, Charizard, Charmander, Charmeleon, Chikorita, Croconaw, Cubone, Exploud, Feraligatr, Flaaffy, Grovyle, Ivysaur, Kangaskhan, Lairon, Lapras, Larvitar, Lickilicky, Lickitung, Loudred, Mareep, Marowak, Marshtomp, Meganium, Mudkip, Nidoking, Nidoran♀, Nidoran♂, Nidorino, Pupitar, Rhydon, Rhyhorn, Rhyperior, Sceptile, Slowbro, Slowking…

bug

Ariados, Beautifly, Beedrill, Butterfree, Cascoon, Caterpie, Dustox, Flygon, Forretress, Gligar, Gliscor, Heracross, Illumise, Kakuna, Kleavor, Ledian, Ledyba, Masquerain, Metapod, Nincada, Ninjask, Paras, Parasect, Pineco, Pinsir, Scizor, Scyther, Shuckle, Silcoon, Spinarak, Surskit, Trapinch, Venomoth, Venonat, Vibrava, Volbeat, Weedle, Wurmple, Yanma, Yanmega

grass

Bayleef, Bellossom, Bellsprout, Breloom, Bulbasaur, Cacnea, Cacturne, Chikorita, Exeggcute, Exeggutor, Gloom, Hoppip, Ivysaur, Jumpluff, Lombre, Lotad, Ludicolo, Meganium, Nuzleaf, Oddish, Paras, Parasect, Roselia, Roserade, Seedot, Shiftry, Shroomish, Skiploom, Sunflora, Sunkern, Tangela, Tangrowth, Tropius, Venusaur, Victreebel, Vileplume, Weepinbell

fairy

Azumarill, Blissey, Breloom, Castform, Chansey, Clefable, Clefairy, Delcatty, Froslass, Glalie, Granbull, Hoppip, Jigglypuff, Jumpluff, Marill, Mawile, Minun, Pikachu, Plusle, Raichu, Roselia, Roserade, Shroomish, Skiploom, Skitty, Snorunt, Snubbull, Togekiss, Togetic, Wigglytuff

flying

Aerodactyl, Altaria, Crobat, Dodrio, Doduo, Farfetch'd, Fearow, Golbat, Honchkrow, Hoothoot, Murkrow, Natu, Noctowl, Pelipper, Pidgeot, Pidgeotto, Pidgey, Skarmory, Spearow, Swablu, Swellow, Taillow, Togekiss, Togetic, Wingull, Xatu, Zubat

humanlike

Abra, Alakazam, Cacnea, Cacturne, Drowzee, Electabuzz, Electivire, Hariyama, Hitmonchan, Hitmonlee, Hitmontop, Hypno, Illumise, Jynx, Kadabra, Machamp, Machoke, Machop, Magmar, Magmortar, Makuhita, Medicham, Meditite, Mr. Mime, Sableye, Spinda, Volbeat

mineral

Baltoy, Beldum, Claydol, Electrode, Froslass, Geodude, Glalie, Golem, Graveler, Lunatone, Magnemite, Magneton, Magnezone, Metagross, Metang, Nosepass, Onix, Porygon, Porygon Z, Porygon2, Probopass, Shedinja, Snorunt, Solrock, Steelix, Sudowoodo, Voltorb

amorphous

Banette, Castform, Chimecho, Dusclops, Dusknoir, Duskull, Gallade, Gardevoir, Gastly, Gengar, Grimer, Gulpin, Haunter, Kirlia, Koffing, Magcargo, Misdreavus, Mismagius, Muk, Ralts, Shuppet, Slugma, Swalot, Weezing, Wobbuffet

dragon

Altaria, Arbok, Bagon, Charizard, Charmander, Charmeleon, Dragonair, Dragonite, Dratini, Ekans, Feebas, Grovyle, Gyarados, Horsea, Kingdra, Magikarp, Milotic, Salamence, Sceptile, Seadra, Seviper, Shelgon, Swablu, Treecko

water3

Anorith, Armaldo, Cloyster, Corphish, Corsola, Cradily, Crawdaunt, Kabuto, Kabutops, Kingler, Krabby, Lileep, Omanyte, Omastar, Shellder, Starmie, Staryu, Tentacool, Tentacruel

water2

Barboach, Carvanha, Chinchou, Goldeen, Gyarados, Lanturn, Luvdisc, Magikarp, Octillery, Qwilfish, Relicanth, Remoraid, Seaking, Sharpedo, Wailmer, Wailord, Whiscash

ditto

Ditto

The fastest route to a perfect Pokémon

1. Catch a Ditto — it is in the Desert Underpass and breeds with anything in a normal egg group. (The Undiscovered group, which is the legendaries and a few babies, cannot breed at all.)
2. Chain breed the IVs you want onto a parent, using the five-IV inheritance.
3. Lock the nature with an Everstone on the parent that already has it.
4. Level and EV train — see the EV yields guide for where to do that.

Egg group and gender ratio data read from the extracted game data (breeding-compatibility.json); breeding changes from the official Modern Emerald documentation.