Standard/regional:

ditto: meltan: caterpie -> metapod -> butterfree: tynamo (regional) -> eelektrik (regional) -> eelektross (regional): vanillite -> vanillish -> vanilluxe: shellos_west_sea (regional) -> gastrodon_west_sea (regional): shellos_east_sea (regional) -> gastrodon_east_sea (regional): goomy -> sligoo -> hisui_sliggoo (regional) -> goodra -> hisui_goodra (regional): gastly -> haunter -> gengar: solosis -> duosion -> reuniclus:

Add picks:

Uncommon: grimer -> muk: alolan_grimer (regional) -> alolan_muk (regional): koffing -> weezing: omanyte -> omastar: dewpider -> araquanid: sandygast -> palossand: clobbopus -> grapploct:

Rare: slugma -> magcargo: wynaut -> wobbuffet: drifloon -> drifblim: munna -> musharna: silicobra -> sandaconda:

Epic: misdreavus -> mismagius: gulpin -> swalot:

Hatches: scatterbug:

Uniques:

castform -> castform_sun -> castform_rain -> castform_hail:

castform -> castform_sun -> castform_rain -> castform_hail:

castform -> castform_sun -> castform_rain -> castform_hail:

castform -> castform_sun -> castform_rain -> castform_hail:

spiritomb:

cryogonal:

pyukumuku:

mimikyu -> mimikyu_busted:

mimikyu -> mimikyu_busted:

milcery -> alcremie_vanilla -> alcremie_ruby -> alcremie_matcha -> alcremie_mint -> alcremie_lemon -> alcremie_salted -> alcremie_ruby_swirl -> alcremie_caramel_swirl -> alcremie_rainbow_swirl:

pincurchin:

Legendaries:

mew:

deoxys:

deoxys_defense:

deoxys_attack:

deoxys_speed:

manaphy:

darkrai:

nihilego:

melmetal:

regieleki: