Trading

Trade 1:
C: anything
S: Cyndaquil

Trade 2:
C: Chikorita, Cyndaquil
S: Totodile, Jigglypuff

Trade 3:
C: Croconaw, Weezing, Ariados
S: Quilava, Mareep, Vulpix

Trade 4:
C: anything
Y: Squirtle, Charmander, Hitmonlee, Pidgeot

Trade 5:
S:
Y: Kabuto, Bulbasaur, Dragonair

Trade 6:
C: Squirtle, Charmander, Hitmonlee, Pidgeot, Spinarak, Growlithe
S: Kabuto, Bulbasaur, Flaaffy, Dragonair, Girafarig, Sunflora

Trade 7:
C: Kabuto, Dragonair, Farfetch'd
Y: Mankey, Kabuto, Pikachu

Trade 8:
C: Weedle, Graveler, Alakazam, Raichu, Jolteon, Koffing,
Y: Omanyte, Kadabra, Golem, Clefable, Flareon, Wigglytuff

Trade 9:
C: Omanyte, Ampharos, Typhlosion, Golem, Ivysaur, Flareon
S: Vaporeon, Charmeleon, Wartortle, Feraligatr, Lugia, Magmar

Trade 10:
C: Pupitar, Charizard, Blastoise, Kabutops, Wigglytuff, Slugma
S: Venusaur, Omastar, Bayleef, Tyrogue, Seel, Suicune

Trade 11:
C: Omastar, Machoke, Gengar, Vulpix, Magmar, Venusaur
Y: Dragonite, Haunter, Machamp, Porygon, Articuno, Zapdos

Trade 12:
S: Kabutops, Charizard, Blastoise, Pidgeot, Weezing, Jynx
Y: Jolteon, Gengar, Alakazam, Moltres, Ninetales, Parasect

Trade 13:
S: Hitmonlee, Meowth, Persain, Electabuzz, Arbok, Ekans
Y: Hitmonchan, Primeape, Dewgong, Lapras, Magneton, Mewtwo

Trade 14:
C: Umbreon, Espeon, Dragonite, Meganium, Hitmontop, Togetic
S: Tyranitar, Magcargo, Houndoom, Hitmonchan, Primeape, Dewgong

Trade 15:
C: Cleffa, Igglybuff, Magby, Elekid, Smoochum, Pichu
S: Moltres, Ninetales, Parasect, Blissey, Crobat, Misdreavus

Trade 16:
C: Teddiursa, Ursaring, Gligar, Mantine, Machamp Bellossom
S: Rapidash, Ho-oh, Remoraid, Magneton, Forretress, Horsea

Trade 17:
C: Mankey, Zapdos, Granbull, Piloswine, Articuno, Slowbro
S: Smeargle, Arcanine, Jumpluff, Aerodactyl, Natu, Lapras

Trade 18:
C: Porygon, Politoed, Onix, Scizor, Slowpoke, Kingdra, Rhydon, Clefairy, Xatu
S: Poliwhirl, Porygon2, Scyther, Steelix, Seadra, Slowking, Mewtwo, Nidoqueen, Nidoking

Trade 19: