YSC Diploma trading

Silver + Crystal trade 1:
S: Cyndaquil
C: Sentret

Silver + Crystal trade 2 (Azela):
S: Totodile, Pidgey
C: Chikorita, Cyndaquil

Silver + Crystal trade 3 (Ecruteak):
S: Quilava, Mareep, Vulpix
C: Croconaw, Spinarak, Growlithe

Silver + Crystal trade 4 (after trading with yellow):
S: Kabuto, Bulbasaur, Squirtle, Dragonair, Meowth
C: Charmander, Hitmonlee, Pidgeot, Weezing, Sunflora

Crystal + Yellow trade 1:
C: Dragonair, Meowth
Y: Pikachu, Mankey

Crystal + Yellow trade 2:
C: Ekans, Arbok, Koffing, Weedle, Vulpix, Jynx
Y: Omanyte, Arcanine, Clefable, Wigglytuff, Jolteon, Hitmonchan

Crystal + Silver trade 5:
C: Omanyte, Arcanine, Clefable, Wigglytuff, Jolteon, Wartortle
S: Flaaffy, Ampharos, Girafarig, Lugia, Magmar, Charmeleon

Crystal + Silver trade 6:
C: Pupitar, Typhlosion, Ivysaur, Charizard, Togetic, Kabutops
S: Feraligatr, Blastoise, Bayleef, Forretress, Tyrogue, Omastar