README.md

I don't know if this would be useful/interesting to anyone else, but I made a list tracking the base stat adjustments that happend with the split of Special into Special Attack and Special Defense in Gen II, and it's even sorted so that the most dramatic losers and winners are at either end.

This is not tracking which Pokémon's Special turned into Special Attack and which one's turned into Special Defense (or both). Such lists are easy to find.

This list tracks the nerfs or buffs to a Pokémon's base stats compared to what they would be if the Special stat had been inherited for both Special Attack and Special Defense.

For example, if you think of Gen I Chansey under the modern stat system, it would have base 105 Special Attack and base 105 Special Defense, meaning that the transition to Gen II nerfed its Special Attack by 70 points.

summary.py

{-70: [('Chansey', 'Special Attack')],
 -65: [('Gastly', 'Special Defense')],
 -64: [('Mewtwo', 'Special Defense')],
 -60: [('Haunter', 'Special Defense'),
       ('Exeggutor', 'Special Defense'),
       ('Tangela', 'Special Defense')],
 -55: [('Gengar', 'Special Defense')],
 -50: [('Abra', 'Special Defense'),
       ('Kadabra', 'Special Defense'),
       ('Alakazam', 'Special Defense'),
       ('Tentacool', 'Special Attack'),
       ('Magneton', 'Special Defense'),
       ('Seadra', 'Special Defense')],
 -47: [('Drowzee', 'Special Attack')],
 -45: [('Horsea', 'Special Defense'), ('Omastar', 'Special Defense')],
 -42: [('Hypno', 'Special Attack')],
 -40: [('Bellsprout', 'Special Defense'),
       ('Weepinbell', 'Special Defense'),
       ('Victreebel', 'Special Defense'),
       ('Tentacruel', 'Special Attack'),
       ('Magnemite', 'Special Defense'),
       ('Cloyster', 'Special Defense'),
       ('Gyarados', 'Special Attack'),
       ('Moltres', 'Special Defense')],
 -35: [('Omanyte', 'Special Defense'), ('Zapdos', 'Special Defense')],
 -30: [('Tauros', 'Special Attack'), ('Articuno', 'Special Attack')],
 -25: [('Seel', 'Special Attack'), ('Dewgong', 'Special Attack')],
 -20: [('Parasect', 'Special Attack'),
       ('Dugtrio', 'Special Attack'),
       ('Shellder', 'Special Defense'),
       ('Eevee', 'Special Attack')],
 -19: [('Ninetales', 'Special Attack')],
 -15: [('Vulpix', 'Special Attack'),
       ('Venomoth', 'Special Defense'),
       ('Exeggcute', 'Special Defense'),
       ('Koffing', 'Special Defense'),
       ('Weezing', 'Special Defense'),
       ('Goldeen', 'Special Attack'),
       ('Seaking', 'Special Attack'),
       ('Staryu', 'Special Defense'),
       ('Starmie', 'Special Defense'),
       ('Vaporeon', 'Special Defense'),
       ('Jolteon', 'Special Defense'),
       ('Flareon', 'Special Attack')],
 -10: [('Pikachu', 'Special Defense'),
       ('Raichu', 'Special Defense'),
       ('Sandshrew', 'Special Attack'),
       ('Sandslash', 'Special Attack'),
       ('Zubat', 'Special Attack'),
       ('Golbat', 'Special Attack'),
       ('Oddish', 'Special Defense'),
       ('Gloom', 'Special Defense'),
       ('Vileplume', 'Special Defense'),
       ('Paras', 'Special Attack'),
       ('Diglett', 'Special Attack'),
       ('Lapras', 'Special Attack')],
 -5: [('Magikarp', 'Special Attack'), ('Kabutops', 'Special Attack')],
 0: [('Bulbasaur', 'N/A'),
     ('Ivysaur', 'N/A'),
     ('Venusaur', 'N/A'),
     ('Caterpie', 'N/A'),
     ('Metapod', 'N/A'),
     ('Butterfree', 'N/A'),
     ('Weedle', 'N/A'),
     ('Kakuna', 'N/A'),
     ('Pidgey', 'N/A'),
     ('Pidgeotto', 'N/A'),
     ('Pidgeot', 'N/A'),
     ('Spearow', 'N/A'),
     ('Fearow', 'N/A'),
     ('Nidoran♀', 'N/A'),
     ('Nidorina', 'N/A'),
     ('Nidoran♂', 'N/A'),
     ('Nidorino', 'N/A'),
     ('Meowth', 'N/A'),
     ('Persian', 'N/A'),
     ('Poliwag', 'N/A'),
     ('Poliwhirl', 'N/A'),
     ('Machop', 'N/A'),
     ('Geodude', 'N/A'),
     ('Graveler', 'N/A'),
     ('Ponyta', 'N/A'),
     ('Rapidash', 'N/A'),
     ('Slowpoke', 'N/A'),
     ('Doduo', 'N/A'),
     ('Dodrio', 'N/A'),
     ('Krabby', 'N/A'),
     ('Kingler', 'N/A'),
     ('Voltorb', 'N/A'),
     ('Electrode', 'N/A'),
     ('Rhyhorn', 'N/A'),
     ('Rhydon', 'N/A'),
     ('Ditto', 'N/A'),
     ('Dratini', 'N/A'),
     ('Dragonair', 'N/A'),
     ('Dragonite', 'N/A'),
     ('Mew', 'N/A')],
 4: [("Farfetch'd", 'Special Defense')],
 5: [('Clefairy', 'Special Defense'), ('Clefable', 'Special Defense')],
 10: [('Charmander', 'Special Attack'),
      ('Rattata', 'Special Defense'),
      ('Nidoqueen', 'Special Defense'),
      ('Nidoking', 'Special Attack'),
      ('Mankey', 'Special Defense'),
      ('Primeape', 'Special Defense'),
      ('Machoke', 'Special Defense'),
      ('Golem', 'Special Defense'),
      ('Grimer', 'Special Defense'),
      ('Cubone', 'Special Defense'),
      ('Electabuzz', 'Special Attack'),
      ('Porygon', 'Special Attack'),
      ('Kabuto', 'Special Attack')],
 14: [('Squirtle', 'Special Defense'),
      ('Ekans', 'Special Defense'),
      ('Arbok', 'Special Defense')],
 15: [('Charmeleon', 'Special Attack'),
      ('Wartortle', 'Special Defense'),
      ('Venonat', 'Special Defense'),
      ('Psyduck', 'Special Attack'),
      ('Golduck', 'Special Attack'),
      ('Onix', 'Special Defense'),
      ('Lickitung', 'Special Defense'),
      ('Magmar', 'Special Attack'),
      ('Pinsir', 'Special Defense'),
      ('Aerodactyl', 'Special Defense')],
 20: [('Blastoise', 'Special Defense'),
      ('Raticate', 'Special Defense'),
      ('Jigglypuff', 'Special Attack'),
      ('Growlithe', 'Special Attack'),
      ('Arcanine', 'Special Attack'),
      ('Poliwrath', 'Special Defense'),
      ('Machamp', 'Special Defense'),
      ('Slowbro', 'Special Attack'),
      ('Mr. Mime', 'Special Defense'),
      ('Jynx', 'Special Attack')],
 24: [('Charizard', 'Special Attack')],
 25: [('Wigglytuff', 'Special Attack'), ('Scyther', 'Special Defense')],
 30: [('Marowak', 'Special Defense')],
 35: [('Beedrill', 'Special Defense'), ('Muk', 'Special Defense')],
 40: [('Kangaskhan', 'Special Defense')],
 45: [('Snorlax', 'Special Defense')],
 75: [('Hitmonlee', 'Special Defense'), ('Hitmonchan', 'Special Defense')]}