https://bulbapedia.bulbagarden.net/wiki/User:Caciulacdlac/Pok%C3%A9mon_that_appeared_before_their_generation
Anyone else miss when next-gen Pokemon would premiere in the anime years before their introductory games? Like Ho-Oh in the first episode two and a half years before G/S came out, or Munchlax in AG two years before D/P came out.
Keckleon and Wynaut showed up before the anime had even made the switch to digital, which is a bit crazy to think about