Yeah I think we need one, so
A) mods know what kinds of things to make appear in wild
B) I need it for Minoru game
I have so far:
Starters obviously
Regional bug pokemon
Pidgey? Spearow? Rattata(seen them in wild few times)
Elekid/Magmar/Smoochum and evolutions, Magby was an exstarter so it should be comon
Budew and Azuril: same deal
All Pokemon Gym Leader and E4 +champion have obviously, excluding starters from other regions
Some customs, mainly Falkion Phione Raion and Dark Pheonixes legies