Pending PS to pokemon games (Read the description)

[J&c]

basicly what I mean by this is that like there would be a button that alowed you to select a game and it will show you where to get the items and pokemon in said game

 

[J&c]

in team builder

 

[WarriorGallade]

You'll have more luck looking up info about the Pokemon and items on Bulbapedia instead of Showdown; adding these to the teambuilder would be a niche feature that is likely to be clutter to people who don't play in-game imo.