Hmm... Since I'm imagining Route 1 to be a mix of grassland/foothills region (i.e. Colorado Foothills) I'll grant you this: Rattata, Bidoof, Ekans, Geodude, and Spinarak/Rufflet as Rare Encounters.
Name: Kingbull Type: Fairy/Fighting Evolves from: Granbull How to Obtain: Give Granbull a King's Rock and have it level up w/ a Fighting Move
Name: Braviary (Kaidan Form) Type: Flying/Electric How to Obtain: Level up Rufflet in the Kaida Region
Annnnnd... Because I mentioned them in this recent post, here is some art I pulled for what our two newest Kaidan Pokémon! Even without custom art I legit LOVE these concepts. I have wanted an actual thunderbird Pokemon for soooo long...
@Crimson Flame The Dratini one wasn't made up, but now I'm finding it's more fun/makes more sense to make custom dex entries, considering the Rufflet one.
Oh btw, question for both you and @TheNoCoKid, I once drew a poison/dragon mega Arbok, with its hood shaped like wings. How does that sound? It could be a regional variant if you'd prefer that to a mega. Either way, if you'd like a draconic Arbok, I can find and redraw it.