Basically a retelling of Gravity Falls, but pokemon exist. When the Pines twins arrive to Gravity Falls, Dipper has a Natu he befriended when he was younger, while Mabel has no pokemon(her first pokemon will be Woddles the Tepig). They stay with their Grunkle Stan, who has a Zorua and Meowth. Soos has a Unown(?)(dragon type hidden power). Wendy has a Purloin, Snover, and Trevenant. On certain episodes things change, like the Pteradactyl episode, it's a Aerodactyl, which Soos Catches. Also, Bill will Occationally pull Dipper and Mabel into the dream world, where they'll each catch a rare pokemon, be it a shiny, know a move it shouldn't, or even be a mythical. Bill has a Darkrai and a Giratina. And no, there isnt a league, but the county might hold a few competitions.

Catches:
Headhunters: Dipper catches Litwick that was being used by Wax Statues.

Random: Dipper catches a Shelmet and Mabel catches a Karablast.