No real classification out there, in general fully evolved mons are pretty rare, and there are several other rare pokemon like lickitung, chansey, tangela, hitmonlee, hitmonchan, lapras, snorlax, aerodactyl, then its the regionals, then there are some more common pokemon that are just not nest pokemon like grimer, dratini, koffing, porygon
Pokemon Rarity
Hi, is there an agreed classification of pokemon by rarity including evolved forms? I know that pidgey, rattata etc are common but what falls into rare and ultra rare? Presumably Dragonite is "ultra rare" but what about Dragonair? I guess this is in the code somewhere but I can't find a definitive list. Thanks! Rob
Answers
Totally agree, it depends on your location for sure, for a lot of people chansey, koffing,grimer and tangela for example are ultra rare, it was like this for me but they drop often on my town since like 3/4 months ago, I have 6 muks with a lot spare grimer candy, 20 weezings, 27 tangelas and 15 chanseys.
In my case the only mon I have never seen in the wild at this point is Lapras, and I don't think never one has spawned here, we have river but not beach.
The others ultra rares for me are Aerodactyl (only 1 seen and caught in the wild), Dragonite (3 seen in the wild 0 caught, I have 4 evolved) and Porygon (6 seen and all them caught).