I got this yesterday, though I don’t know how it triggered !!
From my experience, it triggered when I reached 15 hundos
Actually, the recent 100% Tynamo was my 20th perfect, so I guess it might be linked to get triggered when the count reaches 20 ?
Really makes you wonder about how the classification is unlocked difderently for other trainders
it’s strange, i have 20,000 captures and 9 hundos, while a friend who just got the game has 600 captures and 2 hundos.
Since you mentioned it, then I want to say that I had caught just over 10,000 Pokemon and had got 20 Perfect species, though only 14 them are in my storage.
It’s all relative… I love the Hundos, and play searching them. So in my previous account I had more than 600, and in the actual account I have more than 200 and rising. It’s just a playing style.