God damn aliens <| sep |> I ' m not so sure about that . I know that the Pokemon is determined when you pick up the egg from the stop . You ' re assuming that if Niantic removed all commons and left those 3 , a stop wouldn ' t spit out a 10 km egg if it isn ' t one of those . Is that what you mean ? I think the drop rate of a 10 km egg is different than the selection of what Pokemon you ' re going to hatch . So what could happen is the drop rate isn ' t changed at all proposed drop rate is about 6 % according to this silphroad post , but then each of those 3 have a 33 % to be hatched . If drop rate is not changed , then yes , we ' ll have an abundance of those 3 in gyms . <| sep |> How many crates for spyders <| sep |> I wish I had half the confidencepersonality this bird has .