>>44170175Living dex is easy
>Gen 1 shitters can be caught using LGPE, they're literally everywhere since Gen 6 if you refuse to touch LGPE and RBY Virtual consoles exist>Gen 2 and 3 shitters can be had easily from ORAS, GSC have Virtual consoles>Gen 4 shitters are everywhere, except maybe for Glameow>I have no idea how common Gen 5 Pokemon are after their games expired but they're the first games able to be transported without gimmicks into Pokemon Bank>Kalos and Alola shitters are everywhere, including Sword/Shield>the only Pokemon you won't get on Sword/Shield is the other box legendaryWarp holes in USUM and Mirage spots in ORAS made legendaries easy to acquire
Celebi can be had via Crystal Virtual console
Mew can be bought via a brand new Pokeball Plus
You may have to use DNS exploits for the DS and 3DS to get previous gen mythicals like Arceus, Darkrai, Shaymin, Manaphy, Volcanion, Hoopa, Magearna, etc.
Zeraora was literally free months ago on the 3DS and a week ago for the Sword/Shield
Trade evolutions? They were made available easily on Sword/Shield, you just have to collect 8 badges
Unowns? Play ORAS and fly to the designated Mirage spot