>>57117301>>57117356Assuming we have all the Kalos mons (famously only 72), all the mons that can mega evolve and their families (114 total, but Diancie is also a XY mon), we get 185 mons, which is ALSO the number of mons not available in just SV and its dlc, so adding them together, we get 370 pokemon, which is a bit much for legends but for a normal pokedex is just fine. Base SV had 400 exact, and base SS had 401 (counting the pokeball+ mew), so it tracks well. The OG Kalos regional dex had over 450 pokemon, so we'd actually be reducing the number of mons in Kalos if we went with a nice 370 total. That leaves possibly 30 spots for new forms and/or evolutions if we really wanna be slick.