This is because Poison-types are strong against Grass- and weak against other Poison-types

It looks as follows: Onix, Wailmer, Palpitoad, Kricketot, Aipom, Woobat, Ducklett, Swirlix, Alolan Grimer, Slugma, Chinchou, Cosmog (Unaware), Pancham, Drilbur, Tangela, Eevee (Follow My Tail), Duskull, Tympole, Flabb (Petal Blizzard), Alolan Sandshrew, Ponyta, Sunkern, Cosmog (Ascension), Psyduck, Trapinch (Dig), Oddish, Rufflet, Piplup, Alolan Vulpix, Rockruff, Stufful, Rowlet (Skill Dive), Phantump, Magnemite, Lillipup, Trapinch (Nest Building), Sneasel, Spheal (Body Slam), Alolan Meowth, Ralts, Passimian, Jangmo-o (Gnaw), Rowlet (Hide and Seek), Skrelp, Pikachu, Teddiursa, Nosepass, Litleo, Flabb (Floral Invitation), Spheal (Rollout), Natu, Palpitoad, Jangmo-o (Raging Claws), Deerling, Golett, Dewpider, Aipom, Onix, Tepig, Alolan Sandshrew, Snorunt, Koffing, Drilbur, Swirlix, Kricketot, Woobat, Ducklett, Helioptile, Cosmog (Unaware), Slugma, Wailmer, Pawniard, Togedemaru, Trapinch (Dig), Flabb (Petal Blizzard), Tangela, Duskull, Tympole, Piplup, Cosmog (Ascension), Ponyta, Crabrawler, Carvanha, Chinchou, Azurill, Rufflet, Oddish, Ralts, Sandygast, Spheal (Body Slam), Cottonee, Rowlet (Skill Dive), Phantump, Alolan Grimer, Magnemite, Eevee (Lead), Flabb (Floral Invitation), Sneasel, Natu, Trapinch (Nest Building), Spheal (Rollout), Passimian, Rowlet (Hide and Seek), Lillipup, Skrelp, Pikachu, Stufful, Pawniard, Litleo, Koffing, Nosepass, Snorunt, Rockruff, Deerling, Teddiursa, Golett, Dewpider, Helioptile, Carvanha, Tepig, Togedemaru This concludes the Sun & Moon series

I think there are going to be three more installations before it gets picked up by Netflix
With its promo status and authentic details from the Pokmon movie, it is an obvious choice for both collectors and nostalgics looking for something truly special