Character cards form the core of a deck
Alacrian Jaguar Archmage's Newt Autarch Mammoth Bounding Felidar Bridled Bighorn Brightfield Glider Brightfield Mustang Bulwark Ox Calamity, Galloping Inferno Caustic Bronco Congregation Gryff Drover Grizzly Fortune, Loyal Steed Giant Beaver Gila Courser Gilded Ghoda Gloryheath Lynx Guardian Sunmare Lagorin, Soul of Alacria Ornery Tumblewagg Quilled Charger Rambling Possum Routeway Moose Seraphic Steed Stubborn Burrowfiend Switchgrass Grazer The Gitrog, Ravenous Ride Trained Arynx Unswerving Sloth Venomsac Lagac There are also several cards that care about mounts, but without being mounts themselves: In Steer Clear you have a bit of cheap removal spell that gets better with a mount
Those codes were handed out in the promotion "Find your Champion"
Pokmon cards come in packs, boxes, tins, promo packs, prizes and give-a ways
If you're seeing your local card shops sell-out on pre-orders before release, chances are there's a lot of hype for that set
If the two halves of the spell both can target, you may choose those targets separately