You can choose a horse, similarly to how you choose a tower for Urshifu.
Ultra Beasts are catcheable in the post-game.
Legendaries are unlocked as soon as you can access Dinamax Adventures
Main story is around 4 hours
#898-2: Calyrex (Shadow Rider)
High King Pokémon
⚔️ It's said that Calyrex and a Pokémon that had bonded with it ran all across the Galar region to bring green to the wastelands.
