Collector Boosters are the best place to get rare and mythic rare Booster Fun cards. Commander Legends: Battle for Baldur's Gate Collector Boosters contain a total of six rares and mythic rares:
Magic The Gathering: Outlaws of Thunder Junction Commander Deck Quick Draw
$45.99
Magic The Gathering: Outlaws of Thunder Junction Commander Deck Desert Bloom
$45.99
Magic The Gathering: Outlaws of Thunder Junction Commander Deck Most wanted
$45.99
Magic The Gathering: Outlaws of Thunder Junction Commander Deck Grand Larceny
$45.99