Of the bands in this roulette, I'm already a fan of Opeth, PT/SW, C&C and SB/NM, owning 95% of these bands' collective studio discography.
Of the other four, I only own 1 or 2 albums of each and wouldn't consider myself a fan (least of all BTBAM), but after this roulette, I'd say Mastodon is the only one I'd be willing to take a deeper dive on. Still not completely convinced though.