As a reminder, cards from The Big Score were originally slated for an MotM Aftermath style set but were folded into the main set. They appear on The List and are Standard legal
As a reminder, cards from The Big Score were originally slated for an MotM Aftermath style set but were folded into the main set. They appear on The List and are Standard legal
The BIG sheet was originally going to be an Aftermath style epilogue booster product… But since Aftermath was so reviled by the community and sold so poorly (charging full price for 5 card boosters wasn’t popular, who’d’ve gussed?) they made it a second bonus sheet for the main set instead.
According to WotC you’re 20% per playbooster for for a list card, which then needs to roll this mythic. (Edit: making the assumption that List rares and mythics appear at the same rate as the Crime bonus sheet R/Ms, then you’ll see a random BIG R/M at less than once every 15 packs (because they share the slot with SPGs).)