The closest I could find to anybody doing it in the mainstream recently was Artifact (I know, I know, I'm stretching the word "mainstream" here) with a slightly bastardised version of the concept handled via Steam's marketplace, and even then it's still an online auction house, not just doing fun swaps with your pals and saying "well I've got this, what've you got?", like exchanging the best parts of your packed lunches at school
Players cannot mulligan
Any of the main heroes could make for solid Commanders in their own right, though, with most wielding multiple mana colours and having unique, potentially game-changing abilities
4,000 charizards graded at PSA alone
These collector boosters have been incredibly hard to come by, hence the high pricing
Play HeiHei (Not-So-Tricky Chicken) and exert that item so it cant ready at the beginning of your opponents turn