The First Partner packs enshrine that nostalgia alongside an invitation to crack open a couple of boosters, if only for old times sake.
Since you are likely to have two Commanders in most new decks coming out of Commander Legends, this cycle is even more likely to land both halves
As with vintage booster boxes, older tends to mean scarcer when it comes to sealed product, but there can be more variance when it comes to discussing price (though more recent sets tend to be less expensive to buy sealed product for overall)
Also from the Magic: The Gathering Twitter is Ballot Broker, a 2/3 White Human Advisor which costs two generic and one White mana to cast
Bosh saw most of his play in mana ramp artifact decks rather than cheat in ones
In terms of rolling the Planar die, players can decide whether or not they want to during their main phase