To make it easier to jump in with friends, most sets get preconstructed Commander Decks built around a specific theme or playstyle
Red has massive token creation, like Tempt with Vengeance or Kindred Charge, and most creaturefall cards dont care if its a creature or a token creature that enters the battlefield
An incredible token-tripler the likes of which MTG has never seen, Ojer Taq enhances one of white manas key strategies to a scary degree
Divide by Zero Right now, Alchemy is a lot of casting the same card over and over again into your opponents Divide by Zero and Fading Hope, only for them to cast Lier, Disciple of the Drowned and do it all over again in what is a blatant mockery of its no counters clause that is intended to protect players from this exact play pattern
Then, it's a massive indestructible monster that provides an alternate win condition by exiling cards from players' libraries 20 at a time
That rotation keeps the metathe most common strategiesfresh, but it requires constant buy-ins