If you've ever felt that carting around all your Magic: The Gathering EDH decks is a bit of a hassle, then just be thankful you're not Sam Huggins
As any user of a Walker knows theres a lot of value in the sheer flexibility of having multiple abilities available to be used turn after turn
It's any noncreature spell, we're just talking tons of 1/1s, what makes it so big IMO is that it's flexible being soldiers that are also artifacts, so you can use it to trigger a lot of things
Its a political card that incidentally fairs well against opposing counter-based decks
Green has very few six drops that it wants to play and so if nothing else Prime Time is an important curve smoothing card
Future Flight, another card from the Spider-Man Eternal set, lets the player draw two cards as it enters, and add a +2/+0 counter to the creature it enchants