People already play cards like Ravenform, so why not
But, what can you do to maximize your card collecting without spending hundreds to thousands of dollars
Set: Avatar: The Last Airbender Printing: Foil Increase: +$478.30 Current Market Price: $3,544.37 Avatar Aang remains one of the best ways to put all of your Avatar cards in one singular Commander deck, but its very likely that this particular printing is going up purely as a collectors item, rather than because of the card itself
Collective Resistance Rating: 1/10 This is the first escalate card we've seen since Eldritch Moon
Dig Through Time / Treasure Cruise While Dig Through Time and Treasure Cruise aren't actually free, they are way too close to free to be fair in Modern
Amusingly, proliferating your opponents Urzas Saga can be a good way to punish your opponent for playing the card, but more often than not I would expect the card to be excellent here