You can hoard Treasure tokens with it and do some direct damage if you can create or cast lots of creatures in a single turn
And each one is different
If you don't have a card that can be collected, you can't exchange cards, so it's a pain that you can't use it to avoid accidents, especially in U.A
This does feel like the kind of card that will result in a ton of rules misunderstandings in more casual EDH play, but I don't think there's any hope for getting Wizards of the Coast to slow down on adding more and more complicated keywords and mechanics
[6] On the Official Card Database, until August 2022, [7] [8] cards of this rarity released from their debut in Rising Rampage (July 25, 2019) [9] until Lightning Overdrive (June 3, 2021) [10] are labelled as Prismatic Secret Rare (except "Number 39: Utopia", which was instead labelled 10000 Secret Rare [11] )