The rares and above are also generally strong removal or bomb-level spells, so I think this is a group of cards with high impact
Not to mention that it also grows, which can pressure your opponent on top of drawing some more cards
It's hard to see how good it is, because it's just like any time a draw card is printed
Having a 2500 base ATK Ace Monster in Number 39: Utopia isn't too shabby, either
Best Izzet Mana Ramp Cards (Galazeth Prismari, Prismari Command, Storm the Vault) Izzet doesnt have a lot of mana ramp options, and while there are some that have niche appeal like Dalakos, Crafter of Wonders, the best cards with universal appeal lean on the acceleration provided by Treasure tokens to fix and generate mana
With spree, players will be able to activate more than one ability/benefit on a card by paying the additional cost required