One will be put into the graveyard
The gradual mana advantage pairs nicely with the mill, even if these are relatively ineffective later in the game
MISS Docent of Perfection is just too expensive for a creature that enters the battlefield with no immediate effect and also requires more cards to get additional value when you untap with it
It's nothing too major, but they do look cleaner and sleeker, and very much fit in with the sense that the set's release coincides with a "new" version of a classic
On a low mana value card, such as Shardless Agent, the cascade ability typically functions more like a tutor, searching your library for a card with mana value two or less and casting it for free
Great for both new and veteran players, expanding on previous booster packs