But even without those tricks, its pretty easy to cast: A deck with fetch lands and some cheap cantrips has no trouble getting this into play quickly and overwhelming the board with an army of manifests
we can tell that much at least
With the creature type Knight and with good Black aggro decks floating around, I can see this being played a lot
No matter the game state, drawing two cards will generally be beneficial
My proof of concept that kept me watching for ways to abuse it was the combination of Emmara, Soul of the Accord, Song of Freyalise, Shanna, Sisays Legacy and March of the Multitudes, which alone is lethal on Turn five (assuming no missed land drops)
The normal advice here is that the prices will drop and then recover, but I'm starting to wonder if this is still true considering that some of the best cards on the Enchanted Tales sheet were also just reprinted in Commander Masters