With that said, labels are effective alternatives many game designers use to denote their booster pack contents
The first question that inevitably comes to mind when evaluating Kaust, Eyes of the Glade is: Why play this over Kadena, Slinking Sorcerer? Because Kaust and Kadena only share one color, they have very different tools, though they overlap in payoffs: card advantage and mana production
Even if you just draw three cards it is a slightly more expensive Harmonize, another popular green draw spell
Its best to perform game actions at the last possible moment so your opponent has the least possible time to react, and you can act with the most information possible
Then, using these probabilities of target cards being in hand, I did the same method as described of using hypergeometric distributions to find the probabilities that the remaining copies end up in the prize cards
Still, flashing it in to get rid of some huge problem you can't remove isn't a bad trick