This is just one of the Magic: The Gathering preorders available at Amazon right now, and definitely one of the most expensive
Mystic Intellect is a "classic" Jeskai precon, doing what the color combination does best: casting a ton of spells
When it comes to doing a quick and dirty expected-value calculation of your own, the formula is the same for rares as for mythics: add up the value of all of the rares in the set, divide by the total number of rares in the set (almost always 53), and then multiply by the number of rares you should open in a box (31.5, with the other 4.5 rare slots being filled by mythics)
For more cards that reward you for discarding cards, card draw is a surprisingly common payoff
Wargamer recently sat down for an interview with Senior Magic Designer Gavin Verhey to talk about the deck
Creature - Human Rogue Assassin Drain (CTRL to add secondary) Draw Adwal, Breaker of Chains When Adwal enters, reveal the top six cards of your library