Take a look at MaRos articles describing new sets - he does not just dump the image gallery and say let me know what you think - he describes the sets design goals, the mechanics, why they were chosen, how those mechanics were placed in each colour, the limited archetypes the set was designed around, some anecdotes about the design process, etc
Mythic rares are designed to feel special, whether that means a story-important character, a game-changing threat, or a card so powerful that it may just end the game outright if left unanswered
With your palm up left hand strip packets off the top of the deck with your thumb and 2nd finger
Unsurprisingly, there's only 4 cards that reward you specifically for having 7+ power (e.g
This creature gets +1/+1 for each Aura on the battlefield