It is an air-tight seal, but once a week I open the case and let the cards air out for at least a few hours before shutting them up again
Drawing A Whole New World will quickly rack up your lore count, especially if you've got more than one Jafar, Striking Illusionist in play and exerted when you either play or Sing the song
I would not overreact to the perception of this set as "bad" and buy everything that isnt awful, but its safer than normal to preorder or trade for the significant cards in this set than it was for Return to Ravnica or Theros
Obviously if you play spells or traps, you shouldnt be playing Sekkas Light
Seven hours a day, five days a week, 19 playtesters play the TCG to see how new cards fare
Tasigur, the Golden Fang: Ill admit to being a little cool on Tasigur when it came out because Im lukewarm on delve in the format