Some full arts cannot be obtained by opening packs and instead are included as parts of special, limited-edition collections
I suggested using cards from the top of your library because I liked the balance that you were using your library as a means to deplete your opponent's library
At the end of the turn, each player discards their hand
Maestros - Blue Black Red (Grixis), Riveteers - Black Red Green(Jund), Cabaretti - Red Green White (Naya) and Brokers - Green White Blue (Bant)
Luckily, Tornadus' subsequent dropoff wasn't as dramatic as some other beneficiaries of the temporary boom, as it slowly lost value over a few months
They can be flashed back with Snapcaster Mage or Lier, Disciple of the Drowned, or returned to your hand via Archaeomancer