In addition, spells or abilities that check the characteristics of a discarded card (such as Chandra Ablaze's first ability) can find that card in exile.
I can see this enabling some creative plays, especially in conjunction with flicker effects
As you can see from the examples, there are lots of ways to win the game with this approach, lots of ways to stifle early threats, and lots of ways to gain card advantage
Balance (T1, S) What do you get when you combine Wrath of God, Armageddon, and Mind Twist into one card
And thats not all: remove flying counters from your creatures placed on them by Luminous Broodmoth, slow down the aging of Cumulative upkeep cards, like Mystic Remora (or Blizzard, if you feel like putting flying counters on opponents creatures like a monster), allow Undying creatures to continually un-die the (giant robotic manta in the) skys the limit
"Feature Review, Magic: The Gathering"