Forty-five (45) out of the 540 of the cards in the cube have been changed, allowing for some new and exciting additions from Aetherdrift and Tarkir: Dragonstorm
You can use it in many decks, as it helps you draw more cards to create a deck that can be strong in any situation
You can use it to save stuff from mass removal or targeted, protect something post-bounce, and a lot more
Its nice that your artifact becomes an 8/8 permanently, but this design looks very fragile to me
Unlike the Imp and the Bird, theres no chance for Hawkeater Moth to do anything other than sit there and hope to take down another creature with one toughness
The Prerelease format allows players to compete with a 40-card deck, with four Prize cards set aside at the start of play, as opposed to a 60-card deck with six Prize cards