Were assuming this means with just the included decks, but like the previous two quest sets, you may be able to go up to three or four players using your own decks
Feather is strong
Eggs are combo decks that cycle zero- to one-mana artifacts (such as Lotus PetalLotus Petal or Mishra's BaubleMishra's Bauble) for incremental value, and close out game with cards like Reckless FireweaverReckless Fireweaver or Disciple of the VaultDisciple of the Vault
The reason this happens is because cards don't retain any knowledge of their past when exiled, and so default back to the untransformed state when they re-enter the battlefield.
Really though, any deck that can take advantage of cheating an enchantment into play is often looking at Eldrazi Conscription as one of their best options
Birds of Paradise, Phyrexian Arena, Exotic Orchard, and Hallowed Burial are all cards with enough casual demand to sustain a new printing every three to four years