Overall, the structure of the set remains the same including a new crop of powerful alternate art Enchanted cards
Black Market Connections is the headliner, a premium engine that each turn trades life for Treasure, cards, or a 3/2 changeling Shapeshifter that counts as a Villain, and it slots perfectly into a deck built around paying small costs for big advantage
With powerful cards like Amazing Rare Raikou [Vivid Voltage], Radiant Charizard [Pokemon Go], and Amazing Rare Yveltal [Shining Fates] all being playable in a single list - this archetype is a bunch of fun
Since your deck will be full of instants and sorceries anyway, that prowess ability can grow it into a 4/5, 5/6, or something waaay bigger depending on how many cards you can play in a turn
(Just under) half the time its going to be a 4/4 green Ox creature token, which is big enough to be significant a lot of the times, though obviously much better than that Avacyn
Trace and cut out the head, leaving the fold line intact